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Genus: Amphelissa Etheridge, Jr., 1921 † (DB: 2 SP)
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Amphelissa carinatum
Heidecker, 1959 † (FOSSIL)
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Amphelissa isisensis
R. Etheridge jr., 1921 † (FOSSIL)
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Genus: Boucotspira Rohr, 1980 † (DB: 8 SP)
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Boucotspira antelopensis
(Rohr, 1996 †) (FOSSIL)
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Boucotspira carinifer
(E.F.R.K. Koken, 1896 †) (FOSSIL)
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Boucotspira fimbriata
Rohr, 1980 † (FOSSIL)
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Boucotspira lamellosa
(Lindström, 1884 †) (FOSSIL)
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Boucotspira ordovicia
(Longst, 1924 †) (FOSSIL)
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Boucotspira ozawai
(O. Kobayashi, 1930 †) (FOSSIL)
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Boucotspira visbeyensis
(Lindstrom, 1884 †) (FOSSIL)
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Boucotspira wisbyensis
(Lindström, 1884 †) (FOSSIL)
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Genus: Burdikinia Knight, 1937 † (DB: 2 SP)
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Burdikinia axionoides
(R. Etheridge jr., 1921 †) (FOSSIL)
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Burdikinia burdekinensis
(R. Etheridge jr., 1917 †) (FOSSIL)
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Genus: Helicotoma Salter, 1859 † (DB: 25 SP)
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Helicotoma blodgetti
Rohr, 1988 † (FOSSIL)
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Helicotoma brocki
Foerste, 1912 † (FOSSIL)
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Helicotoma declivis
Safford, 1869 † (FOSSIL)
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Helicotoma gorgonea
Billings, 1865 † (FOSSIL)
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Helicotoma granosa
Ulrich & Scofield, 1897 † (FOSSIL)
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Helicotoma griffinorum
Rohr, 1980 † (FOSSIL)
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Helicotoma kanekoi
T. Kobayashi, 1931 † (FOSSIL)
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Helicotoma marginata
Ulrich & Scofield, 1897 † (FOSSIL)
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Helicotoma miser
Billings, 1865 † (FOSSIL)
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Helicotoma missouriensis
R.M. Branson, 1909 † (FOSSIL)
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Helicotoma oriens
J. Perner, 1903 † (FOSSIL)
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Helicotoma patula
Lamont † (FOSSIL)
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Helicotoma planulata
Salter, 1859 † (FOSSIL)
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Helicotoma planulata muricata
Salter, 1859 † (FOSSIL)
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Helicotoma planulata robusta
Salter, 1859 † (FOSSIL)
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Helicotoma planulatoides
Ulrich & Scofield, 1897 † (FOSSIL)
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Helicotoma proserpina
Billings, 1865 † (FOSSIL)
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Helicotoma robinsoni
Rohr, 1988 † (FOSSIL)
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Helicotoma robusta
Ulrich & Scofield, 1897 † (FOSSIL)
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Helicotoma similis
R.P. Whitfield, 1890 † (FOSSIL)
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Helicotoma subquadrata
Ulrich & Scofield, 1897 † (FOSSIL)
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Helicotoma superba
E.F.R.K. Koken, 1897 † (FOSSIL)
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Helicotoma tennesseensis
Safford, 1869 † (FOSSIL)
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Helicotoma tritonia
Billings, 1865 † (FOSSIL)
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Helicotoma umbilicata
Ulrich & Scofield, 1897 † (FOSSIL)
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Helicotoma verticalis
Ulrich & Scofield, 1897 † (FOSSIL)
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Helicotoma whiteavesiana
W.J. Raymond, 1908 † (FOSSIL)
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Genus: Lophonema Purdue & Miser, 1916 † (DB: 11 SP)
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Lophonema abrupta
(Billings, 1859 †) (FOSSIL)
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Lophonema calphurnia
(Billings, 1865 †) (FOSSIL)
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Lophonema circumlirata
(R.P. Whitfield, 1886 †) (FOSSIL)
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Lophonema costata
Kobayashi, 1959 † (FOSSIL)
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Lophonema frydai
Rohr, 1994 † (FOSSIL)
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Lophonema orientalia
Yü, 1961 † (FOSSIL)
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Lophonema peccatonica
(Sardeson, 1896 †) (FOSSIL)
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Lophonema perstriata
(Billings, 1859 †) (FOSSIL)
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Lophonema taneyensis
(Cullison, 1944 †) (FOSSIL)
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Lophonema tricarinata
(Billings, 1859 †) (FOSSIL)
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Lophonema wuhuensis
Endo, 1935 † (FOSSIL)
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Genus: Ophiletina Ulrich & Scofield, 1897 † (DB: 5 SP)
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Ophiletina angularis
Ulrich & Scofield, 1897 † (FOSSIL)
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Ophiletina bromidensis
(Rohr & Johns, 1990 †) (FOSSIL)
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Ophiletina fausta
(Sardeson, 1896 †) (FOSSIL)
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Ophiletina shokoriense
O. Kobayashi, 1930 † (FOSSIL)
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Ophiletina sublaxa
Ulrich & Scofield, 1897 † (FOSSIL)
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Genus: Palaeomphalus Koken & Perner, 1925 † (DB: 3 SP)
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Palaeomphalus glabra
E.F.R.K. Koken & J. Perner, 1925 † (FOSSIL)
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Palaeomphalus obtusangulus
(Angelin & Lindström, 1880 †) (FOSSIL)
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Palaeomphalus olsoni
Rohr, 1980 † (FOSSIL)
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Genus: Vivianella Cox, 1958 † (DB: 1 SP)
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Vivianella ornata
(E.F.R.K. Koken, 1896 †) (FOSSIL)
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