Kermode or Spirit Bear, Ursus americanus kermodei |
Sunday, 26 February 2023
BEAR LOVE: CANADA'S GREAT BEARS
Saturday, 25 February 2023
THE ART OF THE PORTAGE: BOWRON LAKES
It is day four of our holiday, with two days driving up from Vancouver to Cache Creek, past the Eocene insect and plant site at McAbee, the well-bedded Permian limestone near Marble Canyon and onto Bowron Provincial Park, a geologic gem near the gold rush town of Barkerville.
The initial draw for me, given that collecting in a provincial park is forbidden and all collecting close at hand outside the park appears to amount to a handful of crushed crinoid bits and a few conodonts, was the gorgeous natural scenery and a broad range of species extant.
It was also the proposition of padding the Bowron Canoe Circuit, a 149,207-hectare geologic wonderland, where a fortuitous combination of plate tectonics and glacial erosion have carved an unusual 116-kilometre near-continuous rectangular circuit of lakes, streams and rivers bound on all sides by snowcapped mountains.
From all descriptions, something like heaven.
The east and south sides of the route are bound by the imposing white peaks of the Cariboo Mountains, the northern boundary of the Interior wet belt, rising up across the Rocky Mountain Trench, and the Isaac Formation, the oldest of seven formations that make up the Cariboo Group (Struik, 1988).
Some 270 million-plus years ago, had one wanted to buy waterfront property in what is now British Columbia, you’d be looking somewhere between Prince George and the Alberta border. The rest of the province had yet to arrive but would be made up of over twenty major terranes from around the Pacific.
The rock that would eventually become the Cariboo Mountains and form the lakes and valleys of Bowron was far out in the Pacific Ocean, down near the equator.With tectonic shifting, these rocks drifted north-eastward, riding their continental plate, until they collided with and joined the Cordillera in what is now British Columbia. Continued pressure and volcanic activity helped create the tremendous slopes of the Cariboo Range we see today with repeated bouts of glaciation during the Pleistocene carving their final shape.
We brace our way into a headwind along the east side of the fjord-like Isaac Lake. Paddling in time to the wind, I soak up the view of this vast, deep green, ocean-like expanse that runs L-shape for nearly 38 kilometres, forming nearly half of the total circuit.
The rock we paddle past is primarily calcareous phyllite, limestone and quartzite, typical of the type locality for this group and considered upper Proterozoic (Young, 1969), the time in our geologic history between the first algae and the first multicellular animals.
It is striking how much this lake fits exactly how you might picture pristine wilderness paddling in your mind’s eye. No powerboats, no city hum, just pure silence, broken only by the sound of my paddle pulling through the water and the occasional burst of glee from one of the park’s many songbirds.
We have chosen kayaks over the more-popular canoes for this journey, as I got to experience my first taste of the handling capabilities of a canoe last year in Valhalla Provincial Park. The raised sides acted like sails and kept us off course in all but the lightest conditions.This year, Philip Torrens, Leanne Sylvest, and I were making our trek in low profile, Kevlar style.
One single & one double kayak would be our faithful companions and mode of transport. They would also be briefly conscripted into service as a bear shield later in the trip. Versatile those kayaks.
The area is home to a variety of plant life. Large sections of the forest floor are carpeted in the green and white of dogwood, a prolific ground cover we are lucky enough to see in full bloom. Moss, mushrooms and small wild grown on every available surface.
Yellow Lilies line pathways and float in the cold, clear lake water. Somewhere I read a suggestion to bring a bathing suit to the park, but at the moment, I cannot imagine lowering anything more than my paddle into these icy waters. To reach the west side of the paddling route, we must first face several kilometres portaging muddy trails to meet up with the Isaac River and then paddle rapids to grade two.
At the launch site, we meet up with two fellow kayakers, Adele and Mary of Victoria, and take advantage of their preceding us to watch the path they choose through the rapids. It has been raining in the area for forty plus days, so the water they run is high and fast. Hot on their heels, our short, thrilling ride along the Isaac River, is a flurry of paddle spray and playing around amid all the stumps, silt and conglomerate.
The accommodation gods smile kindly on us as we are pushed out from Isaac River and settle into McLeary Lake. An old trapper cabin built by local Freddie Becker back in the 1930s, sits vacant and inviting, providing a welcome place to hang our hats and dry out.From here we can see several moose, large, lumbering, peaceful animals, the largest members of the deer family, feeding on the grass-like sedge on the far shore.
