Classification of Langston and Gasparini 1997

G. †Sebecus Stirton 1953
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Sebecus huilensis Langston 1965
Fm. Gavialidae Adams 1854
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G. †Gryposuchus Gürich 1912
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Gryposuchus colombianus Langston 1965
Gryposuchus jessei Gürich 1912
Gryposuchus neogaeus Rusconi 1933
Invalid names: Rhamphostomopsis Rusconi 1933 [synonym]
Fm. Crocodylidae Cuvier 1807 [crocodile]
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Invalid names: Leptorramphus Ambrosetti 1890 [nomen dubium], Leptorramphus entrerrianus Ambrosetti 1890 [nomen dubium], Oxysdonsaurus striatus Ambrosetti 1890 [nomen dubium]
G. †Mourasuchus Price 1964
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Mourasuchus atopus Langston 1965
Mourasuchus nativus Gasparini 1985
Invalid names: Nettosuchus Langston 1965 [synonym]