Classification of Wahlman 1992
G. †Bellerophon de Montfort 1808
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†Bellerophon nana Ulrich and Scofield 1897
†Bellerophon subglobulus Ulrich and Scofield 1897
G. †Sinuites Koken 1896
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†Sinuites cancellatus Hall 1847
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Invalid names: Sinuites angularis Wilson 1951 [synonym], Sinuites cancellatus cancellatus Hall 1847 [replaced], Sinuites liratus Wilson 1951 [synonym]
†Sinuites globularis Miller and Faber 1894
†Sinuites granistriatus Ulrich and Scofield 1897
†Sinuites obesus Ulrich and Scofield 1897
†Sinuites pervoluta Ulrich and Scofield 1897
†Sinuites planodorsatus Ulrich and Scofield 1897
†Sinuites subcompressa Ulrich and Scofield 1897
G. †Archinacella Ulrich and Scofield 1897
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†Archinacella alta Wahlman 1992
†Archinacella arca Wahlman 1992
†Archinacella cingulata Ulrich and Scofield 1897
†Archinacella davisi Wahlman 1992
†Archinacella depressa Ulrich and Scofield 1897
†Archinacella indianensis Miller 1892
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Invalid names: Archinacella richmondensis Ulrich and Scofield 1897 [synonym]
†Archinacella pulaskiensis Foerste 1914
†Archinacella rugatina Ulrich and Scofield 1897
†Archinacella simulatrix Ulrich and Scofield 1897
†Archinacella valida Sardeson 1892
Or. Archaeogastropoda Thiele 1925
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Subor. †Bellerophontina Ulrich and Scofield 1897
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Superfm. †Bellerophontacea M'Coy 1851
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Fm. †Bellerophontidae M'Coy 1851
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Subfm. †Bellerophontinae M'Coy 1851
Subfm. †Bucanopsinae Wahlman 1992
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G. †Bucanopsis Ulrich and Scofield 1897
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†Bucanopsis carinifera Ulrich and Scofield 1897
†Bucanopsis diabloensis Wahlman 1992
G. †Sphenosphaera Knight 1945
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†Sphenosphaera burginensis Ulrich and Scofield 1897
†Sphenosphaera capax Ulrich and Scofield 1897
†Sphenosphaera clausus Ulrich and Scofield 1897
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Invalid names: Sphenosphaera rogersensis Foerste 1914 [synonym]
†Sphenosphaera mohri Miller 1874
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Invalid names: Bellerophon cincinnatiensis Miller and Faber 1894 [synonym]
†Sphenosphaera recurvus Ulrich and Scofield 1897
†Sphenosphaera subangularis Ulrich and Scofield 1897
†Sphenosphaera troosti de Ferrusac and d'Orbigny 1840
Fm. †Bucaniidae Ulrich and Scofield 1897
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Subfm. †Bucaniinae Ulrich and Scofield 1897
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G. †Bucania Hall 1847
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†Bucania crassa Koken 1896
†Bucania crassa Ulrich and Scofield 1897
†Bucania emmonsi Ulrich and Scofield 1897
†Bucania frankfortensis Ulrich and Scofield 1897
†Bucania halli Ulrich and Scofield 1897
†Bucania lindsleyi Safford 1869
†Bucania micronema Ulrich and Scofield 1897
†Bucania nashvillensis Ulrich and Scofield 1897
†Bucania peracuta Ulrich and Scofield 1897
†Bucania pojetai Wahlman 1992
†Bucania rugatina Ulrich and Scofield 1897
†Bucania simulatrix Ulrich and Scofield 1897
†Bucania singularis Ulrich and Scofield 1897
†Bucania subangulata Ulrich and Scofield 1897
†Bucania sublata Ulrich and Scofield 1897
G. †Eobucania Kobayashi 1955
G. †Salpingostoma Roemer 1876
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†Salpingostoma buelli Whitfield 1878
†Salpingostoma kentuckyense Ulrich and Scofield 1897
†Salpingostoma richmondensis Ulrich and Scofield 1897
Subfm. †Plectonotinae Boucot and Yochelson 1966
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G. †Plectonotus Clarke 1899
G. †Tetranota Ulrich and Scofield 1897
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†Tetranota bidorsata Hall 1847
†Tetranota obsoleta Ulrich and Scofield 1897
†Tetranota rugosa Emmons 1855
†Tetranota sexcarinata Ulrich and Scofield 1897
†Tetranota wisconsinensis Whitfield 1878
G. †Tritonophon Öpik 1953
Subfm. †Salpingostomatinae Koken and Perner 1925
Subfm. †Undulabucaniinae Wahlman 1992
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G. †Undulabucania Wahlman 1992
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†Undulabucania gorbyi Miller 1892
†Undulabucania punctifrons Emmons 1842
Fm. †Carinaropsidae Ulrich and Scofield 1897
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Subfm. †Carinaropsinae Ulrich and Scofield 1897