The next morning, we paddle leisurely down the slower, silt-laden Cariboo River, avoiding the occasional deadhead, and make our way into the milky, glacier-fed Lanezi Lake. Like most mountainous areas, Bowron makes its own weather system and it appears you get everything in a 24-hour period.
In fact, whatever weather you are enjoying seems to change 40 minutes later; good for rain, bad for sun. Wisps of cloud that seemed light and airy only hours early have become dark. Careful to hug the shore, we are ready for a quick escape from lightning as thundershowers break.
Paddling in the rain, I notice bits of mica in the water, playing in the light and the rock change here to greywacke, argillite, phyllite and schist. Past Lanezi, we continue onto Sandy Lake, where old-growth cedars line the south-facing slopes to our left and grey limestone, shale and dolostone line the shore. Mottled in with the rock, we sneak up on very convincing stumps posing as large mammals.
Picking up the Cariboo River again, we follow it as it flows into Babcock Lake, an area edged with Lower Cambrian limestone, shale and argillite. At the time these rocks were laid down, the Earth was seeing our earliest relatives, the first chordates entering the geologic scene.
Mamma Moose, Baby Moose... Grizzly! |
Leanne remarks that she can see a moose a little ways off and that it appeared to be heading our way.
Yes, heading our way quickly with her calf in tow. I lift my lens to immortalize the moment and we three realized they were headed our way in double time because they were being chased by a grizzly bear — at top speed.
A full-grown moose can run up to fifty-five kilometres per hour, more or less neck and neck with the speed of a Grizzly. They are also strong swimmers. Had she been alone, Mamma moose would likely have tried to outswim the bear.
From where we stand we can see the water turned to white foam at their feet as they fly towards us.
We freeze bear spray in hand.
In seconds the three were upon us. Mamma moose, using home-field advantage, runs straight for us and just reaching our boats, turned 90 degrees, bolting for the woods, baby moose fast on her heels.The Grizzly, caught up in the froth of running and thrill of the kill, doesn’t notice the deke, hits the brakes at the boats and stands up, confused. Her eyes give her away.
This was not what she had planned and the whole moose-suddenly-transformed-into-human thing is giving her pause. Her head tilts back as she gets a good smell of us.
Suddenly, a crack in the woods catches her attention. Her head snaps around and she drops back on all fours, beginning her chase anew. Somewhere there is a terrified mother moose and calf hoping the distance gained is enough to keep them from being lunch. Both moose got away with the unwitting distraction we provided.
The Lakes are at an elevation of over 900 m (3000 ft) and both grizzly and black bear sightings are common. Both bear families descend from a common ancestor, Ursavus, a bear-dog the size of a raccoon who lived more than 20 million years ago. Seems an implausible lineage having just met one of the larger descendants.
While we had grumbled only hours earlier about how tired we were feeling, we now feel quite motivated and do the next two portages and lakes in good time. Aside from the gripping fear that another bear encounter is imminent, we enjoy the park-like setting, careful to scan the stands of birch trees for dark shapes now posing as stumps. Fortunately, the only wildlife we see are a few wily chipmunks, various reticent warblers and some equally shy spruce grouse.
The wind favours us now as we paddle Skoi and Spectacle Lake, even giving us a chance to use the sails we’ve rigged to add an extra knot of oomph to our efforts. Reaching the golden land of safety-in-numbers, we leap from our kayaks, happy to see the smiling faces of Mary and Adele. Making it here is doubly thrilling because it means I’m sleeping indoors tonight and I can tell the bear story with adrenaline still pumping through my veins. Tonight is all about camaraderie and the warmth of a campfire.
Gobbling down Philip’s famous pizza, Leanne impresses everyone further by telling of his adventures in the arctic and surviving a polar bear attack. This is our first starlit night without rain, a luxury everyone comments on, but quietly, not wanting to jinx it. We share a good laugh at the expense of the local common loons — both Homeo sapien sapien and Gavia immer.
Common Loon / Gavia immer |
Their cool demeanour by day is reduced to surprisingly loud, maniacal hoots and yelps with undignified flapping and flailing by night.
It seems hardly possible that these awful noises could be coming from the same birds and that this has been going for nearly 65 million years, since the end of the age of dinosaurs, as loons are one of the oldest bird families in the fossil record.
