Showing posts with label fossil. Show all posts
Showing posts with label fossil. Show all posts

Monday, 18 August 2025

FOSSIL RHINOS AND THE GREAT DEPRESSION

The Miocene pillow basalts from the Lake Roosevelt National Recreation Area of central Washington hold an unlikely fossil. 

What looks to be a rather unremarkable ballooning at the top of a cave is actually the mould of a small rhinoceros, preserved by sheer chance as its bloated carcass sunk to the bottom of a shallow lake just prior to a volcanic explosion.

We have known about this gem for a long while now. The fossil was discovered by hikers back in 1935 and later cast by the University of California palaeontologists in 1948. 

The Dirty Thirties & The Great Depression

These were the Dirty Thirties and those living in Washington state were experiencing the Great Depression along with the rest of the country and the world. Franklin D. Roosevelt was President of the United States, navigating the States away from laissez-faire economics. 

Charmingly, Roosevelt would have his good name honoured by this same park in April of 1946, a few years before researchers at Berkeley would rekindle interest in the site.

Both hiking and fossil collecting was a fine answer to these hard economic times and came with all the delights of discovery with no cost for natural entertainment. And so it was that two fossil enthusiast couples were out looking for petrified wood just south of Dry Falls on Blue Lake in Washington State. 

While searching the pillow basalt, the Frieles and Peabodys came across a large hole high up in a cave that had the distinctive shape of an upside-down rhinoceros.

This fossil is interesting in all sorts of ways. First, we so rarely see fossils in igneous rocks. As you might suspect, both magma and lava are very hot. Magma, or molten rock, glows a bright red/orange as it simmers at a toasty 700 °C to 1300 °C (or 1300 °F to 2400 °F) beneath the Earth's surface.

A Rhinoceros Frozen in Lava

During the late Miocene and early Pliocene, repeated basaltic lava floods engulfed about 63,000 square miles of the Pacific Northwest over a period of ten to fifteen million years. After these repeated bathings the residual lava accumulated to more than 6,000 feet.

As magma pushes up to the surface becoming lava, it cools to a nice deep black. In the case of our rhino friend, this is how this unlikely fellow became a fossil. Instead of vaporizing his remains, the lava cooled relatively quickly preserving his outline as a trace fossil and remarkably, a few of his teeth, jaw and bones. The lava was eventually buried then waters from the Spokane Floods eroded enough of the overburden to reveal the remains once more.

Diceratherium tridactylum (Marsh, 1875)
Diceratherium (Marsh, 1875) is known from over a hundred paleontological occurrences from eighty-seven collections.

While there are likely many more, we have found fossil remains of Diceratherium, an extinct genus of rhinoceros, in the Miocene of Canada in Saskatchewan, China, France, Portugal, Switzerland, and multiple sites in the United States.

He has also been found in the Oligocene of Canada in Saskatchewan, and twenty-five localities in the United States — in Arizona, Colorado, Florida, Nebraska, North Dakota, Oregon, South Dakota, Washington and Wyoming.  

Diceratherium was a scansorial insectivore with two horns and a fair bit of girth. He was a chunky fellow, weighing in at about one tonne (or 2,200 lbs). That is about the size of a baby Humpback Whale or a walrus.

Back in the Day: Washington State 15 Million-Years Ago

He roamed a much cooler Washington state some 15 million years ago. Ice dams blocked large waterways in the northern half of the state, creating reservoirs. Floodwaters scoured the eastern side of the state, leaving scablands we still see today. In what would become Idaho, volcanic eruptions pushed through the Snake River, the lava cooling instantly as it burst to the surface in a cloud of steam. 

By then, the Cascades had arrived and we had yet to see the volcanic eruptions that would entomb whole forests up near Vantage in the Takama Canyon of Washington state. 

Know Before You Go

You are welcome to go see his final resting site beside the lake but it is difficult to reach and comes with its own risks. Head to the north end of Blue Lake in Washington. Take a boat and search for openings in the cliff face. You will know you are in the right place if you see a white "R" a couple hundred feet up inside the cliff. Inside the cave, look for a cache left by those who've explored here before you. Once you find the cache, look straight up. That hole above you is the outline of the rhino.

If you don't relish the thought of basalt caving, you can visit a cast of the rhino at the Burke Museum in Seattle, Washington. They have a great museum and are pretty sporting as they have built the cast sturdy enough for folk to climb inside. 

The Burke Museum 

The Burke Museum recently underwent a rather massive facelift and has re-opened its doors to the public. You can now explore their collections in the New Burke, a 113,000 sq. ft. building at 4300 15th Ave NE, Seattle, WA 98105, United States. Or visit them virtually, at https://www.burkemuseum.org/

Photo: Robert Bruce Horsfall - https://archive.org/details/ahistorylandmam00scotgoog, Public Domain, https://commons.wikimedia.org/w/index.php?curid=12805514

Reference: Prothero, Donald R. (2005). The Evolution of North American Rhinoceroses. Cambridge University Press. p. 228. ISBN 9780521832403.

Reference: O. C. Marsh. 1875. Notice of new Tertiary mammals, IV. American Journal of Science 9(51):239-250

Lincoln, Roosevelt and Recovery from The Great Depression

Rural Tennessee has electricity for the same reason Southeast Alaska has totem parks. In order to help the nation recover from The Great Depression, President Franklin D. Roosevelt, created a number of federal agencies to put people to work. From 1938-1942 more than 200 Tlingit and Haida men carved totem poles and cleared land for the Civilian Conservation Corps in an effort to create “totem parks” the federal government hoped would draw travelers to Alaska.

This odd intersection of federal relief, Alaska Native art and marketing is the subject of Emily L. Moore’s book “Proud Raven, Panting Wolf: Carving Alaska’s New Deal Totem Parks.”

This effort to bring poles out of abandoned villages includes the Lincoln Pole being moved to Saxman Totem Park by the Civilian Conservation Corps (CCC), who established the Saxman Totem Park in 1938.  

The top carving on the Lincoln Pole bears a great likeness of Abraham Lincoln. According to the teachings of many Tlingit elders, this carving was meant to represent the first white man seen in Tlingit territory in the 18th century.  

A century later, in the 1880s, one of my ancestors from the Gaanax.ádi Raven clan of the Tongass Tlingit commissioned the pole to commemorate our ancestor's pride to have seen this first white man—which has become a Gaanax.ádi crest—using a photograph of Abraham Lincoln as the model. 

It is important not only for these various readings of the crests but also because it claims Gaanax.ádi clan territory before the first Europeans and budding Americans came to these shores—territory that Tlingit carvers who were re-carving the pole in the 1940s were trying to assert to the U.S. government as sovereign land.

Interestingly, another pole in that same park is the Dogfish Pole, carved for Chief Ebbits Andáa, Teikweidi, Valley House. The Chief Ebbits Memorial Pole—the Dogfish Kootéeyaa Pole—was raised in 1892 in Old Tongass Village in honour of a great man, Head Chief of the Tongass and my ancestor. It was then moved, re-carved and re-painted at Saxman Totem Park in 1938 as part of Roosevelt's program—and it due to be re-carved again this year. 

It tells the story of his life and the curious way he became Ebbits as he was born Neokoots. He met and traded with some early American fur traders. One of those traders was a Mister Ebbits. The two became friends and sealed that friendship with the exchanging of names.  

If you would like to read more about that pole and others, I recommend, The Wolf and the Raven, by anthropologist Viola Garfield and architect Linn Forrest (my talented cousin), published in 1961 and still in print as I ordered a copy for a friend just this year.

Sunday, 17 August 2025

AVES: LIVING DINOSAURS

Cassowary, Casuariiformes
Wherever you are in the world, it is likely that you know your local birds. True, you may call them des Oiseaux, pássaros or uccelli — but you'll know their common names by heart.

You will also likely know their sounds. The tweets, chirps, hoots and caws of the species living in your backyard.

Birds come in all shapes and sizes and their brethren blanket the globe. It is amazing to think that they all sprang from the same lineage given the sheer variety. 

If you picture them, we have such a variety on the planet — parrots, finches, wee hummingbirds, long-legged waterbirds, waddling penguins and showy toucans. 

