Tommyplodocus
@tommyplodocus.bsky.social
@nataliajagielska.bsky.social has been supporting a great cause with Doodles for Hong Kong, even sketching my favourite Cambrian arthropod, Opabinia regalis.
January 3, 2026 at 2:33 PM
@nataliajagielska.bsky.social has been supporting a great cause with Doodles for Hong Kong, even sketching my favourite Cambrian arthropod, Opabinia regalis.
For the last #FossilFriday of 2025, I’m sharing my favourite group of armoured fishes. Placoderms were an ancient group of fishes that lived during the Silurian and Devonian, between 430 and 360 million years ago. These examples show just how varied their morphology was.
December 26, 2025 at 2:00 PM
For the last #FossilFriday of 2025, I’m sharing my favourite group of armoured fishes. Placoderms were an ancient group of fishes that lived during the Silurian and Devonian, between 430 and 360 million years ago. These examples show just how varied their morphology was.
Wishing everyone a Happy Christmas!
Behind door 25 of the Fossil Advent Calendar is Lambeosaurus lambei. This example was a juvenile that lived 75 million years ago during the Cretaceous period and was found in Alberta, Canada.
Behind door 25 of the Fossil Advent Calendar is Lambeosaurus lambei. This example was a juvenile that lived 75 million years ago during the Cretaceous period and was found in Alberta, Canada.
December 25, 2025 at 2:40 PM
Wishing everyone a Happy Christmas!
Behind door 25 of the Fossil Advent Calendar is Lambeosaurus lambei. This example was a juvenile that lived 75 million years ago during the Cretaceous period and was found in Alberta, Canada.
Behind door 25 of the Fossil Advent Calendar is Lambeosaurus lambei. This example was a juvenile that lived 75 million years ago during the Cretaceous period and was found in Alberta, Canada.
Christmas Eve and day 24 of the Fossil Advent Calendar! Behind today’s door is Bothriolepis canadensis, a placoderm that lived 375 million years ago during the Devonian Period. This example was found in Quebec, Canada.
Come back tomorrow for one last door!
Come back tomorrow for one last door!
December 24, 2025 at 2:35 PM
Christmas Eve and day 24 of the Fossil Advent Calendar! Behind today’s door is Bothriolepis canadensis, a placoderm that lived 375 million years ago during the Devonian Period. This example was found in Quebec, Canada.
Come back tomorrow for one last door!
Come back tomorrow for one last door!
Day 23 of the Fossil Advent Calendar is also #TrilobiteTuesday! Thysanopeltis speciosa was a trilobite that lived 389 million years ago during the Devonian period. This example was found in Morocco!
December 23, 2025 at 3:46 PM
Day 23 of the Fossil Advent Calendar is also #TrilobiteTuesday! Thysanopeltis speciosa was a trilobite that lived 389 million years ago during the Devonian period. This example was found in Morocco!
Door 22 of the Fossil Advent Calendar reveals Haplophrentis carinatus, an invertebrate that lived 506 million years ago during the Cambrian period. It lived on the sea floor and had a long, conical shell. This example was found in British Columbia, Canada.
December 22, 2025 at 3:02 PM
Door 22 of the Fossil Advent Calendar reveals Haplophrentis carinatus, an invertebrate that lived 506 million years ago during the Cambrian period. It lived on the sea floor and had a long, conical shell. This example was found in British Columbia, Canada.
A fish from the Age of Fishes for day 21 of the Fossil Advent Calendar! Eusthenopteron foordi was a lobe-finned fish that lived 375 million years ago during the Devonian period. This example was found in Quebec, Canada.
December 21, 2025 at 2:52 PM
A fish from the Age of Fishes for day 21 of the Fossil Advent Calendar! Eusthenopteron foordi was a lobe-finned fish that lived 375 million years ago during the Devonian period. This example was found in Quebec, Canada.
A slab of trilobites hides behind door 20 of the Fossil Advent Calendar! Pseudogygites latimarginatus lived 450 million years ago during the Ordovician period. This group was found in Ontario, Canada.
December 20, 2025 at 3:30 PM
A slab of trilobites hides behind door 20 of the Fossil Advent Calendar! Pseudogygites latimarginatus lived 450 million years ago during the Ordovician period. This group was found in Ontario, Canada.
A trilobite for this #FossilFriday! Pseudogygites latimarginatus lived around 486 million years ago during the Ordovician Period. This example was found in Ontario, Canada.
