Dimetrodon Permian Weirdo poster Pteros This small tyrannosaur was found

This small tyrannosaur was found in the polar region of Alaska

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Kosmoceras is an ammonite that lived in the Jurassic Period of what is now Europe

theropods that seem to have developed the ability to glide

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Dimetrodon Permian Weirdo poster Pteros This small tyrannosaur was foundDimetrodon is one of the most iconic of all prehistoric animals. It was a non mammalian synapsid that lived in the Permian Period. Many of its fossils have been found in the southwestern USA, as well as Canada and Germany. Its sail was very likely used in courtship display. 10 mil (0. 25 mm) thick Slightly glossy Fingerprint resistant