Irritator challengeri Gorgosaurus Thylacoleo carnifex was comparable to

Thylacoleo carnifex was comparable to a modern big cat

such as visual communication between individuals of the same species and temperature regulation

with an estimated weight of around 15 to 20 tons

Tylosaurus had four well-developed fins that acted as oars for swimming in the sea

its ability to run at high speeds allowed it to chase and capture prey

Irritator challengeri Gorgosaurus Thylacoleo carnifex was comparable toIrritator 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