Irritator challengeri Dagonodum This dinosaur is significant because

This dinosaur is significant because it is one of the oldest known dinosaurs and arouses great interest in paleontology due to its importance in understanding the early stages of dinosaur evolution

Hábitat y comportamiento

and fauna dominated by therapsids

and a series of small protuberances on the top of its skull

Irritator challengeri Dagonodum This dinosaur is significant becauseIrritator 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