Classification of the superfamily Delthyridoidea

Superfm. †Delthyridoidea Phillips 1841
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Fm. †Acrospiriferidae Termier and Termier 1949
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Subfm. †Acrospiriferinae Termier and Termier 1949
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G. †Acrospirifer Wedekind 1926
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Acrospirifer murchisoni Castelneau 1843
G. †Xerospirifer Havlicek 1978
Subfm. †Costispiriferinae Termier and Termier 1949
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G. †Costispirifer Copper 1942
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Costispirifer unicus Hall 1867
Subfm. †Elymospiriferinae Johnson and Hou 1994
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G. †Elymospirifer Wang 1974
G. †Perryspirifer Jones and Boucot 1983
Fm. †Cyrtinopsidae Wedekind 1926
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Subfm. †Araspiriferinae Johnson 1994
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G. †Boucotinskia Brunton and Cocks 1967
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Boucotinskia elongata Munthe 1910
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Boucotinskia elongata insignis Hedström 1923
Boucotinskia sulcata Hisinger 1837
Invalid names: Spirifer insignis minor Hedström 1923 [synonym]
Subfm. †Cyrtinopsinae Wedekind 1926
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G. †Kozlowskiellina Boucot 1958
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Kozlowskiellina deltidialis Hedstrom 1923
Kozlowskiellina strawi Boucot 1957
Invalid names: Kozlowskiella Boucot 1957 [replaced]
Fm. †Delthyrididae Waagen 1883
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Subfm. †Delthyridinae Phillips 1841
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G. †Delthyris Dalman 1828
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Delthyris acutilirata Conrad 1842
Delthyris consobrina dOrbigny 1867
Delthyris elegans Muir-Wood 1925
Delthyris elevata Dalman 1828
Delthyris ptychodes Dalman 1828
Delthyris pusio Hisinger 1831
Delthyris rostrata Zieten 1830
Subfm. †Howellellinae Johnson and Hou 1994
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G. †Aldanispirifer Alekseeva 1967
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Aldanispirifer helenae Alekseeva 1967
Invalid names: Holcospirifer Bassett et al. 1976 [synonym]
G. †Howellella Kozlowski 1946
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Howellella anglica Lamont and Gilbert 1945
Howellella crispa Hisinger 1827
Howellella cycloptera Hall 1857
Howellella elegans Muir-Wood 1925
Howellella porcata Jin et al. 1993
Howellella textilis Talent 1963
Invalid names: Crispella Kozlowski 1929 [replaced]
Invalid names: Kozlowskiellininae Boucot 1958 [empty]
Fm. †Filispiriferidae Schemm-Gregory 2008
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G. †Filispirifer Jansen 2001
G. †Leonispirifer Schemm-Gregory 2010
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Leonispirifer leonensis Schemm-Gregory 2010
Fm. †Hysterolitidae Termier and Termier 1949
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Subfm. †Fimbrispiriferinae Pitrat 1965
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G. †Fimbrispirifer Cooper 1942
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G. †Struveina
Subfm. †Hysterolitinae Termier and Termier 1949
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G. †Arduspirifer Mittmeyer 1972
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Invalid names: Concinnispirifer [synonym]
G. †Dixonella
G. †Dyticospirifer Johnson 1966
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G. †Euryspirifer Wedekind 1926
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Euryspirifer assimilis Fuchs 1915
G. †Hysterolites von Schlotheim 1820
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Hysterolites piger Talent 1963
Hysterolites pinguis Talent 1963
Hysterolites tritus Talent 1963
G. †Patriaspirifer Johnson 1995
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Patriaspirifer kobehana Merriam 1940
Patriaspirifer murchisoni Castelneau 1843
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Invalid names: Neodelthyris [synonym]
Fm. †Mucrospiriferidae Pitrat 1965
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Subfm. †Mucrospiriferinae Boucot 1959
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Invalid names: Dmitrispirifer [synonym], Sculptospirifer [synonym]
G. †Mucrospirifer Grabau 1931
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Mucrospirifer mucronatus Conrad 1841
Mucrospirifer refugiensis Savage et al. 1978
Invalid names: Khinganospirifer [synonym]
Subfm. †Tylothyridinae Carter 1972
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G. †Tylothyris North 1920
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Tylothyris brevaurita Carter 1967
Tylothyris minima Campbell and Engel 1963
Tylothyris missouriensis Weller 1906
Tylothyris multicostatus Maxwell 1964
Tylothyris novamexicana Stainbrook 1947