Classification of Cosgriff and Zawiskie 1979

Superfm. †Rhytidosteoidea Cosgriff 1965
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Fm. †Indobrachyopidae Cosgriff and Zawiskie 1979
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G. †Derwentia Cosgriff 1974
G. †Indobrachyops Huene and Sahni 1958
G. †Mahavisaurus Lehman 1966
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Mahavisaurus australis Lehman 1966
G. †Rewana Howie 1972
Fm. †Rhytidosteidae Huene 1920
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G. †Deltasaurus Cosgriff 1965
G. †Peltostega Wiman 1916
G. †Pneumatostega Cosgriff and Zawiskie 1979
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Pneumatostega potamia Cosgriff and Zawiskie 1979
G. †Rhytidosteus Owen 1884