Classification of Baird 1986

Fm. †Procolophonidae Lydekker 1889
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G. †Procolophonichnium Nopcsa 1923
G. †Rutiodon Emmons 1856
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Invalid names: Palaeonornis Emmons 1857 [nomen dubium], Palaeonornis struthionoides Emmons 1857 [nomen dubium]