Caseidae
Videos
Caseidae are an extinct family of basal synapsids that lived from the Late Carboniferous to Middle Permian between about 300 and 265 million years ago. Fossils of these animals come from the south-cen
Skull of Euromycter rutenus in ventral view allowing to see the numerous small teeth adorning the bones of the palate (the parasphenoid, triangular in shape in the center, and the very elongated pterygoids on each side). The hyoid apparatus is not present here because it was removed during the preparation of the palate.
Skeleton of Cotylorhynchus romeri on display at the Sam Noble Oklahoma Museum of Natural History.
Holotype of the faunivorous caseid Callibrachion gaudryi preserved on the back (A). Detail of the right hand (B). Right ilium covered dorsally by the proximal end of the femur (C). Coprolites of sharks placed on the slab of the holotype during the 19th century (D).
Angelosaurus
Videos
Angelosaurus is an extinct genus of herbivorous caseid synapsids that lived during the late Lower Permian and early Middle Permian in what is now Texas and Oklahoma. Like other herbivorous caseids, it
Distribution of caseid synapsids in late Paleozoic Pangea
Distribution of caseid synapsids in late Paleozoic Pangea detail
Raranimus dashankouensis