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Genus: Barroisocaulus Gubanov & al., 1995 † (DB: 5 SP)
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Barroisocaulus asiatica
Gubanov & al., 1995 † (FOSSIL)
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Barroisocaulus davyi
(Barrois, 1889 †) (FOSSIL)
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Barroisocaulus kayseri
(Spitz, 1907 †) (FOSSIL)
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Barroisocaulus oliveri
Gubanov & al., 1995 † (FOSSIL)
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Barroisocaulus semiornata
(Spitz, 1907 †) (FOSSIL)
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Genus: Gasconadia Weller & St. Clair, 1928 † (DB: 3 SP)
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Gasconadia floridensis
(Cleland, 1900 †) (FOSSIL)
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Gasconadia mohawkensis
(Cleland, 1900 †) (FOSSIL)
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Gasconadia putilla
(Sardeson, 1896 †) (FOSSIL)
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Genus: Medfracaulus Rohr & al. 2003 † (DB: 5 SP)
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Medfracaulus contracta
(J. Perner, 1907 †) (FOSSIL)
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Medfracaulus cooki
Rohr & al., 2003 † (FOSSIL)
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Medfracaulus sana
(Barrande in J. Perner, 1907 †) (FOSSIL)
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Medfracaulus sinelnikovae
Mazaev, 2016 † (FOSSIL)
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Medfracaulus turriformis
(A. Chernyshev, 1893 †) (FOSSIL)
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Genus: Ptychocaulus Perner, 1907 † (DB: 5 SP)
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Ptychocaulus bivittata
(J.W. Hall, 1852 †) (FOSSIL)
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Ptychocaulus crumena
J. Perner, 1907 † (FOSSIL)
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Ptychocaulus magna
Karczewski, 1980 † (FOSSIL)
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Ptychocaulus rodneyi
Rohr, 1980 † (FOSSIL)
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Ptychocaulus verneuili
(E.F.R.K. Koken, 1889 †) (FOSSIL)
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Genus: Vetotuba Etheridge Jr., 1890 † (DB: 2 SP)
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Vetotuba bauerae
(Cook, 1994 †) (FOSSIL)
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Vetotuba brazieri
R. Etheridge jr., 1890 † (FOSSIL)
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