Sunday, 20 September 2015
ERBENOCHILE ERBENI
Family Odontopleuridae, Odontopleurid trilobite from the Lower Devonian, Emsian, 408 to 393 MYA, Bou Tiskaouine Formation, Hamar l”Aghdad Limestones, Taharajat, Oufaten, Djebel Issoumour
Friday, 28 August 2015
EARLY EXPLORERS ON HORNBY ISLAND
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| 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
Saturday, 22 August 2015
Sunday, 2 August 2015
Saturday, 1 August 2015
TRIASSIC PAPER CLAMS FROM PINE PASS NEAR TUMBLER RIDGE
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| Triassic Paper clams, Pardonet Formation |
Here, in outcrops of the Pardonet Formation, the remains of once-living bivalves called paper clams—or “flat clams”—paint a vivid picture of life in the Late Triassic seas.
During the Triassic, roughly 237–201 million years ago, these delicate-shelled bivalves of the genus Moinotis, specifically Moinotis subcircularis, thrived in shallow marine environments.
Their thin, flattened shells resemble wafer-like sheets, earning them the common name “paper clams.”
Despite their fragile appearance, they were ecologically tough, colonizing vast seafloor regions after the Permian-Triassic mass extinction—Earth’s most catastrophic biodiversity crisis. In the wake of devastation, paper clams became pioneers in new marine ecosystems, spreading widely across the Triassic world.
At Pine Pass, the Pardonet Formation captures this resilience in stone. The strata—composed mainly of silty shales and fine-grained sandstones—represent an ancient seabed deposited along the western margin of Pangea. These rocks are part of the larger Western Canada Sedimentary Basin and are well known for their rich fossil assemblages, including ammonoids, conodonts, and marine reptiles. Yet, among these Triassic relics, it’s the paper clams that often dominate.
A short scramble up the rocky slope near the highway reveals bedding planes glittering with thousands of tiny, overlapping shells. They lie perfectly preserved, their paper-thin forms cemented into the matrix as though frozen in a whisper of time. Each shell records a pulse of ancient life in a warm, shallow sea teeming with invertebrates.
Our field stop at Pine Pass was a spontaneous detour en route to a paleontological conference in nearby Tumbler Ridge—a region equally famed for its dinosaur tracks and marine fossils. What was meant to be a quick roadside break became a fossil feast.
Within minutes, we were crouched among the rocks, gently tracing our fingers over Moinotis subcircularis—delicate, symmetrical, and as hauntingly beautiful as the day they settled on the Triassic seafloor.
Sunday, 26 July 2015
Wednesday, 22 July 2015
Thursday, 16 July 2015
ICHTHYOSAUR EVOLUTION
They were particularly abundant in the later Triassic and early Jurassic periods before being replaced as a premier aquatic predator by another marine reptilian group, the Plesiosauria, in the later Jurassic and Cretaceous periods.
Wednesday, 15 July 2015
KELP FORESTS AND CARBON SINKS
Some pieces stretch for meters, still tangled with small shells and bits of driftwood, while others hold tight, bulbous floats that once kept them buoyant in the underwater forests just offshore.
When the tide recedes, the air fills with the unmistakable scent of iodine and salt—an ancient perfume carried by the sea.
Kelp is a brown alga, part of the group Phaeophyceae, which evolved roughly 150 to 200 million years ago.
While kelp itself doesn’t fossilize easily (it’s soft-bodied and decomposes quickly), its ancient lineage can be traced through molecular and microfossil evidence. The earliest relatives of kelp likely appeared in the Jurassic seas, when dinosaurs ruled the land and the oceans teemed with ammonites.
Microscopic spores and chemical biomarkers in sedimentary rocks tell scientists that brown algae were already photosynthesizing in shallow coastal waters long before the first mammals appeared.
Giant kelp, Macrocystis pyrifera, holds the title for the fastest-growing marine organism on Earth—it can shoot up more than half a meter a day under ideal conditions!These towering underwater forests provide shelter and food for thousands of marine creatures, from tiny snails to sea otters, who wrap themselves in the fronds to sleep without drifting away.
Back when I used to scuba drive a lot around Vancouver Island, they were one of my favourite places to explore as those underwater forests were teeming with life.
If you’re beachcombing in British Columbia, Alaska, or California, you might find bull kelp, Nereocystis luetkeana, recognizable by its long, whip-like stipe and single round float. It’s edible and surprisingly tasty. The blades can be dried and used like seaweed chips, while the bulb can be sliced thin and pickled—an oceanic delicacy with a salty, citrusy crunch.
