The dorsal plates

it is believed that they could have been used to tear branches

Fossils of Cameroceras trentonense have been found in various parts of North America

Utahraptor's head was large in comparison to its body

Arizonasaurus babbitti Variant:Unprimed The dorsal platesArizonasaurus babbitti : The sailboat hunter of the Middle Triassic Long before the great dinosaurs dominated the Earth, during the Middle Triassic, approximately 240 million years ago, surprising lineages emerged that would pave the way for the dominant reptiles of the Mesozoic. One of the most enigmatic and striking was Arizonasaurus babbitti , a large predatory archosaur whose silhouette was crowned by a tall dorsal sail, reminiscent of similar