Dvinia was a therapsid mammal-like "reptile" of the family Dviniidae found in Sokolki on the Northern Dvina River near Kotlas in Arkhangelsk Oblast, Russia. Its fossil remains date from the Late Permian and were found with Inostrancevia, Scutosaurus and Vivaxosaurus.The species was small omnivore containing an extremely large temporal opening typical of advanced therapsids, with a thin bone separating the eye and muscle attachment.
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