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Genus: Cyrtogomphoceras Foerste, 1924 † (DB: 23 SP)
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Cyrtogomphoceras angustisiphonatum
Miller † (FOSSIL)
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Cyrtogomphoceras baffinense
Foerste, 1928 † (FOSSIL)
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Cyrtogomphoceras baffinense Roy, 1941 † =» Cyrtogomphoceras baffinense
Foerste, 1928 †
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Cyrtogomphoceras contractum
Foerste, 1935 † (FOSSIL)
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Cyrtogomphoceras curvatum
Troedsson, 1929 † (FOSSIL)
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Cyrtogomphoceras dowlingi
(Foerste, 1928 †) (FOSSIL)
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Wtnnipegoccras dowlingi Foerste, 1928 † =» Cyrtogomphoceras dowlingi
(Foerste, 1928 †)
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Cyrtogomphoceras foerstei
Miller & Furnish, 1937 † (FOSSIL)
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Cyrtogomphoceras furnishi
Roy, 1941 † (FOSSIL)
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Cyrtogomphoceras intermedium
(J.J.F. Whiteaves, 1897 †) (FOSSIL)
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Cyrtogomphoceras landerense
Foerste, 1935 † (FOSSIL)
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Cyrtogomphoceras magnum
(J.J.F. Whiteaves, 1890 †) (FOSSIL)
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Oncoceras magnum J.J.F. Whiteaves, 1890 † =» Cyrtogomphoceras magnum
(J.J.F. Whiteaves, 1890 †)
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Cyrtogomphoceras milleri
(Roy, 1941 †) (FOSSIL)
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Diestoceras milleri Roy, 1941 † =» Cyrtogomphoceras milleri
(Roy, 1941 †)
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Cyrtogomphoceras minor
Foerste, 1935 † (FOSSIL)
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Cyrtogomphoceras nutatum
(Foerste & Savage †) (FOSSIL)
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Cyrtogomphoceras perexpansum
Foerste, 1935 † (FOSSIL)
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Cyrtogomphoceras popoagiense
Foerste, 1935 † (FOSSIL)
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Cyrtogomphoceras rotundum
Miller, 1932 † (FOSSIL)
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Cyrtogomphoceras sacculus
Troedsson, 1929 † (FOSSIL)
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Cyrtogomphoceras schucherti
Flower, 1952 † (FOSSIL)
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Cyrtogomphoceras shamattawaense
Foerste & Savage, 1927 † (FOSSIL)
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Cyrtogomphoceras thompsoni
Foerste, 1928 † (FOSSIL)
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Cyrtogomphoceras turgidum
Troedsson, 1929 † (FOSSIL)
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Cyrtogomphoceras vicinum
Foerste, 1935 † (FOSSIL)
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Cyrtogomphoceras whiteavesi
(S.A. Miller, 1897 †) (FOSSIL)
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Oncoceras gibbosum J.J.F. Whiteaves, 1889 † =» Cyrtogomphoceras whiteavesi
(S.A. Miller, 1897 †)
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Oncoceras whiteavesi S.A. Miller, 1897 † =» Cyrtogomphoceras whiteavesi
(S.A. Miller, 1897 †)
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Genus: Kiaeroceras Strand, 1934 † (DB: 2 SP)
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Kiaeroceras frognoyense
E. Strand, 1934 † (FOSSIL)
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Kiaeroceras heroyense
E. Strand, 1934 † (FOSSIL)
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Genus: Konglungenoceras Sweet, 1959 † (DB: 1 SP)
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Konglungenoceras norvegicum
Sweet, 1959 † (FOSSIL)
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Genus: Landeroceras Foerste, 1935 † (DB: 1 SP)
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Landeroceras prolatum
(Miller, 1932 †) (FOSSIL)
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Diestoceras prolatum Miller, 1932 † =» Landeroceras prolatum
(Miller, 1932 †)
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Genus: Strandoceras Flower, 1946 † (DB: 6 SP)
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Strandoceras orvikui
Kröger, 2007 † (FOSSIL)
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Strandoceras schmidti
(Teichert, 1930 †) (FOSSIL)
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Strandoceras sonax
(Salter, 1858 †) (FOSSIL)
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Strandoceras sphinx
(A. Schmidt, 1858 †) (FOSSIL)
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Protophragmoceras sphinx A. Schmidt, 1858 † =» Strandoceras sphinx
(A. Schmidt, 1858 †)
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Strandoceras strandi
(Sweet, 1958 †) (FOSSIL)
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Protophragmoceras strandi Sweet, 1958 † =» Strandoceras strandi
(Sweet, 1958 †)
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Strandoceras tyriense
(E. Strand, 1934 †) (FOSSIL)
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Protophragmoceras tyriense E. Strand, 1934 † =» Strandoceras tyriense
(E. Strand, 1934 †)
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Genus: Ulrichoceras Foerste, 1928 † (DB: 1 SP)
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Ulrichoceras beloitense
Foerste, 1928 † (FOSSIL)
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