Troodon Sinomegaceros Prestosuchus became extinct at the

Prestosuchus became extinct at the end of this era

Rhomaleosaurus (R

the authors describing it interpreted Lalieudorhynchus as a semi-aquatic animal that may have had a lifestyle similar to that of the hippopotamus

Smilodon (S

Troodon Sinomegaceros Prestosuchus became extinct at theThe 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