A new taxon of saurischian dinosaur from the Coelophysis Quarry of New Mexico, USA (Triassic: latest Norian or Rhaetian) highlights herrerasaurian diversity in the latest Triassic - Srivastava - 2026 - Papers in Palaeontology - Wiley Online Library onlinelibrary.wiley.com/doi/10.1002/...

This is an astonishing fossil find: an Early Triassic (~250 mya) baby Lystrosaurus still in "egg position" with/ 2 other babies, showing these mammal precursors hatched from eggs! Did these burrowers also nest in burrows? Must. Read. Article. Congrats to @jenniferbotha.bsky.social & colleagues! 🧪🪨🥚

NEW: Hurricane Melissa was such a monstrous tempest that it was literally shaking the Earth as far away as Florida, where seismometers picked up its stormquakes. Here’s how seismometers can also shine a light on hurricanes long gone. Me @sciam.bsky.social www.scientificamerican.com/article/seis...

Exquisite dome-headed dinosaur unearthed in Mongolian desert is oldest ever found ... www.discoverwildlife.com/dinosaurs/za... #dinosaurs

スミソニアン 珍しい化石から、一部の恐竜が鳥のような鳴き声を発し、似たような発声器官の構造を持っていた可能性が示唆される プラオサウルス・チンロンは、骨質の喉頭が保存された状態で発見された2番目の非鳥類恐竜である www.smithsonianmag.com/smart-news/r...

"Terrible Lizards" | #DinosauriaSeries | Animated Short Film (2025) It's finally here, everyone! :D www.youtube.com/watch?v=OH57...

The first dinosaurs might have been bigger than expected From @nhm-london.bsky.social Science News www.nhm.ac.uk/discover/new...

Morning all. Meet Enigmacursor mollyborthwickae, a new neornithishian dinosaur from the Morrison Formation. It goes on display @nhm-london.bsky.social from tomorrow. Paper by @profpaulbarrett.bsky.social and I in @royalsocietypublishing.org Open Science. royalsocietypublishing.org/doi/10.1098/...

Jésus, V.J.P. et al. 2025. Late Triassic small and medium-sized vertebrates from the Fleming Fjord Group of the Jameson Land Basin, central East Greenland. Palaeontologia Electronica, 28(1):a18. doi.org/10.26879/1423 palaeo-electronica.org/content/2025/5520-triassic-greenland-vertebrates

Meet Prestosuchus chiniquensis. It lived in what’s now Brazil some 210 million years ago. Although it was a large animal with big claws & a huge head with sharp-toothed jaws, it wasn't a dinosaur—it's actually a close relative of crocodylomorphs. Photo: © AMNH

In 2023, a erm.... controversial paper tried to rename Prestosuchus to Huenesuchus based on an egregious misapplication of the ICZN. My rebuttal of this is finally out, open access in @revbraspaleontol.bsky.social sbpbrasil.org/publications...

WOW WOW WOW!! @smnstuttgart.bsky.social 22 #aetosaurs lying close together (Upper #Triassic) From: phys.org/news/2025-03...

A baby Stegomus to brighten your day. Model by Sean Murtha, on display (look for it in the Triassic diorama) at the Bruce Museum.

Campos, Leomir dos S. and Da-Rosa, Átila Augusto Stock and Leal, Luciano Artemeo and Sayao, Juliana Manso, A New Tiny Basal Sauropodomorpha (Dinosauria - Saurischia) from the Santa Maria Supersequence, Upper Triassic of Southern Brazil. ssrn.com/abstract=513... or dx.doi.org/10.2139/ssrn...

The ornithopod Iguanodon was described on February 10, 1825. And on this day, is February 10, 2025. It’s been exactly 200 years since the “iguana tooth” dinosaur was described and named in a scientific paper! #200years #Iguanodon

For #FossilFriday here’s part of the type specimen of the Zimbabwean dinosaur Syntarsus, housed in the NHMZ, one of the most abundantly and well preserved early theropods known currently 🦖🇿🇼

Ponce, D.A., Cerda, I.A. & Desojo, J.B. (2025) A fast start: Evidence of rapid growth in Trialestes romeri, an early Crocodylomorpha from the Upper Triassic continental beds of Argentina based on osteohistological analyses. Journal of Anatomy, 00, 1–11. Available from: doi.org/10.1111/joa....

What a great find for Triassic paleontology.

happy 2nd birthday to Funcusvermis, the funkiest “worm” in the world and the oldest known fossil caecilian! Free download here: www.nature.com/articles/s41... 🧪🦖

#FossilFriday Jumble of Revueltosaurus callenderi bones from the Triassic of Arizona.