Other edible seaweeds you might encounter include sugar kelp, Saccharina latissima, which has a slightly sweet flavor, and ribbon kelp, Alaria marginata, often used in soups and salads.
On the foreshore near where I live on Vancouver Island, we have loads of sea lettuce. Sea lettuce, Ulva spp., is one of the ocean’s most vibrant and inviting greens—a delicate, translucent seaweed that looks like bright green tissue paper fluttering in the tide.
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| Sea Otter in a Kelp Bed |
Its thin, ruffled fronds are only a few cells thick, soft to the touch, and often cling to rocks, shells, or docks in intertidal zones where saltwater and freshwater mingle.
Unlike the giant brown kelps that form towering underwater forests, sea lettuce is part of the green algae group (Chlorophyta), sharing pigments more closely related to land plants.
It grows worldwide in temperate and tropical waters and thrives wherever nutrient-rich water flows—estuaries, tide pools, and shallow bays. When the tide goes out, you might see it draped over rocks like sheets of emerald silk, drying slightly in the sun and releasing a faint, oceanic scent.
Sea lettuce is entirely edible and a favourite among foragers and coastal chefs. Fresh from the sea, it has a mild, slightly salty flavour with a hint of sweetness—similar to spinach or nori. It can be eaten raw in salads, lightly fried until crisp, or dried into flakes and used as a natural salt substitute.
In many coastal cultures, from Ireland to Japan, Ulva has long been part of traditional cuisine. It’s also rich in vitamins A, C, and B12, along with iron and calcium—proof that sea greens can be as nutritious as they are beautiful. When my little sister was living in County Cork, she shared pictures of folk bathing in tubs of icy sea water and seaweed as a briny health spa treatment.
From a scientific perspective, sea lettuce plays an important ecological role. It provides shelter for small marine creatures like snails, shrimp, and juvenile fish, and it helps absorb excess nutrients from the water, which can help reduce harmful algal blooms.
However, when too many nutrients enter the ocean—often from agricultural runoff—sea lettuce can grow explosively, creating dense “green tides” that blanket shorelines.
Its lineage stretches deep into the fossil record as well. While soft-bodied algae like Ulva rarely fossilize, green algal relatives appear in rocks over 1.6 billion years old, making them some of Earth’s earliest photosynthesizers.
Beyond their culinary and ecological roles, kelp forests act as powerful carbon sinks, pulling CO₂ from the atmosphere and storing it in the deep ocean. They also buffer coastlines from storms and provide nurseries for fish populations that support global fisheries.
As you stroll the shoreline and your toes brush against that slippery tangle of golden-brown ribbons, remember—you’re touching the living descendant of an ancient lineage that’s been swaying in Earth’s oceans since the age of dinosaurs—beautiful, ancient and tasty!
Tuesday, 14 July 2015
Monday, 29 June 2015
GULLS ON THE FORESHORE: T'SIK'WI
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| A gull cries in protest at not getting his share of a meal |
Wednesday, 3 June 2015
Monday, 25 May 2015
Saturday, 23 May 2015
CRETACEOUS CAPILANO RIVER
From downtown Vancouver, drive through Stanley Park heading north over the Lion’s Gate Bridge. Take the North Vancouver exit toward the ferries. Turn right onto Taylor Way and then right again at Clyde Avenue. Look for the Park Royal Hotel. Park anywhere along Clyde Avenue.
From Clyde Avenue walk down the path to your left towards the Capilano River. Watch the water level and tread cautiously as it can be slippery if there has been any recent rain. Look for beds of sandstone about 200 meters north of the private bridge and just south of the Highway bridge. The fossil beds are just below the Whytecliff Apartment high rises.
You will see some exposed shale in the area. It does not contain fossil material. The fossils occur only in the sandstone. Interesting, but again, not fossiliferous are the many granitic boulders and large boulders of limestone which may have been brought down by glaciers from as far away as Texada Island. Cretaceous plant material (and modern material) found here include Poplar (cottonwood) Populus sp. Bigleaf Maple, Acer machphyllum, Alder, Alnus rubra, Buttercup Ranvuculus sp., Epilobrium, Red cedar, Blackberry and Sword fern.
Monday, 11 May 2015
LINGULA ANATINA: PRIMATIVE BRACHIOPOD
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| Lingula anatina — a primitive brachiopod |
Brachiopods are marine invertebrates with a stalk and two shells connected along a hinge. They are often confused with bivalves such as clams.