But whether they are a gull, hawk, cuckoo, hornbill, potoo or albatross, they are all cousins in the warm-blooded vertebrate class Aves. 

The defining features of the Aves are feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton. The best features, their ability to dance, bounce and sing, are not listed, but it is how I see them in the world.

These modern dinosaurs live worldwide and range in size from the 5 cm (2 in) bee hummingbird to the 2.75 m (9 ft) ostrich. 

There are about ten thousand living species, more than half of which are passerine, or "perching" birds. Birds have wings whose development varies according to species; the only known groups without wings are the extinct moa and elephant birds.

Wings evolved from forelimbs giving birds the ability to fly
Wings, which evolved from forelimbs, gave birds the ability to fly, although further evolution has led to the loss of flight in some birds, including ratites, penguins, and diverse endemic island species. 

The digestive and respiratory systems of birds are also uniquely adapted for flight. Some bird species of aquatic environments, particularly seabirds and some waterbirds, have further evolved for swimming.

Wee Feathered Theropod Dinosaurs

We now know from fossil and biological evidence that birds are a specialized subgroup of theropod dinosaurs, and more specifically, they are members of Maniraptora, a group of theropods that includes dromaeosaurs and oviraptorids, amongst others. As palaeontologists discover more theropods closely related to birds, the previously clear distinction between non-birds and birds has become a bit muddy.

Recent discoveries in the Liaoning Province of northeast China, which include many small theropod feathered dinosaurs — and some excellent arty reproductions — contribute to this ambiguity. 

Still, other fossil specimens found here shed a light on the evolution of Aves. Confuciusornis sanctus, an Early Cretaceous bird from the Yixian and Jiufotang Formations of China is the oldest known bird to have a beak.

Like modern birds, Confuciusornis had a toothless beak, but close relatives of modern birds such as Hesperornis and Ichthyornis were toothed, telling us that the loss of teeth occurred convergently in Confuciusornis and living birds.

The consensus view in contemporary palaeontology is that the flying theropods, or avialans, are the closest relatives of the deinonychosaurs, which include dromaeosaurids and troodontids.

Together, these form a group called Paraves. Some basal members of this group, such as Microraptor, have features that may have enabled them to glide or fly. 

The most basal deinonychosaurs were wee little things. This raises the possibility that the ancestor of all paravians may have been arboreal, have been able to glide, or both. Unlike Archaeopteryx and the non-avialan feathered dinosaurs, who primarily ate meat, tummy contents from recent avialan studies suggest that the first avialans were omnivores. Even more intriguing...

Avialae, which translates to bird wings, are a clade of flying dinosaurs containing the only living dinosaurs, the birds. It is usually defined as all theropod dinosaurs more closely related to modern birds — Aves — than to deinonychosaurs, though alternative definitions are occasionally bantered back and forth.

The Earliest Avialan: Archaeopteryx lithographica

Archaeopteryx, bird-like dinosaur from the Late Jurassic
Archaeopteryx lithographica, from the late Jurassic Period Solnhofen Formation of Germany, is the earliest known avialan that may have had the capability of powered flight. 

However, several older avialans are known from the Late Jurassic Tiaojishan Formation of China, dating to about 160 million years ago.

The Late Jurassic Archaeopteryx is well-known as one of the first transitional fossils to be found, and it provided support for the theory of evolution in the late 19th century. 

Archaeopteryx was the first fossil to clearly display both traditional reptilian characteristics — teeth, clawed fingers, and a long, lizard-like tail—as well as wings with flight feathers similar to those of modern birds. It is not considered a direct ancestor of birds, though it is possibly closely related to the true ancestor.

Unlikely yet true, the closest living relatives of birds are the crocodilians. Birds are descendants of the primitive avialans — whose members include Archaeopteryx — which first appeared about 160 million years ago in China.

DNA evidence tells us that modern birds — Neornithes — evolved in the Middle to Late Cretaceous, and diversified dramatically around the time of the Cretaceous–Paleogene extinction event 66 mya, which killed off the pterosaurs and all non-avian dinosaurs.

In birds, the brain, especially the telencephalon, is remarkably developed, both in relative volume and complexity. Unlike most early‐branching sauropsids, the adults of birds and other archosaurs have a well‐ossified neurocranium. In contrast to most of their reptilian relatives, but similar to what we see in mammals, bird brains fit closely to the endocranial cavity so that major external features are reflected in the endocasts. What you see on the inside is what you see on the outside.

This makes birds an excellent group for palaeoneurological investigations. The first observation of the brain in a long‐extinct bird was made in the first quarter of the 19th century. However, it was not until the 2000s and the application of modern imaging technologies that avian palaeoneurology really took off.

Understanding how the mode of life is reflected in the external morphology of the brains of birds is but one of several future directions in which avian palaeoneurological research may extend.

Although the number of fossil specimens suitable for palaeoneurological explorations is considerably smaller in birds than in mammals and will very likely remain so, the coming years will certainly witness a momentous strengthening of this rapidly growing field of research at the overlap between ornithology, palaeontology, evolutionary biology and the neurosciences.

Reference: Cau, Andrea; Brougham, Tom; Naish, Darren (2015). "The phylogenetic affinities of the bizarre Late Cretaceous Romanian theropod Balaur bondoc (Dinosauria, Maniraptora): Dromaeosaurid or flightless bird?". PeerJ. 3: e1032. doi:10.7717/peerj.1032. PMC 4476167. PMID 26157616.

Reference: Ivanov, M., Hrdlickova, S. & Gregorova, R. (2001) The Complete Encyclopedia of Fossils. Rebo Publishers, Netherlands. p. 312

Friday, 15 August 2025

WARRIOR CRABS: KU'MIS

Look how epic this little guy is! 

He is a crab — and if you asked him, the fiercest warrior that ever lived. While that may not be strictly true, crabs do have the heart of a warrior and will raise their claws, sometimes only millimetres into the air, to assert dominance over their world. 

Crabs are decapod crustaceans of the Phylum Arthropoda. 

In the Kwak'wala language of the Kwakwaka'wakw of the Pacific Northwest, this brave fellow is ḵ̓u'mis — both a tasty snack and familiar to the supernatural deity Tuxw'id, a female warrior spirit. Given their natural armour and clear bravery, it is a fitting role.

They inhabit all the world's oceans, sandy beaches, many of our freshwater lakes and streams. Some few prefer to live in forests.

Crabs build their shells from highly mineralized chitin — and chitin gets around. It is the main structural component of the exoskeletons of many of our crustacean and insect friends. Shrimp, crab, and lobster all use it to build their exoskeletons.

Chitin is a polysaccharide — a large molecule made of many smaller monosaccharides or simple sugars, like glucose. 

It is handy stuff, forming crystalline nanofibrils or whiskers. Chitin is actually the second most abundant polysaccharide after cellulose. It is interesting as we usually think of these molecules in the context of their sugary context but they build many other very useful things in nature — not the least of these are the hard shells or exoskeletons of our crustacean friends.

Crabs in the Fossil Record

The earliest unambiguous crab fossils date from the Early Jurassic, with the oldest being Eocarcinus from the early Pliensbachian of Britain, which likely represents a stem-group lineage, as it lacks several key morphological features that define modern crabs. 

Most Jurassic crabs are only known from dorsal — or top half of the body — carapaces, making it difficult to determine their relationships. Crabs radiated in the Late Jurassic, corresponding with an increase in reef habitats, though they would decline at the end of the Jurassic as the result of the decline of reef ecosystems. Crabs increased in diversity through the Cretaceous and represented the dominant group of decapods by the end.

We find wonderful fossil crab specimens on Vancouver Island. The first I ever collected was at Shelter Point, then again on Hornby Island, down on the Olympic Peninsula and along Vancouver Island's west coast near Nootka Sound. They are, of course, found globally and are one of the most pleasing fossils to find and aggravating to prep of all the specimens you will ever have in your collection. Bless them.


Tuesday, 12 August 2025

INDEX FOSSILS: AMMONITES

Argonauticeras besairei, Collection of José Juárez Ruiz.
An exceptional example of fractal building of an ammonite septum, in this clytoceratid Argonauticeras besairei from the awesome José Juárez Ruiz.

Ammonites were predatory, squid-like creatures that lived inside coil-shaped shells.