A guitar is pulled out to liven the quiet night while small offerings, sacred and scare this late in our journey, are passed around. Tonight is a celebration that we have all, both separately and together, made our way around this immense mountain-edged circuit.
Know before you go
BC Parks Bowron Lake Circuit Link: https://bcparks.ca/reserve/bowron-lake/
- Reservations may be booked up to 2 days prior to the departure date.
- All canoe circuit users must attend a mandatory orientation session (9:00 am or 12:00 noon) and visitors must report to the registration centre by the specified time.
- Visitors who have not attended their mandatory orientation session are considered no-shows. No-shows’ reservations will be given to first-come, first-served visitors. No refunds are granted for no-shows.
- Bowron Lake canoe circuit paddlers are responsible for bringing or renting their own equipment (personal flotation devices, paddles, vessels etc). Reservation transactions only include your reservation charges and user (camping) fees and do not include equipment rental. Visitors must familiarize themselves with the mandatory equipment required to paddle the circuit.
- Reservations are not transferable. Any reservation owners or holders found to be transferring or selling their reservations to another party, risk the chance that their reservation may be cancelled without a refund. If a customer can no longer use their reservation, they are encouraged to cancel their reservation so that any unused User Fees that are not forfeited as a penalty, can be automatically refunded to the credit card that was used to make the original reservation. Only the person whose name is on the reservation has access to change or cancel a reservation.
- At least one of the reservation holders ("Occupant" or "Optional Authorized Person") must be present upon arrival and during the stay. Identification may be required to keep the reservation valid.
- Reservations for the Bowron Lake canoe circuit are based on a non-refundable per vessel charge of $18.00 (plus tax) in addition to user fees ($60.00 per person for the full canoe circuit and $30.00 per person for the West Side). There is a limit of three (3) people per vessel.
- Accepted payment types include Visa, Mastercard, American Express, Visa Debit, and Mastercard Debit.
- Changes to a reservation can be made for a charge of $6.00 (plus tax), provided that space is available. No changes are permitted 28 days or less before the departure date.
- Cancellations are subject to a $6.00 (plus tax) per cancellation charge.
- Refunds – If a trip is cancelled more than 28 days before the departure date, customers receive a full refund less cancellation and non-refundable reservation charges. If cancellations are made with 28 or less days notice, no refunds apply. Transaction (reservation, change, cancellation) charges are non-refundable.
- Visitors who have not attended the mandatory orientation session they registered for are considered no-shows. No-shows' reservations will be given to first-come, first-served visitors. No refunds are granted for no-shows.
Friday, 24 February 2023
SHUSWAP NATION FOSSIL BEDS
It is one of the best local sites in the province to experience a fossil dig first-hand. It's an easy 4-hour drive from Vancouver and easily done as a rather longish day trip. I headed up this past summer with some wonderful enthusiastic crew to see how things were progressing with its development.
We were greeted on the day by two wonderful hosts from the Bonaparte Band, Gayle Pierro and Leroy Antoine. Both were very welcoming and informative, sharing the lay of the land, a bit of their history with the workings and offering us a guided tour.
As McAbee is a Heritage Site, their only request was that we stay within the marked area and trails and keep ourselves safe. Here safe means hydrated, shaded from the sun and avoiding both the resident rattlesnakes and cacti. McAbee offers an excellent opportunity for education and outreach both for locals and the larger community. It was very enjoyable to see the reactions of those visiting the site as they took in the wonderful diversity of fossil species and learning about the local history from our hosts.
The Province is committed to providing access to the site to scientists and the lay public. The direction on what happens next at McAbee is being driven by the Heritage Branch in consultation with members of the Shuswap Nation and Bonaparte Band. Bonaparte's traditional territory is located within the Shuswap Nation and includes the site where the McAbee Fossil Beds are situated.
It would be good to see McAbee take a page out of the Courtney and District Museum's playbook. You'll recall that it was the Puntledge Elasmosaur that sparked the expansion of that museum and inspired a whole host of outreach and educational programs. The Courtenay Museum has been offering paid guided tours to the elasmosaur heritage site for over a dozen years.
