They lived during the Permian period

Estos animales son parte de la familia Protocetidae

tarsometatarsus) and allometric scaling methods

as well as a variety of prehistoric flora and fauna

rivers and lagoons

Dilophosaurus wetherilli Variant:Unprimed They lived during the PermianDilophosaurus wetherilli is a primitive theropod dinosaur that lived during the Early Jurassic , approximately 193 million years ago, in what is now North America. Its fossils were discovered in the Kayenta Formation, in Arizona, and first described in 1954. This dinosaur is distinguished by having a pair of elongated bony crests on its skull, giving it its name, which means "double crested lizard". For a long time, Dilophosaurus was wrongly