Enchoteuthis melanae Plesiosaurus similar to that of current

similar to that of current crocodiles

Diprotodon optum probably had peaceful herbivorous behavior

Longitud 135 mm

Length 126mm

around 220 million years ago

Enchoteuthis melanae Plesiosaurus similar to that of currentEnchoteuthis melanae was a coleoid cephalopod from the Late Cretaceous of North America, known from fossil remains recovered from marine deposits of the former Western Interior Seaway. Traditionally, related material was often associated with Tusoteuthis longa, but later revisions of large Cretaceous gladii have indicated that part of this material belongs to Enchoteuthis melanae, a taxon within Enchoteuthididae. This group represents one of the most