Classification of Palmer 1962

G. †Homagnostus Howell 1935
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Homagnostus comptus Palmer 1962
G. †Komaspidella Kobayashi 1938
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G. †Aphelaspis Resser 1935
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Aphelaspis brachyphasis Palmer 1962
Aphelaspis longispina Palmer 1965
Aphelaspis subditus Palmer 1962
G. †Listroa Palmer 1962
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Listroa toxoura Palmer 1962
G. †Olenaspella Wilson 1956
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Olenaspella evansi Kobayashi 1936
Olenaspella regularis Palmer 1962
Olenaspella separata Palmer 1962
G. †Blountia Walcott 1916
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Invalid names: Homodictya Raymond 1937 [synonym]
G. †Carinamala Palmer 1962
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Carinamala longispina Palmer 1962
G. †Cedaria Walcott 1924
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Cedaria brevifrons Palmer 1962
G. †Coosia Walcott 1911
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Coosia longocula Palmer 1962
G. †Deiracephalus Resser 1935
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Deiracephalus unicornis Palmer 1962