Classification of Parrish 1993

Unr. †Archosauriformes Gauthier 1986
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Unr. Archosauria Cope 1869 [archosaur]
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Unr. †Crurotarsi Sereno and Arcucci 1990
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Fm. †Ornithosuchidae Huene 1908
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G. †Riojasuchus Bonaparte 1969
Invalid names: Crocodylotarsi Benton and Clark 1988 [empty]
Unr. Ornithodira Gauthier 1986 [ornithodiran]
G. †Euparkeria Broom 1913
Fm. †Proterochampsidae Romer 1966
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G. †Chanaresuchus Romer 1971
G. †Proterochampsa Reig 1959
G. †Proterosuchus Broom 1903
Invalid names: Erythrosuchia Bonaparte 1984 [empty]