Genus: Catasigaloceras Buckman, 1923 † (DB: 1 SP, 1 IMG)
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Subgenus: Cosmoceras (Gulielmiceras) Buckman , 1920 † (syn: Guleimiceras - DB: 2 SP, 1 IMG)
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Genus: Gowericeras Buckman , 1921 † (DB: 2 SP, 0 IMG)
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Genus: Kepplerites Neumayr & Uhlig, 1892 † (DB: 5 SP, 3 IMG)
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Genus: Kosmoceras Sowerby, 1816 † (syn: Cosmoceras, Hoplikosmoceras - DB: 14 SP, 14 IMG)
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Genus: Seymourites Ravn, 1911 † (DB: 8 SP, 0 IMG)
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Genus: Sigaloceras Hyatt in Eastman-Zittel, 1900 † (DB: 1 SP, 1 IMG)
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Genus: Spinikosmoceras Buckman, 1924 † (syn: Spinokosmoceras - DB: 2 SP, 1 IMG)
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Genus: Zugokosmoceras Jason † (DB: 1 SP, 1 IMG)
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