Einiosaurus (name meaning "Bison Lizard") is a genus of herbivorous centrosaurine ceratopsian dinosaur that lived during the Late Cretaceous in what is now North America.
In the Series 2 episode "Super Croc II: River of Death", a herd of Einiosaurus (consisting of eight adults, and four juveniles) were brought to the park from Late Cretaceous Alberta 75 million years ago. They reside in the Ceratopsian Grasslands Enclosure and recently welcomed hatchlings into the herd.