Classification of Warren 1854
G. †Triaenopus Hitchcock 1845
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†Triaenopus baileyanus Hitchcock 1841
†Triaenopus emmonsianus Hitchcock 1841
G. †Brontozoum Hitchcock 1847
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†Brontozoum giganteum Hitchcock 1836
†Brontozoum gracillimum Hitchcock 1844
†Brontozoum loxonyx Hitchcock 1848
†Brontozoum parallelum Hitchcock 1837
†Brontozoum sillimanium Hitchcock 1843
G. †Aethyopus Hitchcock 1848
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†Aethyopus lyellianus Hitchcock 1843
†Aethyopus minor Hitchcock 1848
G. †Argozoum Hitchcock 1848
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†Argozoum disparidigitatum Hitchcock 1848
†Argozoum paridigitatum Hitchcock 1848
G. †Ornithopus Hitchcock 1845
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†Ornithopus gallinaceus Hitchcock 1845
†Ornithopus gracilis Hitchcock 1841