Like other cephalopods, ammonites had sharp, beak-like jaws inside a ring of squid-like tentacles that extended from their shells. They used these tentacles to snare prey, — plankton, vegetation, fish and crustaceans — similar to the way a squid or octopus hunt today.

Catching a fish with your hands is no easy feat, as I'm sure you know. But the Ammonites were skilled and successful hunters. They caught their prey while swimming and floating in the water column. Within their shells, they had a number of chambers, called septa, filled with gas or fluid that were interconnected by a wee air tube. By pushing air in or out, they were able to control their buoyancy in the water column.

They lived in the last chamber of their shells, continuously building new shell material as they grew. As each new chamber was added, the squid-like body of the ammonite would move down to occupy the final outside chamber.

They were a group of extinct marine mollusc animals in the subclass Ammonoidea of the class Cephalopoda. These molluscs, commonly referred to as ammonites, are more closely related to living coleoids — octopuses, squid, and cuttlefish) than they are to shelled nautiloids such as the living Nautilus species.

The Ammonoidea can be divided into six orders:
  • Agoniatitida, Lower Devonian - Middle Devonian
  • Clymeniida, Upper Devonian
  • Goniatitida, Middle Devonian - Upper Permian
  • Prolecanitida, Upper Devonian - Upper Triassic
  • Ceratitida, Upper Permian - Upper Triassic
  • Ammonitida, Lower Jurassic - Upper Cretaceous
Ammonites have intricate and complex patterns on their shells called sutures. The suture patterns differ across species and tell us what time period the ammonite is from. If they are geometric with numerous undivided lobes and saddles and eight lobes around the conch, we refer to their pattern as goniatitic, a characteristic of Paleozoic ammonites.

If they are ceratitic with lobes that have subdivided tips; giving them a saw-toothed appearance and rounded undivided saddles, they are likely Triassic. For some lovely Triassic ammonites, take a look at the specimens that come out of Hallstatt, Austria and from the outcrops in the Humboldt Mountains of Nevada.

Hoplites bennettiana (Sowby, 1826).
If they have lobes and saddles that are fluted, with rounded subdivisions instead of saw-toothed, they are likely Jurassic or Cretaceous. If you'd like to see a particularly beautiful Lower Jurassic ammonite, take a peek at Apodoceras. Wonderful ridging in that species.

One of my favourite Cretaceous ammonites is the ammonite, Hoplites bennettiana (Sowby, 1826). This beauty is from Albian deposits near Carrière de Courcelles, Villemoyenne, near la région de Troyes (Aube) Champagne in northeastern France.

At the time that this fellow was swimming in our oceans, ankylosaurs were strolling about Mongolia and stomping through the foliage in Utah, Kansas and Texas. Bony fish were swimming over what would become the strata making up Canada, the Czech Republic and Australia. Cartilaginous fish were prowling the western interior seaway of North America and a strange extinct herbivorous mammal, Eobaatar, was snuffling through Mongolia, Spain and England.

In some classifications, these are left as suborders, included in only three orders: Goniatitida, Ceratitida, and Ammonitida. Once you get to know them, ammonites in their various shapes and suturing patterns make it much easier to date an ammonite and the rock formation where is was found at a glance.

Ammonites first appeared about 240 million years ago, though they descended from straight-shelled cephalopods called bacrites that date back to the Devonian, about 415 million years ago, and the last species vanished in the Cretaceous–Paleogene extinction event.

They were prolific breeders that evolved rapidly. If you could cast a fishing line into our ancient seas, it is likely that you would hook an ammonite, not a fish. They were prolific back in the day, living (and sometimes dying) in schools in oceans around the globe. We find ammonite fossils (and plenty of them) in sedimentary rock from all over the world.

In some cases, we find rock beds where we can see evidence of a new species that evolved, lived and died out in such a short time span that we can walk through time, following the course of evolution using ammonites as a window into the past.

For this reason, they make excellent index fossils. An index fossil is a species that allows us to link a particular rock formation, layered in time with a particular species or genus found there. Generally, deeper is older, so we use the sedimentary layers rock to match up to specific geologic time periods, rather the way we use tree-rings to date trees. A handy way to compare fossils and date strata across the globe.

References: Inoue, S., Kondo, S. Suture pattern formation in ammonites and the unknown rear mantle structure. Sci Rep 6, 33689 (2016). https://doi.org/10.1038/srep33689
https://www.nature.com/articles/srep33689?fbclid=IwAR1BhBrDqhv8LDjqF60EXdfLR7wPE4zDivwGORTUEgCd2GghD5W7KOfg6Co#citeas

Photo: Hoplites Bennettiana from near Troyes, France. Collection de Christophe Marot

Sunday, 10 August 2025

AINOCERAS OF VANCOUVER ISLAND

A wee baby deep chocolate Ainoceras sp. heteromorph ammonite from Vancouver Island. This adorable corkscrew-shaped ammonite is an extinct marine mollusc related to squid and octopus.  

Within their shells, they had a number of chambers, called septa, filled with gas or fluid that were interconnected by a wee air tube. 

By pushing air in or out, they were able to control their buoyancy in the water column. These little cuties were predators who hunted in Cretaceous seas.

They lived in the last chamber of their shells, continuously building new shell material as they grew. As each new chamber was added, the squid-like body of the ammonite would move down to occupy the final outside chamber. 

Not all ammonites have this whacky corkscrew design. Most are coiled and some are even shaped like massive paperclips. This one is so remarkable, so joyously perfect my internal thesaurus can’t keep up.

I will be heading back to the area where these lovelies are found in late March this year to see if I can find other associated fossils and learn more about his paleo community

Sunday, 3 August 2025

FOSSIL CRABS OF SHELTER POINT

This lovely fossil crab is Longusorbis cuniculosus from the Upper Cretaceous ) Late Campanian, Northumberland Formation near Campbell River, British Columbia. This photo was featured in the 2004 BCPA Calendar.

Shelter Point on northern Vancouver Island is a lovely beach site where clastic strata are exposed in the intertidal platform of Oyster Bay. 

The site is located just off the Island Highway, about 10 km south of downtown Campbell River and 4 km farther south along the lower Oyster River. Haggart et al. presented an abstract on this locality at the 12th British Columbia Paleontological Symposium, 2018, Courtenay, abstracts; 2018 p. 28-30. I'll pop a link below if you'd like to give it a read. 

Shelter Point has been collected since the 1970s. No pre-glacial strata were recognized in this area by Muller and Jeletzky (1970). Richards (1975) described an abundant fauna in the beds at Shelter Point, approximately 2 km north of the Oyster Bay exposures, including the crab Longusorbis and associated ammonites and inoceramid bivalves, and he assigned these beds to the Spray Formation of the Nanaimo Group. This information, combined with the very low dip of the Oyster Bay strata and their general lithological similarity with the coarse clastic strata found commonly in the Nanaimo Group, suggested a Late Cretaceous (Campanian) age of the Oyster Bay strata.

Beginning in the 1980s, fossil collectors from the Vancouver Island Palaeontological Society began amassing significant collections of fossils from the strata of southern Oyster Bay that are found several hundred metres southeast of the local road called Appian Way, thus providing the informal moniker Appian Way Beds for these localized exposures. 

While these collections included a great diversity of gastropod, bivalve, nautiloid, scaphopod, echinoderm, and coral specimens, as well as impressive collections of plant materials, much previously undescribed, no taxa found commonly in Campanian strata of the Nanaimo Group were noted in these collections; particularly lacking were ammonites and inoceramid bivalves. For this reason, the hypothesis began to emerge that the Appian Way Beds of Oyster Bay were of younger, post-Cretaceous, age than thought previously. 

Just how young, however, has been a source of some controversy, with different parties continuing to favour the traditional Campanian age — based on lithostratigraphy — others a Paleocene age, and still others an Eocene age — based on plant macrofossils.

Fossil Collecting at Shelter Point:

Fossil Collecting at Shelter Point
At the northern end of Shelter Bay, turn east onto Heard Road, which ends at a public access to Shelter Point. 

Low tide is necessary in order to collect from these shales. Some friends are looking to explore this site over the next week. If you see some keen beans on the beach, check to see if they are the New family, Chris and Bonnie. Welcome them — they are lovely folk!

