Classification of Linsley and Kier 1984
Cl. †Paragastropoda Linsley and Kier 1984
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Superfm. †Onychochiloidea Koken 1925
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Fm. †Clisospiridae Miller 1889
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Subfm. †Atracurinae Horný 1964
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G. †Angulospira Wängberg-Eriksson 1979
G. †Antigyra Horný 1964
G. †Antizyga Horný 1964
G. †Atracura Horný 1964
G. †Bodospira Wängberg-Eriksson 1979
G. †Mimospira Koken and Perner 1925
G. †Tapinogyra Wängberg-Eriksson 1979
G. †Undospira Wängberg-Eriksson 1979
Fm. †Onychochilidae Koken and Perner 1925
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G. †Antispira Perner 1903
G. †Helicotis Koken and Perner 1925
G. †Hyperstrophema Horný 1964
G. †Invertospira Horný 1964
G. †Kobayashiella Endo 1937
G. †Laeogyra Perner 1903
G. †Matherella Walcott 1912
G. †Matherellina Kobayashi 1933
G. †Onychochilus Lindström 1884
G. †Pervertina Horný 1964
G. †Protoscaevogyra Kobayashi 1939
G. †Sinistracirsa Cossmann 1908
G. †Versispira Perner 1903
Invalid names: Hyperstophina Linsley and Kier 1984 [empty], Orthostrophina Linsley and Kier 1984 [empty]
Or. †Hyperstrophina Linsley and Kier 1984
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Superfm. †Euomphaloidea White 1877
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Fm. †Euomphalidae White 1877
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G. †Amphiscapha Knight 1942
G. †Austerum Heidecker 1959
G. †Barnesella Bridge and Cloud 1947
G. †Centrifugus Bronn 1835
G. †Cylicioscapha Yochelson 1956
G. †Discotropis Yochelson 1956
G. †Ecculiomphalus Portlock 1843
G. †Euomphalopsis Ulrich et al. 1931
G. †Euomphalus Sowerby 1814
G. †Labrocuspis Heidecker 1959
G. †Lecanospira Butts 1926
G. †Leptomphalus Yochelson 1956
G. †Lesueurilla Koken 1898
G. †Lytospira Koken 1896
G. †Mastigospira La Rocque 1949
G. †Nevadaspira Yochelson 1971
G. †Ophiletina Ulrich and Scofield 1897
G. †Phanerotinus Sowerby 1844
G. †Planotectus Yochelson 1956
G. †Pleuronotus Hall 1879
G. †Poleumita Clarke and Ruedemann 1903
G. †Serpulospira Cossmann 1915
G. †Sinutropis Perner 1903
G. †Straparollus de Montfort 1810
Fm. †Omphalocirridae Wenz 1938
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G. †Hypomphalocirrus Linsley 1973
G. †Liomphalus Chapman 1916
G. †Omphalocirrus de Ryckholt 1860
Fm. †Omphalotrochidae Knight 1945
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G. †Babylonites Yochelson 1956
G. †Diploconula Yochelson 1956
G. †Omphalotrochus Meek 1864
G. †Orecopia Knight 1945
Fm. †Oriostomatidae Koken 1896
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G. †Beraunia Knight 1937
G. †Morphotropis Perner 1903
G. †Oriostoma Munier-Chalmas 1876
Fm. †Maclureadae Carpenter 1861
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G. †Macluritella Kirk 1927
G. †Maclurites Le Sueur 1818
G. †Palliseria Wilson 1924
G. †Scaevogyra Whitfield 1878
G. †Teiichispira Yochelson and Jones 1968