Irritator challengeri Gorgosaurus Investigation of the fossils of

Investigation of the fossils of Tupuxuara and other pterosaurs has provided valuable information about how these animals adapted to life in the air and how they evolved to become the large predators that they were

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

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

Irritator challengeri Gorgosaurus Investigation of the fossils ofIrritator 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