Helicoprion Scale:1:20 approximately 154-150 million years ago

approximately 154-150 million years ago

musculatura mandibular poderosa y armadura corporal apunta a un estilo de vida de baja movilidad y estrategias defensivas pasivas frente a depredadores contemporáneos como Majungasaurus

Longitud 197 mm

Approximate measurements of the Tsintaosaurus:

un grupo de herbívoros conocidos por sus característicos cuernos y volantes óseos en la parte posterior de la cabeza

Helicoprion Scale:1:20 approximately 154-150 million years agoHelicoprion ( H. ergassaminon , 'Saw coil') is a genus of extinct cartilaginous fish that resembled sharks in appearance and behavior. This genus first emerged in the oceans of the Late Carboniferous, approximately 290 million years ago, and survived the Permian Triassic mass extinction, which occurred about 252 million years ago. However, it finally became extinct in the Late Triassic, approximately 225 million years ago. The most remarkable feature