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Genus: Calocyrtoceras Foerste, 1936 † (DB: 1 SP)
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Calocyrtoceras cognatum
(Barrande, 1865 †) (FOSSIL)
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Genus: Gaspocyrtoceras Foerste, 1936 † (DB: 1 SP)
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Gaspocyrtoceras clarksoni
Holland, 2000 † (FOSSIL)
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Genus: Lyecoceras Mutvei, 1957 † (DB: 1 SP)
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Lyecoceras columnare
(Marklin, 1857 †) (FOSSIL)
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Genus: Paraphragmites Flower, 1943 † (DB: 1 SP)
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Paraphragmites ascoceroides
Flower, 1943 † (FOSSIL)
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Genus: Cyrtocycloceras Foerste, 1936 (DB: 1 SP)
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Cyrtocycloceras urbanum
(Barrande, 1866 †) (FOSSIL)
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