they swam in the breakers and shallow coastal waters

let out warning squeaks and scattered

Dunkleosteus terrelli was a species of arthrodirous placoderm fish that existed in the late Devonian period

which could well be one of the enormous phytophagous sauropods that it hunted in its time

doesn't stop and follows the Pachycephalosaurus with ease

Diplocaulus magnicornis Variant:Primed they swam in the breakersDiplocaulus magnicornis is an extinct species of amphibian that lived during the Permian period, approximately 270 to 260 million years ago. It falls within the group of lepospondyls, which were primitive amphibians that exhibited characteristics of both modern amphibians and reptiles. The most distinctive feature of Diplocaulus magnicornis was its peculiar skull, which resembled the shape of a "shovel" or "boomerang". It had an elongated, flat skull