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Yohan Pochat-Cottilloux

@yohanpochatcot.bsky.social
85 followers 69 following 12 posts

Post Doc, working on crocodylomorphs and reptiles. CT scan, geochemistry, geometric morphometrics, phylogeny, vertebrate, paleontology

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Yohan Pochat-Cottilloux @yohanpochatcot.bsky.social · 07/01/2026
We describe shell fragments, and a skull that we attribute to Trionyx cf. vindobonensis. This is interesting both for the paleobiogeography of the family during the Miocene, and also because it opens up the possibility of a northern dispersal of such taxa during this period.
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Yohan Pochat-Cottilloux @yohanpochatcot.bsky.social · 07/01/2026
These findings come from new vertebrate localities from the Holy Cross Mountains region, Central Poland. They represent a coastal environment along the Parathethys, about 12 Ma (Serravalian).
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Yohan Pochat-Cottilloux @yohanpochatcot.bsky.social · 21/12/2024
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.
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Yohan Pochat-Cottilloux @yohanpochatcot.bsky.social · 21/12/2024
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.
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Yohan Pochat-Cottilloux @yohanpochatcot.bsky.social · 26/11/2024
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.
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