Classification of McGrew et al. 1959

Cl. Amphibia Linnaeus 1758
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Subor. Anura Fischer von Waldheim 1813 [frog]
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Subor. †Anomocoela Nichols 1916
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Fm. Pelobatidae Lataste 1879 [spadefoot toad]
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Subfm. Megophryinae Nobel 1931
Invalid names: Opisthocoela Owen 1859 [empty]
G. †Eorhinophrynus Hecht 1959
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Or. Lacertilia Owen 1842 [lizard]
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Fm. Agamidae Gray 1827
Fm. Amphisbaenidae Gray 1865 [worm lizard]
Fm. Anguidae Gray 1825
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Subfm. †Diploglossinae Boucourt 1873
Subfm. Gerrhonotinae Cope 1864
G. †Melanosaurus Gilmore 1928
Fm. Teiidae Gray 1827
Fm. Varanidae Hardwicke and Gray 1824 [monitor lizard]
Fm. Xantusiidae Baird 1858 [night lizard]
Or. Serpentes Linnaeus 1758 [snake]
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Fm. Aniliidae Fitzinger 1826 [pipe snake]
Fm. Boidae Gray 1825 [boa]
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Subfm. Boinae Gray 1825
Subfm. Erycinae Bonaparte 1825 [sand boa]
G. †Coniophis Marsh 1892
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G. †Peratherium Aymard 1850
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†Peratherium knighti McGrew et al. 1959
G. †Diacodon Cope 1875
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†Diacodon bacchanalis McGrew et al. 1959
†Diacodon edenensis McGrew et al. 1959
G. †Microparamys Wood 1959
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†Microparamys minutus Wilson 1937
Fm. †Sciuravidae Miller and Gidley 1918
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G. †Sciuravus Marsh 1871
G. †Taxymys Marsh 1872
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†Taxymys lucaris Marsh 1872
†Sciuravus nitidus Marsh 1871
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Invalid names: Sciuravus undans Marsh 1871 [synonym]
†Washakius insignis Leidy 1873
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Invalid names: Hemiacodon pygmaeus Wortman 1904 [synonym]