Genus: Cloudia Knight , 1947 † (DB: 1 SP, 1 IMG)
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Genus: Cyclocyrtonella Horný , 1962 † (DB: 1 SP, 0 IMG)
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Genus: Cyrtolites Conrad , 1838 † (syn: Microceras, Cyrtolithes - DB: 25 SP, 5 IMG)
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Subgenus: Cyrtolites (Cyrtonella) Hall, 1859 † (DB: 3 SP, 0 IMG)
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Genus: Cyrtonellopsis Yochelson , 1958 † (DB: 2 SP, 0 IMG)
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Genus: Kolihadiscus Horný , 1992 † (DB: 3 SP, 1 IMG)
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Genus: Neocyrtolites Perner, 1903 † (DB: 1 SP, 0 IMG)
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Genus: Paracyrtolites Wahlman , 1992 † (DB: 3 SP, 0 IMG)
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Genus: Quasisinuites Horný , 1997 † (DB: 1 SP, 0 IMG)
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Genus: Sinuella Knight, 1947 † (DB: 1 SP, 1 IMG)
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