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Genus: Crestjahitus Syssoiev , 1968 † (DB: 5 SP)
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Crestjahitus compressus
A.V. Sysoev, 1968 † (FOSSIL)
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Crestjahitus delphus
(Resser & Endo, 1937 †) (FOSSIL)
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Crestjahitus distortus
(Syssoiev, 1962 †) (FOSSIL)
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Crestjahitus figuratus
(Rozanov & al., 1969 †) (FOSSIL)
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Crestjahitus ornatus
Syssoiev, 1968 † (FOSSIL)
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Subgenus: Hyolithes (Pharetrella) Talent, 1963 † (DB: 1 SP)
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Hyolithes (Pharetrella) pyramidalis
Talent, 1963 † (FOSSIL)
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Genus: Hyolithus Poulsen, 1932 † (DB: 2 SP)
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Hyolithus mimicus
(Cobbold, 1931 †) (FOSSIL)
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Hyolithus pallidus
(Cobbold, 1931 †) (FOSSIL)
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Genus: Borealicornus Sysoev, 1968 † (DB: 1 SP)
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Borealicornus depsilis
A.V. Sysoev, 1968 † (FOSSIL)
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Genus: Jacuticornus Sysoev, 1968 † (DB: 1 SP)
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Jacuticornus tenuistrigatus
(A.V. Sysoev, 1962 †) (FOSSIL)
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Genus: Tuoidachites Missarzehevsky in Rozanov & al., 1969 † (DB: 2 SP)
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Tuoidachites costulatus
Missarzehevsky in Rozanov & al., 1969 † (FOSSIL)
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Tuoidachites figuratus
Missarzehevsky in Rozanov & al., 1969 † (FOSSIL)
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