Classification of the superfamily Siphonotretoidea
Superfm. †Siphonotretoidea Kutorga 1848
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Fm. †Siphonotretidae Kutorga 1848
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G. †Acanthambonia Cooper 1956
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†Acanthambonia delicata Holmer 1989
†Acanthambonia klabavensis Havlíček 1982
†Acanthambonia minutisima Cooper 1956
†Acanthambonia minutissima Cooper 1956
†Acanthambonia portranensis Wright 1963
†Acanthambonia virginiensis Cooper 1956
G. †Alichovia
G. †Cyrbasiotreta
G. †Eosiphonotreta Havlíček 1982
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†Eosiphonotreta acrotretomorpha Gorjansky 1969
Invalid names: Quasithambonia Bednarczyk and Biernat 1978 [synonym]
G. †Helmersenia Pander 1861
G. †Karnotreta
G. †Mesotreta
G. †Multispinula Rowell 1962
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†Multispinula bondarevi Nikiforova 1982
†Multispinula cuneata Willard 1928
†Multispinula cuneata cavata Williams 1962
†Multispinula scotica Davidson 1877
G. †Nushbiella Popov 1986
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†Nushbiella dubia Popov 1977
†Nushbiella lillianae Holmer 1989
†Nushbiella parvula Popov 1980
G. †Orbaspina Valentine and Brock 2003
G. †Schizambon Walcott 1884
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†Schizambon cuneatus Willard 1928
†Schizambon duplicimuratum Hudson 1905
†Schizambon typicalis Walcott 1884
G. †Siphonobolus
G. †Siphonotreta
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†Siphonotreta americana Cooper 1956
†Siphonotreta curta Dana 1849
†Siphonotreta unguiculata Eichwald 1829
G. †Siphonotretella Popov and Holmer 1994
Invalid names: Acanthamboniinae Cooper 1956 [empty], Schizamboninae Havlíček 1982 [empty]