One of the sister sites to McAbee, the Driftwood Canyon Provincial Park Fossil Beds, offers an honours system for their site. Visitors may handle and view fossils but are asked to not take them home. Both Driftwood Canyon and McAbee are part of an arc of Eocene lakebed sites that extend from Smithers in the north, down to the fossil site of Republic Washington, in the south. The grouping includes the fossil sites of Driftwood Canyon, Quilchena, Allenby, Tranquille, McAbee, Princeton and Republic. Each of these localities provides important clues to our ancient climate.
The fossils range in age from Early to Middle Eocene. McAbee had a more temperate climate, slightly cooler and wetter than other Eocene sites to the south at Princeton, British Columbia, Republic in north-central Washington, in the Swauk Formation near Skykomish and the Chuckanut Formation of northern Washington state. The McAbee fossil beds consist of 30 metres of fossiliferous shale in the Eocene Kamloops Group.
The fossils are preserved here as impressions and carbonaceous films. We see gymnosperm (16 species); a variety of conifers (14 species to my knowledge); two species of ginkgo, a large variety of angiosperm (67 species); a variety of insects and fish remains, the rare feather and a boatload of mashed deciduous material. Nuts and cupules are also found from the dicotyledonous Fagus and Ulmus and members of the Betulaceae, including Betula and Alnus.
We see many species that look very similar to those growing in the Pacific Northwest today. Specifically, cypress, dawn redwood, fir, spruce, pine, larch, hemlock, alder, birch, dogwood, beech, sassafras, cottonwood, maple, elm and grape. If we look at the pollen data, we see over a hundred highly probable species from the site. Though rare, McAbee has also produced spiders, birds (and lovely individual feathers) along with multiple specimens of the freshwater crayfish, Aenigmastacus crandalli.
For insects, we see dragonflies, damselflies, cockroaches, termites, earwigs, aphids, leafhoppers, spittlebugs, lacewings, a variety of beetles, gnats, ants, hornets, stick insects, water striders, weevils, wasps and March flies. The insects are particularly well-preserved. Missing are the tropical Sabal (palm), seen at Princeton and the impressive Ensete (banana) and Zamiaceae (cycad) found at Eocene sites in Republic and Chuckanut, Washington.
McAbee is located just east of Cache Creek, just north of and visible from Highway 1/97. 14.5 km to be exact and exactly the distance you need to drink one large coffee and then need a washroom. You'll be pleased to know they have installed one at the site. McAbee is a site for hiking boots, hand, head and eye protection. They have a few resident rattlesnakes and prickly cacti to keep you on your toes. Keep yourself safe and well-hydrated. There will be someone to greet you and let you know if it is open to collecting or if you'll have to satisfy yourself by enjoying their interpretive offerings.
As you drive up, you'll see telltale hoodoos on the ridge to let you know you've reached the right spot. If you have a GPS, pop in these coordinates and you're on your way. 50°47.831′N 121°8.469′W.
Thursday, 23 February 2023
14TH BC PALAEONTOLOGICAL SYMPOSIUM
Tuesday, 21 February 2023
NOOTKA FOSSIL AND FIRST NATIONS HISTORY
Nootka Fossil Field Trip. Photo: John Fam |
Just off the shores of Vancouver Island, east of Gold River and south of Tahsis is the picturesque and remote Nootka Island.
This is the land of the proud and thriving Nuu-chah-nulth First Nations who have lived here always.
Always is a long time, but we know from oral history and archaeological evidence that the Mowachaht and Muchalaht peoples lived here, along with many others, for many thousands of years — a time span much like always.
While we know this area as Nootka Sound and the land we explore for fossils as Nootka Island, these names stem from a wee misunderstanding.
Just four years after the 1774 visit by Spanish explorer Juan Pérez — and only a year before the Spanish established a military and fur trading post on the site of Yuquot — the Nuu-chah-nulth met the Englishman, James Cook.
Captain Cook sailed to the village of Yuquot just west of Vancouver Island to a very warm welcome. He and his crew stayed on for a month of storytelling, trading and ship repairs. Friendly, but not familiar with the local language, he misunderstood the name for both the people and land to be Nootka. In actual fact, Nootka means, go around, go around.
Two hundred years later, in 1978, the Nuu-chah-nulth chose the collective term Nuu-chah-nulth — nuučaan̓uł, meaning all along the mountains and sea or along the outside (of Vancouver Island) — to describe themselves.It is a term now used to describe several First Nations people living along western Vancouver Island, British Columbia.
