Chasmosaurus russelli Variant:Primed Secodontosaurus willistoni is believed to

Secodontosaurus willistoni is believed to have lived in terrestrial environments and possibly had nocturnal habits to avoid diurnal predators and competitors

its eggs could reach a size of about 50 cm in length

Medidas aproximadas del Austroraptor:

Although its modest size made it vulnerable to predators

Chasmosaurus russelli Variant:Primed Secodontosaurus willistoni is believed toChasmosaurus russelli is a species of ceratopsian dinosaur that lived during the late Cretaceous period, approximately 75 million years ago, in what is now North America. This herbivore belongs to the genus Chasmosaurus, known for its distinctive horns and large bony frill at the back of its skull. Chasmosaurus russelli is distinguished from other species of the same genus by several details in its cranial anatomy. It had a large, elongated steering