Protocetus atavus Variant:Hand painted Its main features were a

Its main features were a horn over its nostrils and two minor bony crests located over its eyes

flattened duck-like beak

One of the most striking features of the Inostrancevia alexandri is its robust and long skull

This suggests that Dreadnoughtus had large muscle mass and considerable strength in its limbs

Protocetus atavus Variant:Hand painted Its main features were aProtocetus atavus is a species of primitive cetacean that belongs to the family Protocetidae, an ancestral branch of cetaceans that represents a transition between land mammals and modern cetaceans. This species lived during the Eocene, approximately 45 million years ago. Its name, Protocetus, reflects its position as an early ancestor of cetaceans. Physically, Protocetus atavus shared both terrestrial and aquatic characteristics. Although it already