J Pardo
@jdpardo.bsky.social
NSF EAR Postdoctoral Fellow at the Field Museum of Natural History. Tetrapods in deep time: evolution, development, and paleontology. Also: mountains.
After every extinction:
November 6, 2025 at 3:34 PM
After every extinction:
This is a super cool paper from the Hejnol group that should be a top reference for a lot of animal biodiversity/zoology courses.....origins of the bilaterian anus from the gonopore. Just drop this figure right into your slide deck.
www.nature.com/articles/s41...
www.nature.com/articles/s41...
October 27, 2025 at 5:49 PM
This is a super cool paper from the Hejnol group that should be a top reference for a lot of animal biodiversity/zoology courses.....origins of the bilaterian anus from the gonopore. Just drop this figure right into your slide deck.
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Lots of meaty papers from Tim Smithson's festschrift. In addition, we contributed a little paper on a lungfish otoccipital from the early Mississippian of Nova Scotia. Nothing fancy but it shows affinities with groups previously known only from the Devonian.
www.cambridge.org/core/journal...
www.cambridge.org/core/journal...
October 20, 2025 at 4:27 PM
Lots of meaty papers from Tim Smithson's festschrift. In addition, we contributed a little paper on a lungfish otoccipital from the early Mississippian of Nova Scotia. Nothing fancy but it shows affinities with groups previously known only from the Devonian.
www.cambridge.org/core/journal...
www.cambridge.org/core/journal...
a slight edit to Far Side brilliance
October 7, 2025 at 6:40 PM
a slight edit to Far Side brilliance
When the moon hits your eye
September 16, 2025 at 12:09 AM
When the moon hits your eye
Interesting use of lithium isotopes to test for habitat specialization in Miguasha vertebrates. Notably, the authors find evidence for marine occupancy for tetrapodamorphs Eusthenopteron and Elpistostege, compared to freshwater occupancy in other common taxa.
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
September 5, 2025 at 9:33 PM
Interesting use of lithium isotopes to test for habitat specialization in Miguasha vertebrates. Notably, the authors find evidence for marine occupancy for tetrapodamorphs Eusthenopteron and Elpistostege, compared to freshwater occupancy in other common taxa.
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
Attention insect pollinators: no need to worry, this flower is perfectly safe!
August 20, 2025 at 7:15 PM
Attention insect pollinators: no need to worry, this flower is perfectly safe!
It's #fossilfriday so here's a jaw of the giant Permian ray finned fish Brazilichthys from #Piaui, #Brazil
July 4, 2025 at 5:45 PM
It's #fossilfriday so here's a jaw of the giant Permian ray finned fish Brazilichthys from #Piaui, #Brazil
If you see this, post a sword
June 4, 2025 at 1:27 PM
If you see this, post a sword
Latest Devonian sagenodontid from Morocco. Further evidence that the Carboniferous-Permian lungfish assemblage (ctenodontids, conchopomatids, sagenodontids, gnathorhizids) all originated by the Hangenberg extinction rather than a single Carboniferous diversification
peerj.com/articles/193...
peerj.com/articles/193...
June 3, 2025 at 9:49 PM
Latest Devonian sagenodontid from Morocco. Further evidence that the Carboniferous-Permian lungfish assemblage (ctenodontids, conchopomatids, sagenodontids, gnathorhizids) all originated by the Hangenberg extinction rather than a single Carboniferous diversification
peerj.com/articles/193...
peerj.com/articles/193...
Speaking of native orchids, here's some Corallorhiza from the park behind my house
May 31, 2025 at 11:53 PM
Speaking of native orchids, here's some Corallorhiza from the park behind my house
Here's a rough lateral view I made at some point. You can see how the back of the skull is a bit flatter and wider, and the front of the skull is a bit longer, more akin to what we see in other early stem tetrapods. The orbits are also dorsally prominent above the skull table.
May 23, 2025 at 2:58 PM
Here's a rough lateral view I made at some point. You can see how the back of the skull is a bit flatter and wider, and the front of the skull is a bit longer, more akin to what we see in other early stem tetrapods. The orbits are also dorsally prominent above the skull table.
Damn, Team Paleozoic, Matilda has our number
April 24, 2025 at 2:47 PM
Damn, Team Paleozoic, Matilda has our number
Not into vertebrates? Nostalgic for the classics? Worry not, Colossal Biosciences is planning a new product line just for you. Anything is possible with our patented Red Stapler™ technology.
April 9, 2025 at 6:45 PM
Not into vertebrates? Nostalgic for the classics? Worry not, Colossal Biosciences is planning a new product line just for you. Anything is possible with our patented Red Stapler™ technology.
More big plans for Colossal Biosci. Venture capital, take note. I'm a Big Idea man who gets it done.
April 9, 2025 at 6:38 PM
More big plans for Colossal Biosci. Venture capital, take note. I'm a Big Idea man who gets it done.
Making a custom version just for @koskinonodon.bsky.social
April 9, 2025 at 5:57 PM
Making a custom version just for @koskinonodon.bsky.social
Something something conservation something morphological species concept something something venture capital
April 9, 2025 at 5:01 PM
Something something conservation something morphological species concept something something venture capital
New Colossal Science project
April 9, 2025 at 12:56 PM
New Colossal Science project
Oy.
Oy vey.
Oy gevalt.
Oy vey.
Oy gevalt.
February 28, 2025 at 3:24 PM
Oy.
Oy vey.
Oy gevalt.
Oy vey.
Oy gevalt.