Industrious collectors unwilling to wait for the tide have employed rubber boots to wade through knee-deep water — rubber boots are highly recommended in any case — and even headlamps to capitalize on low tides during the night. 

Bring eye protection, rain and sun appropriate clothing, hardy footwear and sunscreen to safely enjoy this lovely family trip.   

The fossils, mainly the crab, Longusorbis and the straight ammonite Baculites, occur only in the gritty concretions that weather out of the shale. You'll need a rock hammer to see the lovelies preserved inside. Best to hold the concretion in your hand and give it one good tap. Aside from the fossils, check out the local tide pools and sea life in the area. Those less interested in the fossils can look for seals and playful otters basking on the beaches.

References:

Haggart, J. et al. 58 million and 25 years in the making: stratigraphy, fauna, age, and correlation of the Paleocene/Eocene sedimentary strata at Oyster Bay and adjacent areas, southeast Vancouver Island, British Columbia; https://geoscan.nrcan.gc.ca/starweb/geoscan/servlet.starweb?path=geoscan/fulle.web&search1=R=308471

Saturday, 2 August 2025

15TH BCPA SYMPOSIUM, COURTENAY, BRITISH COLUMBIA

SAVE THE DATE: 15th British Columbia Paleontological Symposium

Florence Filberg Centre, 411 Anderton Avenue, Courtenay, British Columbia, on the Traditional Territory of the K’ómoks First Nation, August 22-25, 2025

CELEBRATING THE PALEONTOLOGICAL BOUNTY OF THE COMOX VALLEY

The conference features over a dozen speakers in paleontology from Vancouver Island, mainland British Columbia, and beyond. 

This year, we’re celebrating Courtenay’s own Traskasaura sandrae—a 12-metre-long marine elasmosaur discovered by Mike Trask along the Puntledge River. The fossil was recently named in the Journal of Systematic Paleontology, earning international recognition.

Traskasaura sandrae is a newly identified genus and species of elasmosaurid plesiosaur, a long-necked marine reptile, discovered in British Columbia, Canada. 

The fossil, found along the Puntledge River on Vancouver Island, are from the Late Cretaceous (Santonian age), roughly 86 to 84 million years ago. Traskasaura sandrae is notable for its robust teeth, potentially adapted for crushing ammonites, and a unique mix of primitive and derived skeletal features, suggesting it was a powerful predator adapted for diving. 

As well as highlighting this significant find and honouring the amazing life of Mike Trask, the symposium has an exciting lineup of scientific presentations, hands-on workshops, a paleontology-themed art exhibition, poster presentations, and guided field trips. 

These events provide exciting opportunities to explore and celebrate the rich geological and paleontological history of Vancouver Island, bringing together world-renowned paleontologists, citizen scientists, fossil enthusiasts, researchers, artists, and the public in a vibrant exchange of ideas and inspiration.

Our Keynote Speaker is Dr. Kirk Johnson, Sant Director of the Smithsonian’s National Museum of Natural History, where he oversees the world's largest natural history collection. 

As a field paleontologist, he has led expeditions in eighteen US states and eleven countries with a research focus on fossil plants and the extinction of the dinosaurs. He is known for his scientific articles, popular books, museum exhibitions, documentaries, and collaborations with artists.

BRITISH COLUMBIA PALEONTOLOGICAL ALLIANCE (BCPA)

The British Columbia Paleontological Alliance (BCPA) is a collaborative network of organisations led by professional and citizen scientists, working to advance the science of paleontology in the province. 

Together, they promote fossil research and discovery through public education, responsible scientific collecting, and open communication among paleontologists, citizen scientists, fossil enthusiasts, researchers, and educators.

Every two years, the BCPA hosts a Paleontological Symposium, bringing together experts and the public from across Canada, North America, and beyond to share the latest research and discoveries related to British Columbia's fossil heritage.  To learn more, visit www.bcfossils.ca.

VANCOUVER ISLAND PALEONTOLOGICAL SOCIETY (HOST ORGANIZATION):

This year, the Vancouver Island Paleontological Society (VIPS) is proud to host the 15th BCPA Symposium in Courtenay, in partnership with the Courtenay and District Museum & Palaeontology Centre. 

Founded in 1992 and based in the Comox Valley, VIPS is a nonprofit society with charitable status in good standing dedicated to fostering public engagement with the natural world through field trips, workshops, symposia, and public lectures that bring science to life for the community. 

COMMUNITY SPONSORSHIP, SILENT AUCTION ITEMS & WELCOME BAGS: 

As host, the VIPS is currently welcoming sponsorship contributions and donations for the symposium's silent auction to help us offset conference costs, including printing, venue rental, catering, insurance, and participant support. We are also seeking items to include in our Welcome Bags for conference attendees, offering an excellent opportunity to showcase local businesses and community spirit. 

Sponsors will be publicly recognised at the conference, within the Courtenay and District Museum, and across our social media platforms. Tax receipts are available for eligible donations.

Sponsorship cheques made out to the Vancouver Island Paleontological Society can be mailed to 930 Sandpines Drive, Comox, BC, V9M 3V3. Attn: 15th BCPA Symposium 2025.

We would be honoured to have your support—your contribution would bring meaningful value to this exciting scientific event. If you have an item to donate to our silent auction or to include in our Welcome Bags, we would be sincerely grateful and can arrange for convenient pickup. 

To get involved or learn more, please contact us at bcpaleo.events@gmail.com—we’d love to hear from you! 

Warm regards on behalf of the 15th BCPA Organising Committee.

Friday, 1 August 2025

PALEONTOLOGY OF HAIDA GWAII

Misty shores, moss-covered forests, dappled light, and the smell of salt air—these are my memories of Haida Gwaii, a land where ancient stories are written in stone.

Formerly known as the Queen Charlotte Islands, the archipelago of Haida Gwaii lies at the far western edge of Canada, where the Pacific Ocean meets the continental shelf. These islands—steeped in the rich culture of the Haida Nation—are not only a cultural treasure but a geologic and paleontological wonderland.

Geologically, Haida Gwaii is part of Wrangellia, an exotic tectonostratigraphic terrane that also includes parts of Vancouver Island, western British Columbia, and Alaska. The region's complex geological history spans hundreds of millions of years and includes volcanic arcs, seafloor spreading, and the accretion of entire landmasses.

The Geological Survey of Canada (GSC) has long been fascinated with these remote islands. Their geologists and paleontologists have led numerous expeditions over the past century, documenting the diverse sedimentary formations and fossiliferous beds. Much of the foundation for this work was laid by Joseph Frederick Whiteaves, the GSC’s chief paleontologist in Ottawa during the late 19th century.

In 1876, Whiteaves published a pioneering paper on the Jurassic and Cretaceous faunas of Skidegate Inlet. This work firmly established the paleontological significance of the archipelago and cemented Whiteaves’ reputation as a global authority in the field. His paper, "On the Fossils of the Cretaceous Rocks of British Columbia" (GSC Report of Progress for 1876–77), remains a key early reference for West Coast palaeontology.

Later, Whiteaves would go on to describe Anomalocaris canadensis from the Burgess Shale—an “unlike other shrimp” fossil that would later be recognized as one of the most extraordinary creatures of the Cambrian explosion.

Whiteaves' early work on the fossil faunas of Haida Gwaii, particularly in the Haida Formation, created a foundation for generations of researchers to follow.

One of our most memorable fossil field trips was to the Cretaceous exposures of Lina Island, part of the Haida Formation. We considered it one of our “trips of a lifetime.” 

With great sandstone beach exposures and fossil-rich outcrops dating from the Albian to Cenomanian, Lina Island offered both scientific riches and stunning natural beauty.

Our expedition was supported and organized by John Fam, Vice Chair of the Vancouver Paleontological Society, and Dan Bowen, Chair of the British Columbia Paleontological Alliance and the Vancouver Island Palaeontological Society. 

Their dedication to fostering collaborative research and building relationships with local Haida communities was key. We were warmly welcomed, and field trips to fossil sites were arranged in partnership with community members and cultural stewards.