December 19, 2025 at 2:37 PM
A trilobite for this #FossilFriday! Pseudogygites latimarginatus lived around 486 million years ago during the Ordovician Period. This example was found in Ontario, Canada.
It's #FossilFriday and Day 19 of our Fossil Advent Calendar! Today we have Eramoscorpius brucensis, an extinct species of scorpion that lived 432 million years ago during the Silurian Period. This example was found in Ontario, Canada.
December 19, 2025 at 2:36 PM
It's #FossilFriday and Day 19 of our Fossil Advent Calendar! Today we have Eramoscorpius brucensis, an extinct species of scorpion that lived 432 million years ago during the Silurian Period. This example was found in Ontario, Canada.
A Carboniferous monster hides behind door 18 of the Fossil Advent Calendar! Tullimonstrum gregarium, better known as the Tully Monster, was a soft-bodied marine creature that lived around 310 million years ago. This example was found in Illinois, USA.
December 18, 2025 at 3:38 PM
A Carboniferous monster hides behind door 18 of the Fossil Advent Calendar! Tullimonstrum gregarium, better known as the Tully Monster, was a soft-bodied marine creature that lived around 310 million years ago. This example was found in Illinois, USA.
Door 17 of the Fossil Advent Calendar reveals Yawunik kootenayi, an arthropod that lived 506 million years ago during the Cambrian period. This example was found in Kootenay National Park, British Columbia, Canada.
December 17, 2025 at 2:32 PM
Door 17 of the Fossil Advent Calendar reveals Yawunik kootenayi, an arthropod that lived 506 million years ago during the Cambrian period. This example was found in Kootenay National Park, British Columbia, Canada.
Another trilobite hides behind Door 16 of the Fossil Advent Calendar for #TrilobiteTuesday! Olenellus clarki lived around 512 million years ago during the Cambrian period, with this example found in California, USA.
December 16, 2025 at 2:36 PM
Another trilobite hides behind Door 16 of the Fossil Advent Calendar for #TrilobiteTuesday! Olenellus clarki lived around 512 million years ago during the Cambrian period, with this example found in California, USA.
One of my all-time favourite Cambrian fossils is hiding behind Door 15 of the Fossil Advent Calendar: Opabinia regalis. This remarkable creature lived around 506 million years ago, with this example having been found in British Columbia, Canada!
December 15, 2025 at 2:42 PM
One of my all-time favourite Cambrian fossils is hiding behind Door 15 of the Fossil Advent Calendar: Opabinia regalis. This remarkable creature lived around 506 million years ago, with this example having been found in British Columbia, Canada!
The Fossil Advent Calendar gives us Amiskwia sagittiformis for Day 14! This organism lived around 506 million years ago in the seas of the Cambrian period, with this example found in British Columbia, Canada.
December 14, 2025 at 3:03 PM
The Fossil Advent Calendar gives us Amiskwia sagittiformis for Day 14! This organism lived around 506 million years ago in the seas of the Cambrian period, with this example found in British Columbia, Canada.
Door 13 of the Fossil Advent Calendar reveals Canis lupus, better known as the Grey Wolf. Grey wolves have been around for hundreds of thousands of years, with this example dating to around 21,500 years ago.
December 13, 2025 at 3:04 PM
Door 13 of the Fossil Advent Calendar reveals Canis lupus, better known as the Grey Wolf. Grey wolves have been around for hundreds of thousands of years, with this example dating to around 21,500 years ago.
A giant of the Silurian seas for this #FossilFriday!
Acutiramus macrophthalmus was a eurypterid that lived 421 million years ago. This example is made up of several specimens found at one site in New York, USA. These Paleozoic predators could reach 2 metres in length!
Acutiramus macrophthalmus was a eurypterid that lived 421 million years ago. This example is made up of several specimens found at one site in New York, USA. These Paleozoic predators could reach 2 metres in length!
December 12, 2025 at 2:35 PM
A giant of the Silurian seas for this #FossilFriday!
Acutiramus macrophthalmus was a eurypterid that lived 421 million years ago. This example is made up of several specimens found at one site in New York, USA. These Paleozoic predators could reach 2 metres in length!
Acutiramus macrophthalmus was a eurypterid that lived 421 million years ago. This example is made up of several specimens found at one site in New York, USA. These Paleozoic predators could reach 2 metres in length!
