DescriptionThe rare fossils of Thrinaxodon liorhinus, extinct genus of advanced mammal-like reptiles, have played a central role in understanding both early mammalian evolution and the theory of plate tectonics. Thrinaxodon lived during the early Triassic (240-245 million years ago) and was roughly the size of a house cat.
ReferencesEstes, R. 1961. Cranial anatomy of the cynodont reptile Thrinaxodon liorhinus. Bulletin of the Museum of Comparative Zoology 125:165-180.
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