Vertebrates in the Permian

> Amphibians | Early Tetrapods | Fishes | Mammal Relatives | Mammals | Reptiles

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See Vertebrates from the:

		Quaternary
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Trimerorhachis © 2003 James Diffily	Edaphosauridae © 2003 James Diffily	Ctenacanthus amblyxiphias © 2003 Michael J. Everhart
Helicoprion © 2005 Greg McDonald	Petalodus sp. © 2003 Micheal J. Everhart

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