Classification of Brattstrom 1955

Fm. Anguidae Gray 1825
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G. †Peltosaurus Cope 1872
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Peltosaurus macrodon Brattstrom 1955
Fm. Varanidae Hardwicke and Gray 1824 [monitor lizard]
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Subfm. †Saniwinae Camp 1923
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G. †Saniwa Leidy 1870
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Saniwa brooksi Brattstrom 1955
Fm. Boidae Gray 1825 [boa]
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G. †Boavus Marsh 1871
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Boavus affinis Brattstrom 1955