Troodon Sinomegaceros during the Maastrichtian

during the Maastrichtian

Fossils of Aquilops americanus have been found in what is now the state of Montana

Prestosuchus became extinct at the end of this era

Saurophaganax is believed to have been an active carnivore that hunted large herbivorous dinosaurs

Troodon Sinomegaceros during the MaastrichtianThe Arctic Troodon (T. formosus "wounding tooth") was the largest of the species of its genus, belonging to the group of the smallest therapods (troodontids) from the Late Campanian Cretaceous period about 70 MA. Troodons were small, intelligent, feathered animals; fast and ferocious predators that had a relatively large brain compared to other dinosaurs and are thought to have hunted in packs. Troodon had very large eyes and binocular vision, this