Compartía este ecosistema con otros grandes dinosaurios

La extinción del Mammuthus columbi coincide con el final del Pleistoceno

Height 216 mm

durante el período Devónico Tardío

it has provided important insights into the morphology and defensive adaptations of early ankylosaurs

Irritator challengeri cretácico Compartía este ecosistema con otrosIrritator challengeri is a genus 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", in reference 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