All fossils in the Permian

Page 2 (Showing Results 10 - 14 of 14)

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		Quaternary
		Tertiary
		Cretaceous
		Jurassic
		Triassic
		Permian
		Carboniferous
		Devonian
		Silurian
		Ordovician
		Cambrian
		Precambrian

Edaphosauridae © 2003 James Diffily	Ctenacanthus amblyxiphias © 2003 Michael J. Everhart	Helicoprion © 2005 Greg McDonald
Petalodus sp. © 2003 Micheal J. Everhart	Dimetrodon tracks © 2000 West Virginia Geological and Economic Survey

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