Palaeozoic arthropods are among my favourite fossils to observe, and this #FossilFriday, door 12 of the Fossil Advent Calendar does not disappoint! Eurypterus remipes lived 421 million years ago during the Silurian Period. This example was found in Ontario, Canada.
December 12, 2025 at 2:34 PM
Palaeozoic arthropods are among my favourite fossils to observe, and this #FossilFriday, door 12 of the Fossil Advent Calendar does not disappoint! Eurypterus remipes lived 421 million years ago during the Silurian Period. This example was found in Ontario, Canada.
Behind door 11 of the Fossil Advent Calendar is an Ichthyosaur, Hudsonelpidia brevirostris! This is the holotype specimen which was found in British Columbia, Canada. It lived 210 million years ago during the Triassic period.
December 11, 2025 at 2:36 PM
Behind door 11 of the Fossil Advent Calendar is an Ichthyosaur, Hudsonelpidia brevirostris! This is the holotype specimen which was found in British Columbia, Canada. It lived 210 million years ago during the Triassic period.
Reposted by Tommyplodocus
We're interviewing Utah's State Paleontologist JIM KIRKLAND (@paleojim.bsky.social) on today's #Twitch stream!
He'll be telling us all about his newly published paper on Jurassic armored dinosaurs — and you can tune in and ask him questions LIVE @ twitch.tv/paleontologizing
He'll be telling us all about his newly published paper on Jurassic armored dinosaurs — and you can tune in and ask him questions LIVE @ twitch.tv/paleontologizing
December 10, 2025 at 9:32 PM
We're interviewing Utah's State Paleontologist JIM KIRKLAND (@paleojim.bsky.social) on today's #Twitch stream!
He'll be telling us all about his newly published paper on Jurassic armored dinosaurs — and you can tune in and ask him questions LIVE @ twitch.tv/paleontologizing
He'll be telling us all about his newly published paper on Jurassic armored dinosaurs — and you can tune in and ask him questions LIVE @ twitch.tv/paleontologizing
What’s lurking behind door 10 of the Fossil Advent Calendar? Nectocaris pteryx! This animal lived in the seas of the Cambrian Period around 506 million years ago. This example was found in Yoho National Park, British Columbia, Canada.
December 10, 2025 at 2:44 PM
What’s lurking behind door 10 of the Fossil Advent Calendar? Nectocaris pteryx! This animal lived in the seas of the Cambrian Period around 506 million years ago. This example was found in Yoho National Park, British Columbia, Canada.
Another #TrilobiteTuesday on the Fossil Advent Calendar means another trilobite behind door 9. This is a curious example I spotted at the museum, I have not been able to find much information about it, giving me yet another reason to go back for a visit!
December 9, 2025 at 2:39 PM
Another #TrilobiteTuesday on the Fossil Advent Calendar means another trilobite behind door 9. This is a curious example I spotted at the museum, I have not been able to find much information about it, giving me yet another reason to go back for a visit!
Day 8 of the Fossil Advent Calendar gives us Wiwaxia corrugata. This scaly organism lived 506 million years ago during the Cambrian Period. This example was found in Yoho National Park, British Columbia, Canada.
December 8, 2025 at 3:38 PM
Day 8 of the Fossil Advent Calendar gives us Wiwaxia corrugata. This scaly organism lived 506 million years ago during the Cambrian Period. This example was found in Yoho National Park, British Columbia, Canada.
Fossilised fish are some of my favourite fossils to look at, and luckily for me, door 7 of our Fossil Advent Calendar gives us Mioplosus labracoides. This fish lived 53 million years ago during the Eocene epoch and was found in the Green River Formation of Wyoming, USA.
December 7, 2025 at 2:36 PM
Fossilised fish are some of my favourite fossils to look at, and luckily for me, door 7 of our Fossil Advent Calendar gives us Mioplosus labracoides. This fish lived 53 million years ago during the Eocene epoch and was found in the Green River Formation of Wyoming, USA.
Behind door 6 of our Fossil Advent Calendar is an extinct species of comb jelly. Ctenorhabdotus capulus lived 506 million years ago during the Cambrian Period. This example was found in Yoho National Park, British Columbia, Canada.
December 6, 2025 at 2:38 PM
Behind door 6 of our Fossil Advent Calendar is an extinct species of comb jelly. Ctenorhabdotus capulus lived 506 million years ago during the Cambrian Period. This example was found in Yoho National Park, British Columbia, Canada.