Helicoprion Scale:1:20 with an estimated length of

with an estimated length of around 70 centimeters and a weight of about 1 kilogram

Its name means "single claw" in reference to its most distinctive feature: the small size of its forelimbs

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

approximately 154-150 million years ago

and probably formed large groups for protection and efficiency in foraging

Helicoprion Scale:1:20 with an estimated length ofHelicoprion ( 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