The Haida Formation yielded beautifully preserved specimens embedded both in bedding planes and in concretions—hard, rounded nodules that often house exceptionally preserved fossils. Among our finds were:

  • Douvilleiceras spiniferum
  • Brewericeras hulenense
  • Cleoniceras perezianum
  • Fossil cycads, evidence of rich Cretaceous plant life

These fossils offered a rare glimpse into an ancient marine ecosystem that once teemed with life. Douvilleiceras, a spiny ammonite, is particularly striking. This genus, first identified by Whiteaves from Haida Gwaii, ranges from the Middle to Late Cretaceous and has been found across Asia, Africa, Europe, and the Americas.  The Haida specimens, from the early to mid-Albian, remain among the most beautiful. It is one of my favourite ammonites of all time and I was blessed to find several good examples of that species.

All of the fossils I collected from Haida Gwaii have been skillfully prepped and donated to the Haida Gwaii Museum in Skidegate, British Columbia. It is a privilege to contribute in a small way to the scientific and cultural understanding of these extraordinary islands.

References and Further Reading:

Whiteaves, J.F. (1876). On the Fossils of the Cretaceous Rocks of British Columbia. Geological Survey of Canada, Report of Progress.

Jeletzky, J.A. (1970). Paleontology of the Cretaceous rocks of Haida Gwaii. Geological Survey of Canada, Bulletin 175.

Haggart, J.W. (1991). New Albian (Early Cretaceous) ammonites from Haida Gwaii. Canadian Journal of Earth Sciences, 28(1), 45–56.

Haggart, J.W. & Smith, P.L. (1993). Paleontology and stratigraphy of the Cretaceous Queen Charlotte Group. Geological Survey of Canada Paper 93-1A.

Carter, E.S., Haggart, J.W., & Mustard, P.S. (1988). Early Cretaceous radiolarians from Haida Gwaii and implications for tectonic setting. Micropaleontology, 34(1), 1–14.

Monday, 21 July 2025

GLIMPSING SHADOWS: OUR COASTAL WOLVES

Wolves are among the most iconic predators of the northern hemisphere—intelligent, social, and adaptable creatures that have roamed the wilds of North America for hundreds of thousands of years. 

But their story begins long before that, deep in the fossil record, when canids first began to evolve.

The ancestors of today’s wolves can be traced back more than 30 million years to the early canids of the Oligocene. One of the earliest known members of the dog family is Hesperocyon, a small, fox-like carnivore that lived in what is now North America. 

Over millions of years, these early canids diversified into various forms, including the dire wolf (Aenocyon dirus) and the gray wolf (Canis lupus), which appeared around 1 to 2 million years ago.

The gray wolf evolved in Eurasia and migrated into North America via the Bering land bridge during the Pleistocene. Once here, it quickly became a dominant predator across the continent, adapting to a wide range of environments—from the Arctic tundra to the deserts of Mexico.

Today, Canis lupus is still widely distributed across North America, although its range has contracted significantly due to human expansion, habitat loss, and historical persecution. Wolves are found in:

  • Alaska – home to the largest populations in North America.
  • The Rocky Mountains – including parts of Montana, Idaho, and Wyoming.
  • The Western Great Lakes – especially Minnesota and Wisconsin.
  • Canada – particularly British Columbia, Alberta, and the boreal forests of the northern provinces.
  • Vancouver Island – which hosts a distinct coastal population.
  • The Pacific Coast – small populations in Washington and Oregon are making a comeback.

Wolves are apex predators and essential for maintaining healthy ecosystems. They primarily prey on large ungulates such as deer, moose, elk, and caribou. 

In coastal regions, particularly on British Columbia’s Central Coast and Vancouver Island, wolves have adapted their diets to include salmon, intertidal invertebrates, and even seals. I have seen them eat their way along the tide line, scavenging whatever the sea has washed up for their breakfasts. 

These wolves have been observed swimming between islands in search of food, a behavior rarely seen in inland populations. If you explore the coast by boat, kayak or other means, you can see their footprints in the sand, telling you that you are not alone as you explore the rugged coast.

Wolves help control herbivore populations, which in turn benefits vegetation and can even influence river systems, as famously demonstrated in Yellowstone National Park after wolves were reintroduced in 1995.

Wolves on Vancouver Island

Vancouver Island is home to a small but resilient population of coastal wolves, often referred to as coastal sea wolves. These wolves are genetically and behaviorally distinct from their inland counterparts. While exact numbers fluctuate, current estimates suggest approximately 350 wolves live on Vancouver Island.

They are elusive and tend to avoid human interaction, making them difficult to study and count accurately. Much of what we know comes from the work of wildlife researchers and photographers such as Ian McAllister, whose documentation of coastal wolf behavior has been instrumental in raising awareness.

If you are looking to see more of these coastal predators, search out the work of photographers like Liron Gertsman, Ian Harland, and Sandy Sharkey, who have captured stunning images and footage of these elusive creatures in their natural habitat, along our beaches and old-growth forests. 

Despite their adaptability, wolves face a number of threats:

  • Habitat Loss and Human Encroachment: As logging and development continue to fragment wild areas on Vancouver Island, wolves are pushed into closer proximity with humans, increasing the likelihood of conflict.
  • Hunting and Trapping: Wolves are not protected under the Wildlife Act in much of British Columbia and can be hunted or trapped in many areas. Although controversial, some view wolf control as a means to support ungulate populations for hunting.
  • Poisoning and Culling: In parts of Canada, wolves have been poisoned or culled in misguided efforts to protect caribou herds, despite ecological evidence showing that habitat preservation is more critical to caribou survival.
  • Decline in Prey: As deer populations fluctuate due to climate change, human hunting pressure, and habitat alteration, wolves may face food scarcity.
  • Public Misunderstanding: Myths and negative stereotypes about wolves still persist, sometimes fueling unnecessary fear and policy decisions not based on science.
  • Wolves have been on this land longer than humans. Their long evolutionary journey has shaped them into highly specialized, intelligent animals with complex social structures. But their survival now depends on us.

On Vancouver Island and across the continent, conservation efforts, education, and science-based wildlife management are essential to ensuring wolves continue to howl in the wild for generations to come.

Vancouver Island local, Gary Allan, who runs the SWELL Wolf Education Centre in Nanaimo and is known for his extensive work in wolf advocacy and education is a good resource of up-to-date information on our coastal wolves. 

He has been educating the public about wolves since 2006, both through the Tundra Speaks Society and the education centre. Allan's work involves interacting with wolves, including his wolf-dog Tundra, and sharing his knowledge with schools, community groups, and First Nations organizations. 

Have you seen one of our coastal wolves up close and in person? It is a rare treat and for me, generally on an early morning walk. I hope we keep the balance so that the wolves live in peace and continue to thrive.

Further Reading and Resources

McAllister, Ian. The Last Wild Wolves: Ghosts of the Rain Forest. Greystone Books, 2007.

Mech, L. David, and Boitani, Luigi (eds.). Wolves: Behavior, Ecology, and Conservation. University of Chicago Press, 2003.

Fossil Canids Database – University of California Museum of Paleontology

Raincoast Conservation Foundation – https://www.raincoast.org

Friday, 18 July 2025

SPIRALING BEAUTY: AMMONITES AS INDEX FOSSILS

Argonauticeras besairei, Collection of José Juárez Ruiz.
An exceptional example of fractal building of an ammonite septum, in this clytoceratid Argonauticeras besairei from the awesome José Juárez Ruiz.

Ammonites were predatory, squid-like creatures that lived inside coil-shaped shells.

Like other cephalopods, ammonites had sharp, beak-like jaws inside a ring of squid-like tentacles that extended from their shells. They used these tentacles to snare prey, — plankton, vegetation, fish and crustaceans — similar to the way a squid or octopus hunt today.

Catching a fish with your hands is no easy feat, as I'm sure you know. But the Ammonites were skilled and successful hunters. They caught their prey while swimming and floating in the water column. Within their shells, they had a number of chambers, called septa, filled with gas or fluid that were interconnected by a wee air tube. By pushing air in or out, they were able to control their buoyancy in the water column.

They lived in the last chamber of their shells, continuously building new shell material as they grew. As each new chamber was added, the squid-like body of the ammonite would move down to occupy the final outside chamber.

They were a group of extinct marine mollusc animals in the subclass Ammonoidea of the class Cephalopoda. These molluscs, commonly referred to as ammonites, are more closely related to living coleoids — octopuses, squid, and cuttlefish) than they are to shelled nautiloids such as the living Nautilus species.

