Tetracynodon tenuis Patagotitan Its robust body was covered

Its robust body was covered by thick

about 75 million years ago

perdura en los registros fósiles

supported by formidable neck and jaw muscles

Tetracynodon tenuis Patagotitan Its robust body was coveredTetracynodon tenuis was a small therapsid of the cynodont group that lived during the Late Permian Period and possibly briefly survived the mass extinction event that marked the boundary with the Triassic , approximately 252 million years ago. Its fossils have been found in South Africa, a region that has provided much evidence of the transition from mammal like reptiles to the first mammals. Tetracynodon represents one of the earliest cynodonts and