It is similar in a way to the use of the United Kingdom to refer to the lands of England, Scotland and Wales — though using United Kingdom-ers would be odd. Bless the Nuu-chah-nulth for their grace in choosing this collective name.
An older term for this group of peoples was Aht, which means people in their language and is a component in all the names of their subgroups, and of some locations — Yuquot, Mowachaht, Kyuquot, Opitsaht. While collectively, they are the Nuu-chah-nulth, be interested in their more regional name should you meet them.
But why does it matter? If you have ever mistakenly referred to someone from New Zealand as an Aussie or someone from Scotland as English, you have likely been schooled by an immediate — sometimes forceful, sometimes gracious — correction of your ways. The best answer to why it matters is because it matters.
Each of the subgroups of the Nuu-chah-nulth viewed their lands and seasonal migration within them (though not outside of them) from a viewpoint of inside and outside. Kla'a or outside is the term for their coastal environment and hilstis for their inside or inland environment.
It is to their kla'a that I was most keen to explore. Here, the lovely Late Eocene and Early Miocene exposures offer up fossil crab, mostly the species Raninid, along with fossil gastropods, bivalves, pine cones and spectacularly — a singular seed pod. These wonderfully preserved specimens are found in concretion along the foreshore where time and tide erode them out each year.
Five years after Spanish explorer Juan Pérez's first visit, the Spanish built and maintained a military post at Yuquot where they tore down the local houses to build their own structures and set up what would become a significant fur trade port for the Northwest Coast — with the local Chief Maquinna's blessing and his warriors acting as middlemen to other First Nations.
Following reports of Cook's exploration British traders began to use the harbour of Nootka (Friendly Cove) as a base for a promising trade with China in sea-otter pelts but became embroiled with the Spanish who claimed (albeit erroneously) sovereignty over the Pacific Ocean.
Dan Bowen searching an outcrop. Photo: John Fam |
George Vancouver on his subsequent exploration in 1792 circumnavigated the island and charted much of the coastline. His meeting with the Spanish captain Bodega y Quadra at Nootka was friendly but did not accomplish the expected formal ceding of land by the Spanish to the British.
It resulted however in his vain naming the island "Vancouver and Quadra." The Spanish captain's name was later dropped and given to the island on the east side of Discovery Strait. Again, another vain and unearned title that persists to this day.
Early settlement of the island was carried out mainly under the sponsorship of the Hudson's Bay Company whose lease from the Crown amounted to 7 shillings per year — that's roughly equal to £100.00 or $174 CDN today. Victoria, the capital of British Columbia, was founded in 1843 as Fort Victoria on the southern end of Vancouver Island by the Hudson's Bay Company's Chief Factor, Sir James Douglas.
With Douglas's help, the Hudson's Bay Company established Fort Rupert on the north end of Vancouver Island in 1849. Both became centres of fur trade and trade between First Nations and solidified the Hudson's Bay Company's trading monopoly in the Pacific Northwest.The settlement of Fort Victoria on the southern tip of Vancouver Island — handily south of the 49th parallel — greatly aided British negotiators to retain all of the islands when a line was finally set to mark the northern boundary of the United States with the signing of the Oregon Boundary Treaty of 1846. Vancouver Island became a separate British colony in 1858. British Columbia, exclusive of the island, was made a colony in 1858 and in 1866 the two colonies were joined into one — becoming a province of Canada in 1871 with Victoria as the capital.
Dan Bowen, Chair of the Vancouver Island Palaeontological Society (VIPS) did a truly splendid talk on the Fossils of Nootka Sound. With his permission, I have uploaded the talk to the ARCHEA YouTube Channel for all to enjoy. Do take a boo, he is a great presenter. Dan also graciously provided the photos you see here. The last of the photos you see here is from the August 2021 Nootka Fossil Field Trip. Photo: John Fam, Vice-Chair, Vancouver Paleontological Society (VanPS).
Know Before You Go — Nootka Trail
The Nootka Trail passes through the traditional lands of the Mowachaht/Muchalat First Nations who have lived here since always. They share this area with humpback and Gray whales, orcas, seals, sea lions, black bears, wolves, cougars, eagles, ravens, sea birds, river otters, insects and the many colourful intertidal creatures that you'll want to photograph.
