sentences:  Fossils of the prosauropod dinosaur "Massospondylus" and "Plateosaurus" have been recovered from the Upper Elliot Formation, which boasts the world's most diverse fauna of early Jurassic ornithischian dinosaurs, including "Abrictosaurus", "Fabrosaurus", "Heterodontosaurus", and "Lesothosaurus", among others.The Forest Sandstone Formation was the paleoenvironment of protosuchid crocodiles, sphenodonts, the dinosaur "Massospondylus" and indeterminate remains of a prosauropod.