but it has been speculated that climatic events and ecosystem changes may have been contributing factors

specifically in the Early Triassic era

and its small head in relation to body size

similar to that of modern dolphins

One of the notable features of Plateosaurus was its long

Ceratosaurus / Allosaurus Amargasaurus but it has been speculatedCeratosaurus is a theropod dinosaur that lived during the late Jurassic period, approximately 150 million years ago. It was characterized by its head adorned with a large horn shaped bony crest over the snout and two smaller crests over the eyes. It had a robust body with long, muscular hind legs, while its arms were short and had sharp claws. It is believed to have been an agile carnivore and active hunter, probably feeding on other small dinosaurs