Atlantobellerophon zealandicus (FOSSIL) C.T. Trechmann, 1930 †
Gammadiscus somerseti (FOSSIL) (Williams & M. Breger †) USA, Maine
Pseudowarthia diptychosa (FOSSIL) Qiao, 1983 †
Squarrosus junctus (FOSSIL) Qiao, 1983 †