This is a remote West Coast wilderness experience. Getting to Nootka Island requires some planning as you'll need to take a seaplane or water taxi to reach the trailhead. The trail takes 4-8 days to cover the 37 km year-round hike. The peak season is July to September. Permits are not required for the hike.
Access via: Air Nootka floatplane, water taxi, or MV Uchuck III
- Dan Bowen, VIPS on the Fossils of Nootka: https://youtu.be/rsewBFztxSY
- https://www.thecanadianencyclopedia.ca/en/article/sir-james-douglas
- file:///C:/Users/tosca/Downloads/186162-Article%20Text-199217-1-10-20151106.pdf
- Nootka Trip Planning: https://mbguiding.ca/nootka-trail-nootka-island/#overview
Monday, 20 February 2023
UNESCOCERATOPS KOPPELHUSAE BY JULIUS CSOTONYI
Unescoceratops koppelhusae, Julius Csotonyi |
The Royal Tyrrell Museum of Palaeontology, named in honour of Joseph Burr Tyrrell, is a palaeontology museum and research facility in Drumheller, Alberta, Canada.
This jaw is the holotype specimen of this small leptoceratopsid dinosaur. Only a handful of isolated fossils have been found from this species, including a jaw that is the holotype specimen now in collections at the Royal Tyrell.
The Royal Tyrrell Museum of Palaeontology, named in honour of Joseph Burr Tyrrell, is a palaeontology museum and research facility in Drumheller, Alberta, Canada.
Unescoceratops koppelhusae, RTMP Collections |
The Cleveland Museum of Natural History's Michael Ryan and David Evans of the Royal Ontario Museum in Toronto recently determined that the specimen was a new genus and species.
Unescoceratops is a genus of leptoceratopsid ceratopsian dinosaurs known from the Late Cretaceous (about 76.5-75 million years ago) of Alberta, Canada. Unescoceratops is thought to have been between one and two meters long and less than 91 kilograms. A plant-eater, its teeth were the roundest of all Leptocertopsids.
Dinosaur Provincial Park, Alberta, Canada |
In addition to its particularly beautiful scenery, Dinosaur Provincial Park – located at the heart of the province of Alberta's badlands – is unmatched in terms of the number and variety of high-quality specimens.
To date, they represent more than 44 species, 34 genera and 10 families of dinosaurs, dating back 75-77 million years. This provides us with remarkable insight into life millions of years ago.
The park contains exceptional riparian habitat features as well as badlands of outstanding aesthetic value.
The creamy honey, beige and rust coloured hills around the fossil locality are outstanding examples of major geological processes and fluvial erosion patterns in semi-arid steppes — think glorious!The genus is named to honour the UNESCO World Heritage Site designation for the locality where the specimen was found and from the Greek “ceratops,” which means 'horned face'.
Dr Michael Ryan explained that he meant to honour UNESCO's efforts to increase understanding of natural history sites around the world.
© Julius T. Csotonyi An illustration of Unescoceratops koppelhusae, a plant-eating dinosaur from the Late Cretaceous period that lived approximately 75 million years ago shared with his gracious permission.
ABOUT THE ARTIST
Dr. Julius Csotonyi is a Vancouver-based scientific illustrator and natural history fine artist. He is a featured paleoartist on Season One and Season Two of BC's Fossil Bounty. Julius has a scientific background in ecology (MSc) and microbiology (PhD) which has taken him to study sensitive ecosystems, from sand dunes in the Rocky Mountain parks to hydrothermal vents at the bottom of the Pacific Ocean.
These experiences have fuelled his strong resolve to work toward preserving our Earth’s biota. Painting biological subjects is one means that he uses to both enhance public awareness of biological diversity and to motivate concern for its welfare.
He paints murals and panels that have appeared in numerous museums including the Smithsonian’s National Museum of Natural History, press release images for scientific publications, books, stamp sets — including the outstanding 2018 “Sharks of Canada” set for Canada Post — and coins for the Royal Canadian Mint. To view more of Julius Csotonyi's exquisite work visit: https://csotonyi.com/
Sunday, 19 February 2023
COLINOCERAS TARRANTENSE
Ammonite expert Bill Cobban used this collection to describe many Texas Cretaceous ammonites species including this species from Tarrant County, Arlington, Texas.
He was a surveyor by training and kept incredibly detailed notes on the context of his fossils.
