Xavier Jenkins
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semifossorial.bsky.social
Xavier Jenkins
@semifossorial.bsky.social
Paleontologist | NSF EAR Postdoctoral Fellow @AMNH | PhD @ ISU | Reptile origins, sensory evolution, and all things Permian 🦎🐢🐊
Pinned
It’s finally out!

Our work addressing the origins of reptiles is published in PCJ! peercommunityjournal.org/articles/10....

We use novel info gleaned from the scan data of dozens of stem reptiles to substantially revise our understanding of early reptile evolution #paleontology #herpetology
Come work with the vertebrate paleontology team at the American Museum of Natural History in NYC this summer!

REU Students will have the opportunity to study and reconstruct the skulls of Permian and Triassic reptiles 😃

Reach out to me if you have any questions (: Apply by the 31st!!
January 6, 2026 at 2:48 PM
Reposted by Xavier Jenkins
peerj.com/articles/204...
My first mammal project, which I started as an REU intern at the AMNH is finally published! Huge thanks to my mentors and coauthors on this project for all their help, and to the reviewers for their comments and suggestions!
The petrosal and bony labyrinth of extinct horses (Perissodactyla, Equidae) and their implications for perissodactyl evolution
Perissodactyla, or odd-toed ungulates, are represented today by 16 species of rhinoceroses, tapirs, and horses. Perissodactyls were much more diverse in the past, having a rich fossil record spanning ...
peerj.com
January 5, 2026 at 3:42 PM
Reposted by Xavier Jenkins
more wiki comms and stuff
December 13, 2025 at 9:38 PM
Buffa et al.’s paper on the enigmatic Permian reptile 🦎 Galesphyrus and the origin of Neodiapsida is out in the Journal of Systematic Palaeontology! Read the thread 👇 for some important takeaways from our study

@valentinbuffa.bsky.social

#Paleontology #Reptile #Permian

doi.org/10.1080/1477...
November 18, 2025 at 3:51 PM
It’s finally out!

Our work addressing the origins of reptiles is published in PCJ! peercommunityjournal.org/articles/10....

We use novel info gleaned from the scan data of dozens of stem reptiles to substantially revise our understanding of early reptile evolution #paleontology #herpetology
August 28, 2025 at 12:22 PM
Huge thanks to Michel Laurin for his recommendation of my work on reptile origins in PCI Paleontology! First of many works to come (:

Also thanks to Valentin Buffa, David Majanović, and others for their reviews (:

paleo.peercommunityin.org/articles/rec...
August 22, 2025 at 1:33 PM
Reposted by Xavier Jenkins
And I named one of them!!! Meet Aulacephalodon kapoliwacela - the Iron Hog - the first and so far only geikiid known from the Luangwa Basin! I worked on this taxon for my Master's thesis, and it's been lovely
August 7, 2025 at 3:05 PM
Now introducing Amenoyengi mpunduensis ('many-tooth from Mpundu'), a small moradisaurine captorhinid from the late Permian of Zambia with multiple rows of teeth! #Permian #Paleontology 😄

www.tandfonline.com/doi/full/10....
August 7, 2025 at 5:13 PM
Reposted by Xavier Jenkins
Other new species from Permian Zambia described in the JVP memoir include the temnospondyl Rhineceps karibaensis, the gorgonopsid Arctops umulunshi, and the captorhinid Amenoyengi mpunduensis
August 7, 2025 at 3:05 PM
Reposted by Xavier Jenkins
In what may be one of Earth’s craziest forms of mimicry, researchers in 2023 reported a species of rove beetle that grows a termite puppet on its back to fool real termites into feeding it.

Learn more during #InsectWeek: scim.ag/40mj1S8
Beetle grows ‘termite’ on back to steal food
Puppet helps insect trick real termites into feeding it
scim.ag
June 25, 2025 at 7:38 PM
Happy to announce that this fall I’ll be a Kalbfleisch and Frick Postdoctoral Research fellow at the American Museum of Natural History @amnh.org

I’ll work with Dr. Roger Benson on more early reptile evolution, sensory anatomy, and more. Super excited!
May 9, 2025 at 3:43 PM
Successfully passed my dissertation defense here at ISU! These past five years have been amazing. Fell in love with research, started my family with @thezoiejenkins.bsky.social , and couldn’t have asked for a better advisor in @gondwannabe.bsky.social #Dissertation #PhD
April 18, 2025 at 4:05 PM
Gemini is using Pterosaur Heresies as one of it's sources now. Extremely concerning...
March 26, 2025 at 2:25 AM
Extremely detailed paper on the anatomy Thadeosaurus, with increased phylogenetic support for Tangasauridae 🦎 🌊 onlinelibrary.wiley.com/doi/10.1002/...
The neodiapsid Thadeosaurus colcanapi from the upper Permian of Madagascar
The enigmatic neodiapsid Thadeosaurus colcanapi (Lower Sakamena Formation, southwestern Madagascar), sole species of the genus Thadeosaurus, is revised here. The attribution of 12 of the 21 referred ...
onlinelibrary.wiley.com
March 24, 2025 at 1:52 PM
Reposted by Xavier Jenkins
The St. George Dinosaur Discovery Site is looking for help with funding and crews to excavate an ~1/2 acre of bone beds in the Early #Jurassic (~200 million). We need big excavation equipment. Check out fossils and how you can help in the images attached.
February 4, 2025 at 10:23 PM
Reposted by Xavier Jenkins
Here is my reconstruction of Millereta rubidgei, an early #reptile from Late Permian South Africa. It has osteoderms on its head.

I was commissioned to do this recon for a redescription published yesterday! Congrats to @semifossorial.bsky.social and colleagues for such a cool paper!

#paleoart
March 5, 2025 at 4:54 PM
Reposted by Xavier Jenkins
Gabriel is one of the best! 📌
March 4, 2025 at 9:02 PM
And our amazing artwork of Milleretta, brought to life by
@serpenillus.bsky.social
😀 #Permian #Fossil #Reptile #Paleontology
March 4, 2025 at 7:46 PM
Our description of Milleretta rubidgei, a 252 million-year old reptile, is out! academic.oup.com/zoolinnean/a...
#Permian #Reptile #South Africa
March 4, 2025 at 12:13 PM
Reposted by Xavier Jenkins
Hi! I'm a palaeontologist who has just joined Bluesky. My lab recently published a paper on gorgonopsian osteohistology.

doi.org/10.1111/joa....
The osteohistology of gorgonopsian therapsids and implications for Permo‐Triassic theriodont growth
Permian gorgonopsian therapists had rapid, annually interrupted growth and show longer lifespans than early Triassic therapists.
doi.org
February 5, 2025 at 9:58 AM
Reposted by Xavier Jenkins
We're looking for help with the excavation of bone beds at the St. George Dinosaur Discovery Site in SW Utah. We need heavy excavation equipment to move a large fossil-rich rock pile and in place rock above the bone beds. The City will break ground for an electrical substation in early April.
An early independent evaluation of the scientific significance of the St. George Dinosaur Discovery site. Minimize the loss of unique basal Jurassic data. www.academia.edu/49770819/The...
@andrewtracks.bsky.social @paleontologizing.bsky.social @utahpaleo-ufop.bsky.social @ichnologist.bsky.social
February 2, 2025 at 6:05 PM