Troodon Sinomegaceros Dunkleosteus terrelli was a species

Dunkleosteus terrelli was a species of arthrodirous placoderm fish that existed in the late Devonian period

Rhomaleosaurus (R

during the Maastrichtian

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

Troodon Sinomegaceros Dunkleosteus terrelli was a speciesThe 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