Classification of Nicholls and Meckert 2002

Lepidosauria Haeckel 1866 [lepidosaur]
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Squamata Oppel 1811 [squamates]
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Lacertilia Owen 1842 [lizard]
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Fm. †Mosasauridae Gervais 1852 [mosasaur]
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Subfm. †Mosasaurinae Gervais 1853
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Tr. †Leiodontini Lingham-Soliar 1995
Sauropterygia Owen 1861
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Plesiosauria de Blainville 1835 [plesiosaur]
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Fm. †Elasmosauridae Cope 1869 [elasmosaur]
Chelonioidea Baur 1893 [sea turtle]
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Fm. †Desmatochelyidae Williston 1894
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G. †Desmatochelys Williston 1894
G. †Kourisodon Nicholls and Meckert 2002
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Kourisodon puntledgensis Nicholls and Meckert 2002