Classification of Crasquin-Soleau 1997
Or. Palaeocopida Henningsmoen 1953
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G. †Amphissites Girty 1910
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†Amphissites carinodus Cooper 1957
†Amphissites centronotus Ulrich and Bassler 1906
G. †Healdia Roundy 1926
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†Healdia carinata Cooper 1964
†Healdia cincta Coryell and Billing 1932
G. Bairdia M'Coy 1844
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Subg. †Bairdia (Cryptobairdia) Sohn 1960
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†Bairdia (Cryptobairdia) folgeri Kellett 1934
†Bairdia (Cryptobairdia) seminalis Knight 1928
†Bairdia elongatella Sohn 1960
†Bairdia permiana Hamilton 1942
†Bairdia subfusiformis Hamilton 1942
Superfm. †Kloedenelloidea Ulrich and Bassler 1908
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Fm. †Miltonellidae Sohn 1950
G. †Victoria Crasquin-Soleau 1994
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†Victoria hemicircularia Crasquin-Soleau 1994
†Victoria pinantonensis Crasquin-Soleau 1994
†Victoria postpleta Crasquin-Soleau 1994
Invalid names: Kloedcytherellidae Kozur 1985 [empty]
Subor. †Beyrichicopina Scott 1961
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Invalid names: Drepanelloidea Ulrich and Bassler 1923 [empty]
Superfm. †Kirkbyoidea Ulrich and Bassler 1906
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Fm. †Kellettinidae Sohn 1954
Fm. †Placideidae Schneider 1956
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Fm. †Scrobiculidae Posner 1951
Subg. †Bairdia (Rectobairdia) Sohn 1960
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†Bairdia (Rectobairdia) powersi Kellett 1934
Fm. †Quasillitidae Coryell and Malkin 1936
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G. †Valentinia Crasquin-Soleau 1994
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†Valentinia dercourti Crasquin-Soleau 1994
†Valentinia harperensis Crasquin-Soleau 1994
†Valentinia vermiformis Crasquin-Soleau 1994
Superfm. †Kirkbyacea Ulrich and Bassler 1906
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Invalid names: Scrobiculacea Pozner 1951 [synonym]