#Show me a picture of t rex full

TyrannosaurĮvolution came to a screeching halt during the end Cretaceous mass extinction event.Ĭlick on the Tyrannosaur name below to learn about each one, or simply scroll down! Some were adapted to the polar regions, while others were adapted to a more Some grew in size, while others shrunk in size. These dinosaurs were continusouly evolving and becoming more specialized. There were over 9 different Tyrannosaurs, each specialized for a specific time period and environment.

The fossil record shows incredible diversity when it comes to Tyrannosaurs. All of them are large theropod dinosaurs. The Tyrannosaurus family is characterized by a large and robust skull, foreword facing eyes,Īnd short arms. There are currently two other unnamed taxon, and more will probably be discovered. The family of Tyrannosaurus currently contains around 9 genera. The Ceolurosaur clade have been found to have feathers, includine older relatives of the Tyrannosaur family. (such as Carcharodontosaurus, and Gigantosaurus). Is more closely related to birds than other clade of large theropods, the Carnisours The Tyrannosaur family belongs to the Ceolurosauria clade. Only basal groups of Dinosaurs from the Jurassic, when the continents were connected,Īre found in South America, Africa, and Antarctica/Australa It impossible for Tyrannosaurs to migrate there as well. Similarly, South America, Africa and the Australia/Antarctica continents were separated by vast oceans, making It difficult for a huge land animal to migrate there. Now the question becomes, if Tyrannnosaurs could cross to Asia, why couldn't they travel to Europe and Africa from there?Įurope, at the late cretaceous, was a large group of islands separated by the new Atlantic Ocean. It is thought that Tyrannosaurs, with many other Laramidia dinosaurs, That connected northern Laramidia to Asia. The bering land bridge, probably between Alaska and Siberia, Also, at various points in time, it appears there was some kind of land bridge, What about Asia? If Laramidia was an island continent, how did Tyrannosaurs get to Asia? Laramidia (Western North America) and Asia were closer

#Show me a picture of t rex full

This is similar to how Australia is isolated today, and why Australia is full of unique animals. Laramidia was even too far from South America and Eastern North America (Appalachia) for Tyrannosaurs to migrate to. Since it was an island continent, it was separated from the rest of the world by oceans.Ī huge theropod would not have been able to cross oceans to populate other continents. It appears Tyrannosaurs originated in North America on the island continent of Laramidia in the late cretaceous. Why Tyrannosaurs are only found in Laramidia and Asia. and Canada), and probably even Southern Laramidia (South West U.S.). More types of Tyrannosaurs will probably be found in Asia (Mongolia and China), Notice, there are clear gaps in the Tyrannosaur distribution. It was created to show the distribution of Tyrannosaurs. This is only an approximate late cretaceous map. Map of the late Cretaceous showing the distribution of the Tyrannosaurs.