Tetracynodon tenuis Patagotitan about 75 million years ago

about 75 million years ago

Longitud 171 mm

Las estimaciones sugieren una longitud corporal aproximada de 3 a 4 metros y una masa que probablemente se situaba entre 150 y 300 kilogramos

Longitud hocico-cola 88 mm

but detailed anatomical studies demonstrated sufficient differences to justify its separation into the genus Giraffatitan

Tetracynodon tenuis Patagotitan about 75 million years agoTetracynodon 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