Dimetrodon Permian Weirdo poster Pteros Spinosaurus is seen on this

Spinosaurus is seen on this face mask with an updated tail

theropods that seem to have developed the ability to glide

XS S M L XL 2XL Body Length (inches) 26 27 28 29 30 31 Body Width (inches) 16 ¼ 18 ¼ 20 ¼ 22 ¼ 24 ¼ 26 ¼

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

Dimetrodon Permian Weirdo poster Pteros Spinosaurus is seen on thisDimetrodon 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