The Ammonoidea can be divided into six orders:
  • Agoniatitida, Lower Devonian - Middle Devonian
  • Clymeniida, Upper Devonian
  • Goniatitida, Middle Devonian - Upper Permian
  • Prolecanitida, Upper Devonian - Upper Triassic
  • Ceratitida, Upper Permian - Upper Triassic
  • Ammonitida, Lower Jurassic - Upper Cretaceous
Ammonites have intricate and complex patterns on their shells called sutures. The suture patterns differ across species and tell us what time period the ammonite is from. If they are geometric with numerous undivided lobes and saddles and eight lobes around the conch, we refer to their pattern as goniatitic, a characteristic of Paleozoic ammonites.

If they are ceratitic with lobes that have subdivided tips; giving them a saw-toothed appearance and rounded undivided saddles, they are likely Triassic. For some lovely Triassic ammonites, take a look at the specimens that come out of Hallstatt, Austria and from the outcrops in the Humboldt Mountains of Nevada.

Hoplites bennettiana (Sowby, 1826).
If they have lobes and saddles that are fluted, with rounded subdivisions instead of saw-toothed, they are likely Jurassic or Cretaceous. If you'd like to see a particularly beautiful Lower Jurassic ammonite, take a peek at Apodoceras. Wonderful ridging in that species.

One of my favourite Cretaceous ammonites is the ammonite, Hoplites bennettiana (Sowby, 1826). This beauty is from Albian deposits near Carrière de Courcelles, Villemoyenne, near la région de Troyes (Aube) Champagne in northeastern France.

At the time that this fellow was swimming in our oceans, ankylosaurs were strolling about Mongolia and stomping through the foliage in Utah, Kansas and Texas. Bony fish were swimming over what would become the strata making up Canada, the Czech Republic and Australia. Cartilaginous fish were prowling the western interior seaway of North America and a strange extinct herbivorous mammal, Eobaatar, was snuffling through Mongolia, Spain and England.

In some classifications, these are left as suborders, included in only three orders: Goniatitida, Ceratitida, and Ammonitida. Once you get to know them, ammonites in their various shapes and suturing patterns make it much easier to date an ammonite and the rock formation where is was found at a glance.

Ammonites first appeared about 240 million years ago, though they descended from straight-shelled cephalopods called bacrites that date back to the Devonian, about 415 million years ago, and the last species vanished in the Cretaceous–Paleogene extinction event.

They were prolific breeders that evolved rapidly. If you could cast a fishing line into our ancient seas, it is likely that you would hook an ammonite, not a fish. They were prolific back in the day, living (and sometimes dying) in schools in oceans around the globe. We find ammonite fossils (and plenty of them) in sedimentary rock from all over the world.

In some cases, we find rock beds where we can see evidence of a new species that evolved, lived and died out in such a short time span that we can walk through time, following the course of evolution using ammonites as a window into the past.

For this reason, they make excellent index fossils. An index fossil is a species that allows us to link a particular rock formation, layered in time with a particular species or genus found there. Generally, deeper is older, so we use the sedimentary layers rock to match up to specific geologic time periods, rather the way we use tree-rings to date trees. A handy way to compare fossils and date strata across the globe.

References: Inoue, S., Kondo, S. Suture pattern formation in ammonites and the unknown rear mantle structure. Sci Rep 6, 33689 (2016). https://doi.org/10.1038/srep33689
https://www.nature.com/articles/srep33689?fbclid=IwAR1BhBrDqhv8LDjqF60EXdfLR7wPE4zDivwGORTUEgCd2GghD5W7KOfg6Co#citeas

Photo: Hoplites Bennettiana from near Troyes, France. Collection de Christophe Marot

Tuesday, 15 July 2025

15TH BCPA PALEONTOLOGICAL SYMPOSIUM: COURTENAY, BRITISH COLUMBIA

SAVE THE DATE: 15th British Columbia Paleontological Symposium

Florence Filberg Centre, 411 Anderton Avenue, Courtenay, British Columbia, on the Traditional Territory of the K’ómoks First Nation, August 22-25, 2025

CELEBRATING THE PALEONTOLOGICAL BOUNTY OF THE COMOX VALLEY

The conference features over a dozen speakers in paleontology from Vancouver Island, mainland British Columbia, and beyond. 

This year, we’re celebrating Courtenay’s own Traskasaura sandrae—a 12-metre-long marine elasmosaur discovered by Mike Trask along the Puntledge River. The fossil was recently named in the Journal of Systematic Paleontology, earning international recognition.

Traskasaura sandrae is a newly identified genus and species of elasmosaurid plesiosaur, a long-necked marine reptile, discovered in British Columbia, Canada. 

The fossil, found along the Puntledge River on Vancouver Island, are from the Late Cretaceous (Santonian age), roughly 86 to 84 million years ago. Traskasaura sandrae is notable for its robust teeth, potentially adapted for crushing ammonites, and a unique mix of primitive and derived skeletal features, suggesting it was a powerful predator adapted for diving. 

As well as highlighting this significant find and honouring the amazing life of Mike Trask, the symposium has an exciting lineup of scientific presentations, hands-on workshops, a paleontology-themed art exhibition, poster presentations, and guided field trips. 

These events provide exciting opportunities to explore and celebrate the rich geological and paleontological history of Vancouver Island, bringing together world-renowned paleontologists, citizen scientists, fossil enthusiasts, researchers, artists, and the public in a vibrant exchange of ideas and inspiration.

Our Keynote Speaker is Dr. Kirk Johnson, Sant Director of the Smithsonian’s National Museum of Natural History, where he oversees the world's largest natural history collection. 

As a field paleontologist, he has led expeditions in eighteen US states and eleven countries with a research focus on fossil plants and the extinction of the dinosaurs. He is known for his scientific articles, popular books, museum exhibitions, documentaries, and collaborations with artists.

BRITISH COLUMBIA PALEONTOLOGICAL ALLIANCE (BCPA)

The British Columbia Paleontological Alliance (BCPA) is a collaborative network of organisations led by professional and citizen scientists, working to advance the science of paleontology in the province. 

Together, they promote fossil research and discovery through public education, responsible scientific collecting, and open communication among paleontologists, citizen scientists, fossil enthusiasts, researchers, and educators.

Every two years, the BCPA hosts a Paleontological Symposium, bringing together experts and the public from across Canada, North America, and beyond to share the latest research and discoveries related to British Columbia's fossil heritage.  To learn more, visit www.bcfossils.ca.

VANCOUVER ISLAND PALEONTOLOGICAL SOCIETY (HOST ORGANIZATION):

This year, the Vancouver Island Paleontological Society (VIPS) is proud to host the 15th BCPA Symposium in Courtenay, in partnership with the Courtenay and District Museum & Palaeontology Centre. 

Founded in 1992 and based in the Comox Valley, VIPS is a nonprofit society with charitable status in good standing dedicated to fostering public engagement with the natural world through field trips, workshops, symposia, and public lectures that bring science to life for the community. 

COMMUNITY SPONSORSHIP, SILENT AUCTION ITEMS & WELCOME BAGS: 

As host, the VIPS is currently welcoming sponsorship contributions and donations for the symposium's silent auction to help us offset conference costs, including printing, venue rental, catering, insurance, and participant support. We are also seeking items to include in our Welcome Bags for conference attendees, offering an excellent opportunity to showcase local businesses and community spirit. 

Sponsors will be publicly recognised at the conference, within the Courtenay and District Museum, and across our social media platforms. Tax receipts are available for eligible donations.

Sponsorship cheques made out to the Vancouver Island Paleontological Society can be mailed to 930 Sandpines Drive, Comox, BC, V9M 3V3. Attn: 15th BCPA Symposium 2025.

We would be honoured to have your support—your contribution would bring meaningful value to this exciting scientific event. If you have an item to donate to our silent auction or to include in our Welcome Bags, we would be sincerely grateful and can arrange for convenient pickup. 

To get involved or learn more, please contact us at bcpaleo.events@gmail.com—we’d love to hear from you! 

Warm regards on behalf of the 15th BCPA Organising Committee.