Conlin donated his collection to the USGS and we have learned much by studying it along with other specimens from the Lone Star State. Almost a quarter of Texas is covered by Cretaceous strata, much of it fossiliferous. If we stepped back 95 million years, the world and what we now call Texas was a very different place.
95 million years ago, during the Late Cretaceous, a shallow seaway separated North America into separate eastern and western landmasses. We have a pretty complete picture in the fossil record of the western groups of species but relatively little in comparison to their cohorts in the east.
At the time this fellow was swimming our ancient seas, he was sharing the Earth with carnivorous dinosaurs, duck-billed dinosaurs, mammals, crocodilians, turtles, a variety of amphibians, prehistoric bony fish, oddly prolific sea cucumbers, various invertebrates and plants. Many of these sites are just being written up now and contain new species just being discovered.
During the Late Cretaceous Period, a shallow seaway separated North America into separate eastern and western landmasses. The Woodbine Formation in Texas preserves a rare fossil record of this time for the east, but many of these fossils are isolated and incomplete, making interpretations more difficult. Preliminary excavations at the Arlington Archosaur Site (AAS) are providing hints at a more complete ecosystem, preserving similar patterns of change to what we see in the west.
The Arlington Archosaur site contains an extraordinary diversity, abundance, and quality of fossil material, preserving one of the most complete terrestrial ecosystems known for this time period and area.
These outcrops and the fossils they contain have a lot to tell us about Late Cretaceous life in the east. Over 2200 individual specimens have been found belonging to numerous groups including carnivorous dinosaurs, duck-billed dinosaurs, crocodilians, turtles, mammals, amphibians, sharks, bony fish, invertebrates, and plants.
Many of the fossils found here represent brand new species and studying these fossils will help to establish the geographic and environmental forces that shaped Cretaceous ecosystems in North America by providing a necessary comparison to the fossil record of the west.
Saturday, 18 February 2023
DANCERS OF THE DEEP: JELLYFISH
Her brethren are playing in the waters of the deep all over the world, from surface waters to our deepest seas — and they are old. They are some of the oldest animals in the fossil record.
Jellyfish and sea jellies are the informal common names given to the medusa-phase or adult phase of certain gelatinous members of the subphylum Medusozoa, a major part of the phylum Cnidaria — more closely related to anemones and corals.
Jellyfish are not fish at all. They evolved millions of years before true fish. The oldest conulariid scyphozoans appeared between 635 and 577 million years ago in the Neoproterozoic of the Lantian Formation, a 150-meter-thick sequence of rocks deposited in southern China.
Others are found in the youngest Ediacaran rocks of the Tamengo Formation of Brazil, c. 505 mya, through to the Triassic. Cubozoans and hydrozoans appeared in the Cambrian of the Marjum Formation in Utah, USA, c. 540 million years ago.
I have seen all sorts of their brethren growing up on the west coast of Canada. I have seen them in tide pools, washed up on the beach and swam amongst thousands of Moon Jellyfish while scuba diving in the Salish Sea. Their movement in the water is marvellous.
In the Kwak̓wala language of the Kwakiutl or Kwakwaka'wakw, speakers of Kwak'wala, of the Pacific Northwest, jellyfish are known as ǥaǥisama.
The watercolour ǥaǥisama you see here in dreamy pink and white is but one colour variation. They come in blue, purple, orange, yellow and clear — and are often luminescent. They produce light by the oxidation of a substrate molecule, luciferin, in a reaction catalyzed by a protein, luciferase.
Friday, 17 February 2023
SPLIT SAIL SPINOSAURID
Thursday, 16 February 2023
BLUE JAY: KWASK'WAS
Wednesday, 15 February 2023
CRETACEOUS FOSSIL OUTCROPS NEAR NANAIMO ON VANCOUVER ISLAND
Steller's Jay, Cyanocitta stelleri |
The quarry is no longer active as such though there is a busy little gravel quarry a little way down the road closer to Ammonite falls near Benson Creek Falls.
Today it is an active motocross site and remains one of the classic localities of the Nanaimo Group. We find well-preserved nautiloids and ammonites — Canadoceras, Pseudoschloenbachia, Epigoniceras — the bivalves — Inoceramus, Sphenoceramus— gastropods, and classic Nanaimo Group decapods — Hoploparia, Linuparus. We also find fossil fruit and seeds which tell the story of the terrestrial history of Vancouver Island.