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G. †Carinaropsis Hall 1847
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†Carinaropsis acuta Ulrich and Scofield 1897
†Carinaropsis cunulae Hall 1861
†Carinaropsis cymbula Hall 1861
†Carinaropsis explanata Ulrich and Scofield 1897
G. †Gyrospira Boucot 1956
Subfm. †Pterothecinae Wenz 1938
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G. †Cyclotheca Teichert 1935
G. †Pterotheca Salter 1853
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†Pterotheca angusta Raymond 1921
†Pterotheca expansa Emmons 1842
†Pterotheca harviei Foerste 1924
†Pterotheca saffordi Hall 1861
Invalid names: Pedasionlinae Wahlman 1992 [empty]
Fm. †Euphemitidae Knight 1956
Fm. †Tropidodiscidae Knight 1956
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G. †Phragmolites Conrad 1838
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†Phragmolites bellulus Ulrich and Scofield 1897
†Phragmolites cellulosus Ulrich and Scofield 1897
†Phragmolites compressus Conrad 1838
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Invalid names: Phragmolites similis Ulrich and Scofield 1897 [synonym]
†Phragmolites dyeri Hall 1872
†Phragmolites elegans Miller 1874
†Phragmolites grandis Ulrich and Scofield 1897
G. †Tropidodiscus Meek and Worthen 1866
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†Tropidodiscus cristatus Safford 1869
†Tropidodiscus magnus Miller 1878
†Tropidodiscus subacutus Ulrich and Scofield 1897
Cl. Monoplacophora Knight 1952
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Or. †Cyrtonellida Horný 1963
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Superfm. †Cyrtonellacea Knight and Yochelson 1958
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Fm. †Cyrtolitidae Miller 1889
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G. †Cyrtolites Conrad 1838
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Subg. †Cyrtolites (Paracyrtolites) Wahlman 1992
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†Cyrtolites (Paracyrtolites) carinatus Miller 1874
†Cyrtolites (Paracyrtolites) parvus Ulrich and Scofield 1897
†Cyrtolites (Paracyrtolites) subplanus Ulrich and Scofield 1897
†Cyrtolites disjunctus Ulrich and Scofield 1897
†Cyrtolites ornatus Conrad 1838
†Cyrtolites thraivensis Reed 1921
Fm. †Cyrtonellidae Knight and Yochelson 1958
Fm. †Multifariidae Bjalyy 1973
Fm. †Sinuitidae Dall 1913
Invalid names: Cyclocyrtonellidae Horný 1962 [empty]
Superfm. †Helcionellacea Wenz 1938
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Fm. †Helcionellidae Wenz 1938
Fm. †Yochelcionellidae Runnegar and Jell 1976
Or. Tryblidiida Lemche 1957
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Superfm. †Archinacellacea Knight 1956
Superfm. †Kirengellacea Starobogatov 1970
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Fm. †Archaeophialidae Knight and Yochelson 1958
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Fm. †Hypseloconidae Knight 1956
Fm. †Kirengellidae Rozov 1975
Invalid names: Romaniellidae Rozov 1975 [empty]
Invalid names: Palaeacmaeidae Grabau and Shimer 1909 [empty]
Superfm. †Tryblidioidea von Zittel 1899
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Fm. †Proplinidae Knight and Yochelson 1960
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G. †Vallatotheca Foerste 1914
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†Vallatotheca manitoulini Foerste 1914
†Vallatotheca unguiformis Ulrich and Scofield 1897
Invalid names: Bipulvinidae Starobogatov 1970 [empty], Drahomiridae Knight and Yochelson 1960 [empty], Neopilinidae Knight and Yochelson 1958 [empty]
†Bellerophon mohri Miller 1874
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Invalid names: Bellerophon parksi Foerste 1924 [synonym]
Subfm. †Tryblidiinae von Zittel 1899
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†Cyrtolites retrorsus Ulrich and Scofield 1897
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Invalid names: Cyrtolites fillmorensis Ulrich and Scofield 1897 [synonym]
†Cyrtolites nodosus Salter and Aveline 1854
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†Cyrtolites nodosus nodosus Salter and Aveline 1854
Subg. †Bellerophon (Bellerophon) de Montfort 1808
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†Bellerophon (Bellerophon) bilineatus Ulrich and Scofield 1897
†Bellerophon (Bellerophon) subpatula Ulrich and Scofield 1897
Subg. †Cyrtolites (Cyrtolites) Conrad 1838
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†Cyrtolites (Cyrtolites) claysferryensis Wahlman 1992
†Cyrtolites (Cyrtolites) hornyi Wahlman 1992
†Cyrtolites (Cyrtolites) minor Ulrich and Scofield 1897
†Cyrtolites (Cyrtolites) retrorsus Ulrich and Scofield 1897