Monday, 14 July 2025

ROBIN O'KEEFE: VANCOUVER ISLAND'S ELASMOSAURS

The ancient seas of the Mesozoic teemed with leviathans—fanged predators, armoured fish, and sleek marine reptiles. 

Among them, the elasmosaurs were some of the most striking: long-necked plesiosaurs with serpent-like grace and formidable predatory adaptations. 

Few scientists have done more to illuminate the biology and evolution of these marine reptiles than Dr. F. Robin O’Keefe. 

A vertebrate paleontologist at Marshall University, O’Keefe’s research has ranged across marine reptile phylogeny, functional morphology, and evolutionary innovation. 

O'Keefe will be sharing his research at the 15th BCPA Symposium in Courtenay, August 22-25, 2025.

In recent years, his work has helped to reshape our understanding of elasmosaurs, particularly those found in the fossil-rich rocks of Vancouver Island, British Columbia.

Elasmosaurs (Family: Elasmosauridae) were marine reptiles that thrived during the Late Cretaceous period. Their most distinctive feature was their astonishingly long necks, which in some species accounted for over half their body length. These creatures likely hunted small fish and squid-like cephalopods, using stealth and rapid strikes to seize prey.

Though long thought of as slow-moving and awkward, research led by scientists like O’Keefe suggests a far more dynamic picture—of agile, efficient swimmers with specialized anatomical adaptations.

The Upper Cretaceous marine deposits of Vancouver Island, particularly near the Comox Valley, Courtenay, and Puntledge River areas, are renowned for their abundance of well-preserved marine fossils. These include ammonites, mosasaurs, and notably, elasmosaurs. 

The region is part of the Nanaimo Group, a geologic unit consisting of marine sediments deposited in a forearc basin as the Pacific Plate subducted beneath the North American Plate.

One of the most celebrated finds from this region is a nearly complete elasmosaur discovered by local fossil hunter Mike Trask and his daughter Heather in 1988. The fossil was later excavated and housed at the Courtenay and District Museum and Paleontology Centre. It became the focus of detailed scientific analysis—bringing together local efforts and academic expertise, including that of Robin O’Keefe.

O’Keefe's work on elasmosaurs blends detailed anatomical studies with cutting-edge phylogenetic methods and biomechanical modeling. In collaboration with other researchers and citizen scientists, O’Keefe has used elasmosaur fossils from Vancouver Island to explore big questions in marine reptile evolution: How did they swim? Why did their necks evolve to such extreme proportions? What ecological roles did they fill?

The specimen in question—unearthed near Courtenay in the 1980s and later housed at the Courtenay & District Museum—was one of the most complete marine reptile fossils ever discovered in British Columbia.

O’Keefe’s collaborative approach is also worth noting. His work on Vancouver Island elasmosaurs brought together professional paleontologists, local museums, and amateur fossil collectors. He has praised the community-based model of paleontology in British Columbia, where important discoveries often begin in the hands of citizen scientists and are then scientifically studied through institutional partnerships.

Robin O’Keefe’s work has been instrumental in reframing how scientists understand elasmosaurs—not as clumsy, bizarre sea reptiles but as highly specialized marine predators with a dynamic evolutionary history. 

His research on Vancouver Island’s elasmosaur fossils has revealed new species, resolved evolutionary puzzles, and underscored the importance of community science in paleontology. 

Through detailed anatomical work, phylogenetic analysis, and public engagement, O’Keefe continues to deepen our understanding of the ancient oceans and the creatures that ruled them.

ABOUT F. ROBIN O'KEEFE

Professor F. Robin O’Keefe received his Bachelor’s degree in honours Biology from Stanford University in 1992, and his Ph.D. in Evolutionary Biology from the University of Chicago in 2000. 

He has held a faculty position at Marshall University in West Virginia since 2006, where he has taught over two thousand undergraduates in courses ranging from human anatomy to comparative zoology and earth history. Dr. O’Keefe has successfully mentored 19 Master’s degrees, with two in progress. 

O’Keefe has published widely in journals including Science, Nature, PNAS, Systematic Biology. 

An acknowledged expert on marine reptiles from the age of dinosaurs, O’Keefe was awarded the 2013 Drinko Distinguished Research Fellowship for his work on plesiosaur reproduction. 

O’Keefe has also published on the anatomy and relationships of Permian reptiles from Africa, as well as a series of papers on the evolutionary biology of Rancho La Brea carnivores. Doctor O’Keefe has done paleontological field work in the Caribbean, Madagascar, Niger, China, Europe, South America, and throughout the American West, with current digs in the Cretaceous of Wyoming and Montana.



Saturday, 5 July 2025

FOSSIL HUNTRESS PODCAST: DEAD SEXY SCIENCE

Geeky goodness from the Fossil Huntress. If you love paleontology, you will love this stream. Dinosaurs, trilobites, ammonites—you'll find them all here!

Close your eyes & fly with me as we head out together to explore Earth's rich history written in her rock. Travel to extraordinary places, sacred sites & unearth mysteries millions of years old on the Fossil Huntress Podcast.

This stream is for those who share an enduring passion for our world's hidden treasures, its wild places & want to uncover her beauty stone by stone.

This is the story of the making of our Earth and the many wonderful creatures who have called it home.

Join in the exploration of the fascinating science of paleontology — that lens that examines ancient animals, plants & ecosystems from wee single-celled organisms to big & mighty dinosaurs. Save the stream to your favorites to listen while you drive, head out fossil collecting or snuggle in for the night!

​To listen now, visit: https://open.spotify.com/show/1hH1wpDFFIlYC9ZW5uTYVL

Friday, 4 July 2025

FOSSIL FRESHWATER SALMON FROM KAMLOOPS, BRITISH COLUMBIA

Fossilized Salmon gifted to the Huntress by John Leahy
Nestled in the interior of British Columbia, the region around Kamloops is a dry, sagebrush-studded landscape—and home to some of Canada’s most remarkable fossil fish discoveries. 

It is also home to many rattlesnakes, so if you are up that way, step lively!

Among the most fascinating fossils found here are fossilized salmonids, distant ancestors of the modern Pacific salmon that are iconic to the rivers of British Columbia today.

The fossils of interest date back to the Eocene, approximately 50 million years ago, and are primarily found in the Tranquille Formation, a part of the Kamloops Group. 

This ancient lakebed is located at McAbee Fossil Beds, near Cache Creek just west of Kamloops, and also in the nearby Driftwood Canyon and Princeton fossil beds, which together form part of British Columbia’s Eocene fossil record.

The Tranquille Formation preserves what was once a large, subtropical freshwater lake surrounded by lush forests. 

Volcanic ashfalls and fine silt periodically buried aquatic organisms and plant matter, preserving them in astonishing detail. Among the insects, plants, and other fish fossils, paleontologists have discovered fossil remains of early salmonids, the group of fish that includes modern salmon and trout.

A significant discovery was Eosalmo driftwoodensis, the earliest known fossil representative of the salmon family (Salmonidae). 

First described in 1977 by Canadian ichthyologist Mark Wilson, Eosalmo was recovered from the Driftwood Canyon site in northern BC but its relatives have been found in similar-aged formations across the province, including near Kamloops.

These fossils show that salmonids had already begun to diversify during the early Eocene. Eosalmo displays characteristics linking it to both trout and salmon, suggesting that the divergence between these lineages was already underway. Its morphology includes features like a terminal mouth, forked tail, and well-developed fins, hallmarks of active freshwater swimmers.

What’s particularly interesting about fossil salmonids in British Columbia is that they appear to have lived exclusively in freshwater during the Eocene. 

This contrasts with today’s Pacific salmon, which are famously anadromous—born in freshwater, migrating to the ocean, and returning to spawn. The fossil record suggests this sea-run lifestyle evolved later, possibly as a response to tectonic shifts and changing ocean currents in the Miocene, around 20 million years ago.

The lakes of Eocene BC, including the one preserved at McAbee, would have supported thriving fish populations in a warm, relatively stable climate. Fossil finds include not just salmonids but also bowfins, suckers, and small freshwater herring-like fish, painting a picture of a rich and diverse aquatic ecosystem.

