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Dimetrodon

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Dimetrodon 

an extinct genus of predatory mammal-like reptiles of the order Pelycosauria. The Dimetrodon, which grew up to 2.7 m, had dorsal vertebrae with very long spiny appendages, projecting from the dorsal surface and serving, perhaps, to stretch the membrane (dorsal sail), the purpose of which is unclear. There were some ten species. Remains of the Dimetrodon are known from the Permian deposits of North America.

REFERENCE

Osnovy paleontologii: Zemnevodnye, presmykaiushchiesia i ptitsy. Moscow, 1964.


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Young and old readers alike will enjoy these zany short stories about species ranging from velociraptor to dimetrodon to triceratops, baryonyx, and many more as they toil to survive, escape quicksand, escort dinosaur babies, or even run in fear from ghosts
Everybody knows the dimetrodon, a sail-backed animal from the Permian," Lucas said.
Then he was found by a dimetrodon, and when he went to escape that dinosaur, he encountered another one.
 
 
 
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