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Genus: Anguloceras Unklesbay & Young, 1956 † (DB: 3 SP)
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Anguloceras depressum
Unklesbay & A.T. Young, 1956 † (FOSSIL)
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Anguloceras ovatum
Unklesbay & A.T. Young, 1956 † (FOSSIL)
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Anguloceras rotundum
Unklesbay & A.T. Young, 1956 † (FOSSIL)
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Genus: Avaoceras Ulrich & al., 1944 † (DB: 4 SP)
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Avaoceras elongatum
Ulrich & al., 1944 † (FOSSIL)
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Avaoceras longidomum
Ulrich & al., 1944 † (FOSSIL)
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Avaoceras magnisiphonatum
Ulrich & al., 1944 † (FOSSIL)
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Avaoceras wellsense
Ulrich & al., 1944 † (FOSSIL)
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Genus: Bassleroceras Ulrich & Foerste, 1936 † (DB: 17 SP)
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Bassleroceras acinacellum
(R.P. Whitfield, 1886 †) (FOSSIL)
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Bassleroceras alethes
(Billings, 1865 †) (FOSSIL)
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Bassleroceras annulatum
Teichert & Glenister, 1954 † (FOSSIL)
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Bassleroceras beekmanense
(R.P. Whitfield, 1889 †) (FOSSIL)
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Bassleroceras bridgei
Ulrich & al., 1944 † (FOSSIL)
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Bassleroceras champlainense
Kröger & Landing, 2008 † (FOSSIL)
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Bassleroceras dalevillense
Ulrich & al., 1944 † (FOSSIL)
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Bassleroceras kayi
Ulrich & al., 1944 † (FOSSIL)
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Bassleroceras kirbyi
(R.P. Whitfield, 1889 †) (FOSSIL)
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Cyrtoceras kirbyi R.P. Whitfield, 1889 † =» Bassleroceras kirbyi
(R.P. Whitfield, 1889 †)
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Bassleroceras lasallense
Ulrich & al., 1944 † (FOSSIL)
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Bassleroceras microscopium
(Dwight, 1884 †) (FOSSIL)
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Bassleroceras perseus
(Billings, 1865 †) (FOSSIL)
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Orthoceras perseus Billings, 1865 † =» Bassleroceras perseus
(Billings, 1865 †)
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Bassleroceras smithbasinense
Kröger & Landing, 2008 † (FOSSIL)
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Bassleroceras spissiseptum
(Dwight, 1884 †) (FOSSIL)
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Bassleroceras tenuiculum
Ulrich & al., 1944 † (FOSSIL)
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Bassleroceras triangulum
Kröger & Landing, 2008 † (FOSSIL)
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Bassleroceras vassarina
(Dwight, 1884 †) (FOSSIL)
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Cyrtoceras vassarina Dwight, 1884 † =» Bassleroceras vassarina
(Dwight, 1884 †)
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Genus: Diaphoroceras Ulrich & al., 1944 † (DB: 3 SP)
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Diaphoroceras avaense
Ulrich & al., 1944 † (FOSSIL)
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Diaphoroceras belli
Ulrich & al., 1944 † (FOSSIL)
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Diaphoroceras buffaloense
Ulrich & al., 1944 † (FOSSIL)
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Genus: Dwightoceras Ulrich & Foerste, 1936 † (DB: 1 SP)
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Dwightoceras dactyloides
(Dwight, 1884 †) (FOSSIL)
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Genus: Dyscritoceras Ulrich & Foerste, 1936 † (DB: 3 SP)
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Dyscritoceras dictys
(Billings, 1865 †) (FOSSIL)
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Dyscritoceras metellus
(Billings, 1865 †) (FOSSIL)
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Dyscritoceras oxfordense
Ulrich & al., 1944 † (FOSSIL)
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Genus: Lawrenceoceras Ulrich & al., 1944 † (DB: 3 SP)
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Lawrenceoceras breve
Ulrich & al., 1944 † (FOSSIL)
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Lawrenceoceras collinsi
Ulrich & al., 1944 † (FOSSIL)
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Lawrenceoceras confertissimum
(R.P. Whitfield, 1886 †) (FOSSIL)
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Genus: Leptocyrtoceras Ulrich & al., 1944 † (DB: 3 SP)
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Leptocyrtoceras curvatum
Ulrich & al., 1944 † (FOSSIL)
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Leptocyrtoceras powellense
Ulrich & al., 1944 † (FOSSIL)
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Leptocyrtoceras virginianum
Ulrich & al., 1944 † (FOSSIL)
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Genus: Monogonoceras Ulrich & al., 1944 † (DB: 3 SP)
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Monogonoceras alabamense
Ulrich & al., 1944 † (FOSSIL)
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Monogonoceras magnisiphonatum
Ulrich & al., 1944 † (FOSSIL)
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Monogonoceras subrectum
Ulrich & al., 1944 † (FOSSIL)
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Genus: Stylocyrtoceras Ulrich & al., 1944 † (DB: 2 SP)
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Stylocyrtoceras avaense
Ulrich & al., 1944 † (FOSSIL)
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Stylocyrtoceras tantillum
(Stauffer, 1937 †) (FOSSIL)
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Deltoceras tantillum Stauffer, 1937 † =» Stylocyrtoceras tantillum
(Stauffer, 1937 †)
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