The McAbee Fossil Beds, now designated as a provincial heritage site, continue to yield new specimens. Though public access is currently restricted to protect the integrity of the site, ongoing research continues to uncover new details about the ancient ecosystems of interior BC.

Institutions such as the Royal BC Museum and the University of Alberta have studied and preserved these fossil fish. Scientific papers by Mark Wilson, and others have helped place these finds into a broader evolutionary context, revealing how ancient fish faunas of western North America evolved over tens of millions of years.

The fossil salmon of Kamloops bones, entombed in rock for 50 million years, speak to a time when the interior of British Columbia was lush, warm, and teeming with life. 

As research continues, these fossil salmonids help illuminate the early history of a fish group vital not just to ecosystems, but to cultures and economies across the Pacific Rim.

The beauty you see here is a fossil salmon skull gifted to me by the remarkable John Leahy, who is much missed!

References:

Wilson, M. V. H. (1977). Eosalmo driftwoodensis, a new genus and species of fossil salmonid fish from the Eocene of British Columbia. Canadian Journal of Earth Sciences, 14(5), 1213–1230.

Wilson, M. V. H., & Li, G. Q. (1999). Osteology and phylogenetic relationships of Eosalmo, the earliest known salmonid fish. Canadian Journal of Earth Sciences, 36(10), 1559–1573.

Archibald, S. B., Greenwood, D. R., Smith, R. Y., Mathewes, R. W., & Basinger, J. F. (2011). Great Canadian Lagerstätten 1. Early Eocene Lagerstätten of the Okanagan Highlands (British Columbia and Washington State). Geoscience Canada, 38(4), 155–164.

McAbee Fossil Beds Provincial Heritage Site: https://www2.gov.bc.ca

If you’re ever driving through Kamloops, it’s humbling to think that beneath your feet lie the ancestors of today’s salmon—timeless travellers of BC’s ancient waterways.

Wednesday, 2 July 2025

CRUISIN THE FOSSIL FREEWAY: ALASKAN PALEONTOLOGY

Alaska, often called the "Last Frontier," is not only home to staggering wilderness and modern megafauna like bears and moose—it’s also a treasure trove of prehistoric life. 

From marine reptiles that swam in the Arctic seas to duck-billed dinosaurs that thrived in polar forests, Alaska’s fossil record paints a vivid picture of life at high latitudes during deep time.

Alaska’s geological history is a complex collage of terranes—fragmented pieces of crust that accreted onto the North American plate. This makes the state an exceptionally diverse fossil site, with deposits spanning from the Paleozoic to the Cenozoic. 

Some of the most significant fossil discoveries in Alaska come from:

  • Prince Creek Formation (Late Cretaceous): One of the northernmost dinosaur-bearing formations on Earth, located along Alaska’s North Slope.
  • Liscomb Bonebed: A hotspot for Arctic dinosaurs, discovered in the 1960s and later explored in detail by Kirk Johnson and colleagues.
  • Tuxedni Group (Jurassic): Marine invertebrates, including ammonites and bivalves, are common here.
  • Chickaloon Formation (Paleocene): Known for its beautifully preserved fossil plants, including fossilized redwoods and Metasequoia.

One of the most astonishing aspects of Alaskan fossils is the presence of polar dinosaurs. During the Late Cretaceous, the Arctic Circle was a much warmer place than it is today, but still experienced months of darkness. 

Herbivorous dinosaurs such as Edmontosaurus, Ugrunaaluk kuukpikensis (a newly named hadrosaur species from the North Slope), and Pachyrhinosaurus lived in herds in this high-latitude environment, while predators like Nanuqsaurus hoglundi, a smaller relative of T. rex, prowled the dark forests.

These animals were uniquely adapted to life in extreme conditions. Evidence from bone histology suggests that these dinosaurs had growth cycles influenced by the harsh Arctic climate—some may have hibernated or experienced slowed metabolism during the winter months.

Kirk Johnson’s research, alongside collaborators such as Tony Fiorillo and Roland Gangloff, has been central in understanding how these polar ecosystems worked. Johnson has led expeditions into the Arctic wilderness, collecting fossils and reconstructing ancient environments based on plant fossils, sedimentology, and isotope analysis.

Fossil Plants and Climate Clues

While dinosaurs grab the headlines, the fossilized flora of Alaska is equally important. Johnson is particularly renowned for his work on fossil plants, which he has used to reconstruct past climates and landscapes. In the Chickaloon Formation, for instance, fossilized leaves, cones, and wood fragments tell the story of an ancient rainforest-like environment that thrived just after the age of dinosaurs, during the Paleocene.

A paper of interest he co-authored with Dr. David J. Nichols—a distinguished paleobotanist and palynologist with the U.S. Geological Survey whose research significantly advanced the understanding of fossil pollen, spores, and Cretaceous-Tertiary boundary events. 

Over his career, Nichols became known for his expertise in using fossilized plant micro remains—such as pollen grains and spores—to reconstruct ancient ecosystems and trace climatic and environmental shifts through geologic time. 

His collaboration with Dr. Kirk Johnson on the Prince Creek Formation in northern Alaska combined his palynological skills with Johnson’s macrofossil plant research, providing a comprehensive view of Late Cretaceous polar flora and their ecological significance. 

Nichols’ meticulous work helped illuminate how vegetation patterns responded to ancient climate change and extinction events, making his contributions invaluable to studies of high-latitude paleoecology and Earth system history.

  • Johnson, K. R., & Nichols, D. J. (2008). Plant fossils from the Prince Creek Formation, North Slope, Alaska: Implications for Late Cretaceous polar ecosystems. In: "Studies on Fossils in Arctic Environments." Geological Society of America Special Paper 442, pp. 155–170. DOI:10.1130/2008.442(10)

This paper documents high-latitude Cretaceous flora, revealing that Alaska once supported lush forests, with taxa such as Metasequoia (dawn redwood), ferns, and angiosperms flourishing under a warm polar regime. These fossils help scientists understand long-term climate dynamics and serve as analogs for future warming scenarios.

Marine Reptiles and Cretaceous Oceans

In southern Alaska, Jurassic and Cretaceous marine sediments have yielded remains of ichthyosaurs, plesiosaurs, and large ammonites. These fossils suggest that Alaska’s ancient seas were home to thriving marine ecosystems. Fossil localities near the Talkeetna Mountains and along the southern coast contain rich assemblages of mollusks and marine reptiles, providing a window into life in northern marine ecosystems during the Mesozoic.

The Role of Citizen Science and Indigenous Knowledge

Much of Alaska’s fossil record has been unearthed through the combined efforts of scientists, local fossil hunters, and Indigenous knowledge holders. Collaborative research involving Native Alaskan communities, especially in regions like the North Slope, has been critical in facilitating fieldwork, protecting fossil sites, and sharing discoveries with local schools and museums.

Kirk Johnson: Bringing Alaska's Fossils to the Public

Kirk Johnson’s contributions extend beyond fieldwork. He is known for making paleontology accessible and engaging to the public. He co-authored Cruisin’ the Fossil Freeway with artist Ray Troll, a visually wild and informative tour of North American paleontology, including Alaskan fossil stops. Johnson has also hosted PBS documentaries like Making North America, in which Alaskan geology and fossils play a key role. 

To get your copy of Cruisin' the Fossil Freeway, here is the link:  https://www.amazon.ca/Cruisin-Fossil-Freeway-Kirk-Johnson/dp/1555914519

Additional publications by Johnson and his work in Alaska include:

Johnson, K. R. (2002). A North American perspective on the Cretaceous-Tertiary boundary in terrestrial settings. Geological Society of America Special Paper 361.

Fiorillo, A. R., & Gangloff, R. A., & Johnson, K. R. (2000). The role of polar dinosaurs in Mesozoic ecosystems: A synthesis. Journal of Vertebrate Paleontology, 20(3), 34A.

Alaska’s fossil record is one of the most compelling in the world, telling stories of survival and adaptation in the face of darkness, isolation, and dramatic climatic shifts. 

Whether it’s a duck-billed dinosaur enduring polar nights or a fossil leaf bearing witness to ancient greenhouse climates, each discovery contributes to our evolving understanding of Earth’s history. Thanks to scientists like Kirk Johnson and their ongoing efforts, we can explore these icy time capsules and better appreciate the deep-time legacy of the Last Frontier.