Bivalves have shells on the sides of their bodies. Brachiopods have shells on the top and bottom. As a result, the plane of symmetry in a bivalve runs along the hinge while it runs perpendicular to the hinge in brachiopods.
Lingula forms are regarded as the most primitive brachiopods and represent the first certain appearance of brachiopods in the fossil records dating back 530 million years.
Their shells do not have any locking mechanisms. Instead, they rely on complex musculature to move their shells. They are the first known examples of animal biomineralisation — a process whereby living organisms stiffen or harden tissues with minerals. Their shells are composed of calcium phosphate and collagen fibres, characters shared only by evolutionarily distant vertebrates.
Lingulid brachiopods had changed so little in appearance since the Silurian, 443-419 million years ago, they are referred to as living fossils — a term bestowed upon them by Charles Darwin himself.
Photo: Wilson44691 - Own work, Public Domain, https://commons.wikimedia.org/w/index.php?curid=8624418
Tuesday, 5 May 2015
PLANNING YOUR NEXT STAYCATION: HORNBY ISLAND
Sunday, 19 April 2015
TAKING IN THE VIEW
Have you ever wondered about the colors you see in these moments? What sunlight actually is? Yes, it's light from the Sun but so much more than that. Sunlight is both light and energy. Once it reaches Earth, we call this energy, "insolation," a fancy term for solar radiation. The amount of energy the Sun gives off changes over time in a never ending cycle. Solar flares (hotter) and sunspots (cooler) on the Sun's surface impact the amount of radiation headed to Earth. These periods of extra heat or extra cold (well, colder by Sun standards...) can last for weeks, sometimes months.
The beams that reach us and warm our skin are electromagnetic waves that bring with them heat and radiation, by-products of the nuclear fusion happening as hydrogen nuclei shift form to helium. Our bodies convert the ultraviolet rays to Vitamin D. Plants use the rays for photosynthesis, a process of converting carbon dioxide to sugar and using it to power their growth (and clean our atmosphere!) That process looks something like this: carbon dioxide + water + light energy -->glucose + oxygen = 6 CO2(g) + 6 H2O + photons → C6H12O6(aq) + 6 O2(g) Photosynthetic organisms convert about 100–115 thousand million metric tonnes of carbon to biomass each year, about six times more power than used my us hoomins.
We've yet to truly get a handle on the duality between light as waves and light as photons. Light fills not just our wee bit of the Universe but the cosmos as well, bathing it in the form of cosmic background radiation that is the signature of the Big Bang.
Once those electromagnetic waves leave the Sun headed for Earth, they reach us in a surprising eight minutes. We experience them as light mixed with the prism of beautiful colors. But what we see is actually a trick of the light. As rays of white sunlight travel through the atmosphere they collide with airborne particles and water droplets causing the rays to scatter. We see mostly the yellow, orange and red hues (the longer wavelengths) as the blues and greens (the shorter wavelengths) scatter more easily and get bounced out of the game rather early.
Tuesday, 14 April 2015
Monday, 16 March 2015
Sunday, 15 March 2015
Sunday, 22 February 2015
Saturday, 7 February 2015
EOCENE FOSSIL FIELD TRIP
Many of these finds can now be seen at museums in Washington State. While less abundant, evidence of the animals that called this ancient swamp home are also found here. Rare bird, reptile, and mammal tracks have been immortalized in the soft muds along ancient riverways.
Wednesday, 4 February 2015
Monday, 19 January 2015
FERGUSONITES HENDERSONAE
A few years ago, I had the very great honour of having a new species of ammonite named after me by paleontologist, Louse Longridge.
Meet Fergusonites hendersonae, a Late Hettangian ammonite from the Taseko Lake area of British Columbia, high up in the Canadian Rockies.
He looks a wee bit like the Cadoceras comma we find in the Mysterious Lake Formation at Harrison Lake but a wee bit thinner and smaller.
Friday, 9 January 2015
Tuesday, 6 January 2015
CAPILANO RIVER FOSSIL TRIP
- Alder
- Unidentified Bark
- Poplar (cottonwood) Populus sp.
- Bigleaf maple Acer machphyllum
- Alder Alnus rubra
- Buttercup Ranvuculus sp.
- Epilobrium
- Red cedar
- Blackberry
- Sword fern



























