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Fossil collection records
Fossil organisms
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Classifications of taxa in groups
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Classification of Spindler et al. 2015
Unr.
Synapsida
Osborn 1903 [synapsid]
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Unr. †
Eupelycosauria
Kemp 1982
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Unr. †
Sphenacomorpha
Ivakhnenko 2003
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Unr. †
Sphenacodontia
Romer and Price 1940
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G. †
Cutleria
Lewis and Vaughn 1965
G. †
Ianthodon
Kissel and Reisz 2004
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†
Ianthodon schultzei
Kissel and Reisz 2004
Unr. †
Haptodontiformes
Spindler 2015
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G. †
Haptodus
Gaudry 1886