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