approximately 73 to 65 million years ago

Its legs were robust and relatively long

con una longitud estimada de alrededor de 2 metros

durante el período Devónico Tardío

La extinción del Mammuthus columbi coincide con el final del Pleistoceno

Irritator challengeri cretácico approximately 73 to 65 millionIrritator 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