A new Mongolian tyrannosauroid and the evolution of Eutyrannosauria - Nature A new tyrannosauroid, Khankhuuluu mongoliensis gen. et sp. nov., from lower Upper Cretaceous deposits of Mongolia provides a new perspective on eutyrannosaurian origins and evolution.

The Perle (1977) "Alectrosaurus" material is FINALLY described!!

Voris, J.T., Zelenitsky, D.K., Kobayashi, Y. et al. A new Mongolian tyrannosauroid and the evolution of Eutyrannosauria. Nature (2025). doi.org/10.1038/s415...

11.06.2025 15:33 — 👍 72    🔁 29    💬 1    📌 1

3D printed skull sculpture of Barinasuchus arveloi. Facing left with mouth open.

3D printed skull sculpture of Barinasuchus arveloi held in my hand. Facing right with mouth open.

3D printed skull sculpture of Barinasuchus arveloi. Facing right with mouth closed.

3D printed skull sculpture of Barinasuchus arveloi. Facing left with mouth closed.

After a few more small revisions my Barinasuchus skull reconstruction is finally done. Sculpted in #Blender, and here 3d printed at 1/6th scale.

#sciart #paleoart #paleontology

26.05.2025 17:17 — 👍 161    🔁 32    💬 4    📌 2

Heads or tails first? Evolution of fetal orientation in ichthyosaurs, with a scrutiny of the prevailing hypothesis - BMC Ecology and Evolution According to a longstanding paradigm, aquatic amniotes, including the Mesozoic marine reptile group Ichthyopterygia, give birth tail-first because head-first birth leads to increased asphyxiation risk...

There's actually some doubt about how strong the tail-first births correlate with aquatic habits. Paper by @feikosaur.bsky.social focussing on ichthyosaurs, but with broader implications. link.springer.com/article/10.1...

11.05.2025 20:50 — 👍 2    🔁 0    💬 1    📌 0

Figure showing the 3d model of the LSU Basilosaurus skull in lateral, ventral, and dorsal views; the skull is long, with large triangular cheek teeth, conical incisors, and a blowhole placed far out on the rostrum.

Photographs of the skull and mandibles of the LSU Basilosaurus.

New book out - Vertebrate fossils of Louisiana - and inside is a nice treat: the first publicly available images of the LSU Basilosaurus cetoides, hidden away for nearly fifty year since it was discovered. Initially described in a Ph.D. thesis, but a publication never followed. #whaleontology

30.04.2025 14:47 — 👍 49    🔁 15    💬 5    📌 0

Why do birds bob their heads? Why is their running style different to ours? Just want to see untrained chickens on a treadmill? Watch this video we made! It's in Dutch, but with English subtitles. Watch till the the blooper reel to see me get interrupted by loud chickens
youtu.be/cxewQ1GYcA4?...

13.04.2025 14:55 — 👍 23    🔁 7    💬 2    📌 0

Pinky the kitten raises a paw against the mighty mandible of T. rex!

It's both #NationalPetDay & #FossilFriday, so here's Pinky and Tyrannosaurus rex. Which is the better pet? Pinky threw up in multiple places this morning, so the competition is closer than you might think! 🦖>🐱?
#PinkysDinosaurAdventure

11.04.2025 21:27 — 👍 70    🔁 17    💬 1    📌 3

Spinosaurus aegyptiacus
An animal difficult to do justice with an illustration.

02.03.2025 13:48 — 👍 517    🔁 157    💬 12    📌 3

Our first paper on Late Triassic mammaliaforms from Avillers (Vosges, France) just came out in Revue de Paléobiologie. More to come!

08.02.2025 21:19 — 👍 9    🔁 1    💬 0    📌 0

Prenocephale bust

11.02.2025 08:54 — 👍 117    🔁 20    💬 6    📌 1

Basilosaurus isis skull diagram with various orthographic angles. Scale bar is 20 cm.

Basilosaurus isis skull diagram.
Mostly based on UMMP VP 118204

#sciart #paleoart

11.01.2025 11:07 — 👍 204    🔁 44    💬 4    📌 2