VT Paleobiologyさんのイラストまとめ

Introducing the #FunkyWorm, the oldest-known fossil caecilian! 220 million years ago Funcusvermis gilmorei roamed the tropical forests of Petrified Forest National Park. @PetrifiedNPS @VT_Science @vtgeosciences @AndreyAtuchin Read the paper at: https://t.co/OimkTSdb6u

This concept helps to explain why dinosaurian faunas (like Tawa) are different in the southern continents when compared to North America faunas (were much closer to the equator in the Triassic)(art by Jorge Gonzalez)

Yay #FossilFriday! N is for Neoaetosauroides, an #aetosaur from the L #Triassic of Argentina. Recently Taborda et al. used FEA to support possible zoophagy/omnivory, previously proposed by Desojo, & by von Backzo et al. https://t.co/6YtiXhaL55 #Croctober #AtoZCrocs #StemCroctober

Today’s #StemCroctober is Mystriosuchus Fraas 1896. These #phytosaurs, including M. westphali & M. planirostris, have a looooong slender snout & short squamosals. A 3rd one, M. steinbergeri, was added in 2019. It's from Austria & was marine! #Croctober #AtoZCrocs #StemCroctober

Today’s #Stemcroctober is Poposaurus gracilis Mehl 1915 from the Upper Triassic of the western US. Poposaurus has a remarkably similar body plan to dinosaurs, yet has hallmarks of all pseudosuchians. We know almost the full anatomy, minus parts of the skull #Croctober #AtoZCrocs

Today’s #Stemcroctober is Nundasuchus songeaensis Nesbitt et al. 2014 a pseudosuchian from the Manda Beds of Tanzania. The phylogenetic position is poorly constrained, but largely because it lacks characters of the ‘classic’ pseudosuchian clades #Croctober #AtoZCrocs

Today’s #Stemcroctober is Desmatosuchus spurensis Case 1921, an aetosaur from the southwest. It was a one of the largest with shoulders spikes measuring ~50 cm. The diet is his unknown, but it could have been the largest herbivore of NA in the L Triassic #Croctober #AtoZCrocs