Ichthyosaurus was a marine reptile that dominated the Mesozoic seas from the Triassic to the Late Cretaceous period. Resembling modern dolphins, they represent a prime example of convergent evolution, ...

The validity of the parvipelvian ichthyosaur genus Protoichthyosaurus was evaluated by examining the type material and recently recognized specimens. Protoichthyosaurus has a wide forefin with at ...