Yohan Pochat-Cottilloux

Séon N, Vincent P, Delsett LL, et al. Reassessment of body temperature and thermoregulation strategies in Mesozoic marine reptiles. Paleobiology. Published online 2025:1-21. doi:10.1017/pab.2025.2

www.cambridge.org/core/journal...

We had an excellent research visit at the Henryk Teisseyre Geological Museum and the Department of Paleozoology at the University of #Wrocław. Excellent #Miocene fossils and a few surprises! @yohanpochatcot.bsky.social @ncn.gov.pl

@yohanpochatcot.bsky.social studied the variation of the morphology of the endosseous labyrinths of extant crocodiles & showed that its morphology is mainly related to the size of the specimen (allometry) and is probably due to changes in braincase conformation.

Anatomical description and systematics of a new notosuchian (Mesoeucrocodylia; Crocodyliformes) from the Quiricó Formation, Lower Cretaceous, Sanfranciscana Basin, Brazil Notosuchians comprise a clade of mostly terrestrial crocodyliforms generally found in Cretaceous Gondwanan deposits. They evolved into many forms and some species show convergences with mammalian f...

🚨Croc paper alert!

Please welcome Thilastikosuchus scutorectangularis 🐊, the oldest notosuchian from South America and the first crocodyliform from the Sanfranciscana Basin, Brazil!

Happy to be part of this team. Huge thanks to Joyce for being invited to collaborate! #paleontology

A size comparison between a human and Orientalosuchus naduongensis. Orientalosuchus is shown with a long tail, for relatively short legs and a short and rounded snout. It is shown as somewhere around 1.7 to 1.8 meters long. A map on the side shows where it was found in Vietnam.

A skull reconstruction of Orientalosuchus naduongensis with a 3cm scalebar. It has a short and rather wide snout with large eyes and prominent crests that run between the opening of the nares and the eyes.

Size comparison and skull reconstruction of Orientalosuchus naduongensis, a fairly small crocodilian from the Eocene of Vietnam.
#sciart #orientalosuchus #crocodilia

We're thrilled to announce the publication of an exciting new Special Issue on pseudosuchian paleobiology and systematics, Guest Edited by Mariana Valeria de Araujo Sena,
Holly Woodward & Jorge Cubo.
anatomypubs.onlinelibrary.wiley.com/toc/19328494...
Beautiful cover paleoart by Guilherme Gehr

A big thanks to all my co-authors, as well as the editor and reviewers, and all the curators that made this work possible !
Feel free to DM me if you want the PDF :)

The phylogenetic signal, although existing, is quite moderate, and sadly cannot be 'translated' into relevant morphological characters. This study will be useful and raises several problems for the inclusion of fossil forms, to study ecological changes for example.

Through a very thorough sampling of extant crocs (111 specimens of diverse ontogenetic stages and taxa) we show that the morphology of the endosseous labyrinth is mainly related to the size of the specimen (allometry) and probably to changes in braincase conformation.

Size, not phylogeny, explains the morphology of the endosseous labyrinth in the crown clade Crocodylia Here, we present the most complete dataset to date on the endosseous labyrinths of extant crocodylians. Using 3D geometric morphometrics, we show that allometry constitutes a major contributor of the...

New #crocpaper alert !🐊🚨 And just in time for Christmas ! We studied the variation of the morphology of the endosseous labyrinths (inner ears) of extant crocs. Published in @journalofanatomy.bsky.social
today : doi.org/10.1111/joa.... Thread below:

Bust of Sebecus icaeorhinus. This is actually a test for a larger -Iberosuchus- project I am working on.
Sebecosuchia was really something.
#Crocodylomorpha

A juvenile Macrospondylus bollensis, an extinct crocodylomorph from the Early Jurassic of Germany.

A juvenile Macrospondylus for #FossilFriday - some exciting data collection coming from this fella soon!
🐊

New research on functional and phylogenetic signals in the pectoral girdle of Thalattosuchia and Dyrosauridae.
Study by Isaure Scavezzoni et al.: https://buff.ly/3VcXhpp

Glad you noticed, I admit this was more about displaying the closest overall body shape possible for each clade than anything else :) Happy that you like the paper and thanks again for making your work available to the community 🐊🐊

A review of the non‐semiaquatic adaptations of extinct crocodylomorphs throughout their fossil record | Request PDF Request PDF | A review of the non‐semiaquatic adaptations of extinct crocodylomorphs throughout their fossil record | Crocodylomorphs constitute a clade of archosaurs that have thrived since the Mesoz...

Thanks to people that proofread the manuscript, and
@anatrecord.bsky.social
for the great Special Issue this is a part of. PDF is also available for free here: www.researchgate.net/publication/...

I tried to put in as much references as possible, summarizing decades of research, so a good place to start to get interested in this group, or (hopefully) to get a global overview.

A review of the non‐semiaquatic adaptations of extinct crocodylomorphs throughout their fossil record Crocodylomorphs constitute a clade of archosaurs that have thrived since the Mesozoic until today and have survived numerous major biological crises. Contrary to historic belief, their semiaquatic ex...

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

Supermassive new paper (162 pages!) led by Dr Isaure Scavezzoni on the pectoral girdle anatomy of thalattosuchian and dyrosaurid crocodylomorphs, highlighting the enormous amount of information in croc postcranial skeletons!

@michela-johnson.bsky.social

onlinelibrary.wiley.com/share/author...