Did the thrinaxodon go extinct during End Triassic extinction?
Thrinaxodon is an extinct genus of therapsids that lived during the Middle and Late Permian period. It went extinct during the Permian–Triassic extinction event, which occurred about 252 million years ago. The End Triassic extinction event occurred much later, about 201 million years ago, and did not cause the extinction of Thrinaxodon.