Interesting study, but appears to depend on silesaurids being ornithischians. We just aren’t there yet. Keep looking.

Another new Triassic aetosaur from India. They are on a roll. www.tandfonline.com/doi/full/10....

Had to visit Virginia Tech Paleo to check out their new, absolutely huge uCT scanner

Always satisfying to do the occasional history pub. The one features the city I’ve called home the last two decades.

Kimberley E. J. Chapelle, Christopher T. Griffin and Diego Pol (2025) Growing with dinosaurs: a review of dinosaur reproduction and ontogeny Biology Letters 21(1): 20240474 doi: doi.org/10.1098/rsbl... royalsocietypublishing.org/doi/10.1098/...

Periodic table colored by lickability. 😛

Finally, even The Economist recognizes that the Triassic is the most fabulous geological period. Better late than never…

#FossilFriday. 1930s exhibit of Late Triassic fossil leaves from Petrified Forest National Park.

Out today in "Contributions from the UMMP"—a new, large, 3D actinopterygian skull from the Pennsylvanian of New Mexico and implications for the "macrodont problem" hdl.handle.net/2027.42/195964. Nice work from @friedmanlab.bsky.social, @rodrigoichthys.bsky.social, @gilespalaeo.bsky.social & others.

For #FossilFriday here is the partial skull and carapace of the recently described ‘carnivorous aetosaur’ from the Late Triassic of Texas. It provides significant new information about Coahomasuchus kahleorum.

This specimen was discovered at Ghost Ranch NM, but the holotype is from Petrified Forest NP. Named for the discoverer park naturalist Phillip Van Cleave as well as Charles L. Camp.

Congratulations @ErkasaurusR on the new publication! onlinelibrary.wiley.com/doi/10.1111/...

Oh groovy, our paper on the hindlimb biomechanics of the Triassic dinosauriform Lagosuchus is out! A quick thread for now. We uCT-scanned most of the existing skeletal material for this important outgroup to Dinosauria. We sorted through the elements and chose the best ones to make a 3D model from.

#fossilfriday. Rhynchosaur skeleton on exhibit at Ichchigualsto Provincial Park in Argentina. #ParqueTriassico

For this #FossilFriday, here’s a skull cast of #Massospondylus carinatus, an Early #Jurassic sauropodomorph dinosaur from Southern Africa. First described as a big lizard by Sir Richard Owen in 1854, we now know that this dinosaur is an early relative of the giant long-necked sauropods 🦕 🧵 1/

A gorgon turned to stone for #FossilFriday. This is the forever smile of Gorgonops, a biostratigraphically important mammal-cousin from the early late #Permian of the mid-Zambezi Basin, #Zambia. 🇿🇲

New #crocpaper alert ! 🐊🚨 Fossil crocodylomorphs lived in a wide diversity of environments compared to extant ones. This review (my first one !) focuses on those adaptations, from very early Triassic forms to crown group eusuchians ! doi.org/10.1002/ar.2... in @anatrecord.bsky.social

For #FossilFriday here’s the holotype partial skull of the procolophonid Hwiccewyrm, which we described last year from the Late Triassic of SW England. Named for the ancient kingdom of Hwicce and the Old English for dragon. More procolophonid material from the same site coming soon!

Happy #FossilFriday. Here are the fossil remains of the Austrian phytosaur Mystriosuchus steinbergeri, which were discovered in the Dead Mountains of Salzburg. Estimates suggest it might have reached a length of around 4 meters.

One of our best fossils collected from Petrified Forest. It is a ‘Rosetta stone’ specimen of Revueltosaurus callenderi providing key information on the osteoderm arrangement and clarifying relationships within Aetosauriformes.

This #FossilFriday let’s drop below the Permian-Triassic boundary, before the mass extinction. This stem-reptile is a pareiasaur: one of the largest reptiles of the Permian. This specimen is from #Zambia and was one of the best fossils I found as a new grad student on my first trip in 2011.

New study evaluates bone microstructure of Triassic icon Prestosuchus chiniquensis, revealing growth patterns & proposing an ontogenetic model w/6 age classes. Study insights include histovariability, ontogeny & a possible new taxon! Brodsky de Farias et al.: doi.org/10.1002/ar.2...

de Farias, B.D.M. et al. (2024). The first ontogenetic model for non-crocodylomorph loricatans, based on osteohistology of the ontogenetic series of Prestosuchus chiniquensis from the Middle Triassic of Brazil. The Anatomical Record, 1–31. doi.org/10.1002/ar.2...