Irritator challengeri Variant:Unprimed Arctodus simus became extinct toward

Arctodus simus became extinct toward the end of the Pleistocene

In the hunting scene

Estas serraciones

such as forests

Irritator challengeri Variant:Unprimed Arctodus simus became extinct towardIrritator challengeri is a species of spinosaurid theropod dinosaur that lived during the Early Cretaceous period, approximately 110 million years ago, in what is now Brazil. Its name comes from the Latin "irritator," referring to the frustration of paleontologists upon discovering that the original fossil had been altered with plaster by the collectors who found it, and "challengeri" in honor of Professor Challenger, a fictional character created by