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