Upper Cretaceous Haslam Formation Motocross Pit near Brannen Lake |
While he lived on Vancouver Island, he was an active member of the VanPS back when I was Chair. Several of the best joint VIPS/VanPS paleontological expeditions were planned with or instigated by his passion for fossils. I tip my hat to him for his passion and shared love of all things paleo.
John grew up 15 minutes from the motocross locality and used to collect there a few times a week with his father. John has wonderful parents and since marrying his childhood sweetheart, the amazing Grace, those excellent genetics, curiosity and love of fossils are now being passed to a new generation. It's lovely to see John and Grace continuing tradition with two boys of their own.
I met John way back then and did an overnight at his parent's house the Friday before a weekend field trip to Jurassic Point. It was a joy to have him walk me through his collections and tell his stories from earlier years. After learning about the site from John, I headed up to the Motocross Pit with my Uncle Doug. He was a delightful man who grew up on the coast and had explored much of it but not the fossil site just 10-minutes from his home. It was wonderful to walk through time with him so many years ago and then again solo this past year with sadness in my belly that one of the best I've ever known has left this Earth.
Upper Cretaceous Haslam Formation Motocross Pit near Brannen Lake |
The rocks we find here were laid down south of the equator as small, tropical islands. They rode across the Pacific heading north and slightly east over the past 80 million years to where we find them today.
Jim Haggart and Peter Ward have done much to increase our understanding of the molluscan fauna of the Nanaimo Group. Personally, both personify the charming Indiana Jones school of rugged manly palaeontologists you picture in popular film. Professionally, their singular contributions and collaborative efforts have helped shape our understanding of the correlation of Nanaimo Group fauna to those we find in the Gulf Islands of British Columbia and down in the San Juan Islands of Washington State.
Their work builds on the work of Usher (1952), Matsumoto (1959a, 1959b) and Mallory (1977). A healthy nod goes out to the work of Muller and Jeletzky (1970) for untangling the lithostratigraphic and biostratigraphic foundation for our knowledge of the Nanaimo Group.
Candoceras yokoyama, Photo: John Fam, VanPS |
Fancy some additional reading? Check out a paper published in the Journal of Paleontology back in 1989 by Haggard and Ward on new Nanaimo Group Ammonites from British Columbia and Washington State.
In it, they look at the ammonite species Puzosia (Mesopuzosia) densicostata Matsumoto, Kitchinites (Neopuzosia) japonicus Spath, Anapachydiscus cf. A. nelchinensis Jones, Menuites cf. M. menu (Forbes), Submortoniceras chicoense (Trask), and Baculites cf. B. boulei Collignon are described from Santonian--Campanian strata of western Canada and northwestern United States.
Stratigraphic occurrences and ranges of the species are summarized and those taxa important for correlation with other areas in the north Pacific region and Late Cretaceous ammonite fauna of the Indo-Pacific region. Here's the link: https://www.jstor.org/stable/1305358?seq=1
Peter Ward is a prolific author, both of scientific papers and more popularized works. I highly recommend his book Gorgon: Paleontology, Obsession, and the Greatest Catastrophe in Earth's History. It is an engaging romp through a decade's research in South Africa's Karoo Desert.
Photo: Candoceras yokoyamai from Upper Cretaceous Haslam formation (Lower Campanian) near Nanaimo, British Columbia. One of the earliest fossils collected by John Fam (1993). Prepared using only a cold chisel and hammer. Photo & collection of John Fam, VIPS.
Tuesday, 14 February 2023
HEROES, VILLANTS AND TYRANTS: HAPPY VALENTINE'S TO CAPTAIN JAMES COOK
Captain George Vancouver's Commission to Lieutenant |
- The Commission, dated July 10, 1783, appointing him fourth Lieutenant of the HMS Fame (this is the official document confirming a field commission given to him May 7, 1782)
- A letter to James Sykes (a Navy Agent in London) written from the ship Discovery (not the same Discovery used by Cook) while in Nootka Sound near the end of Vancouver’s exploration of the West Coast, October 2, 1794. Vancouver states that they have determined that the Northwest Passage does not exist, which was one of the main goals of his voyage
- A letter to James Sykes written from Vancouver’s home in Petersham, England, after his voyage, October 26, 1797