Pachydiscus stallauensis (FOSSIL) (Imkeller, 1901 †)
Pachydiscus stanislausensis (FOSSIL) Anderson, 1958 †
Pachydiscus steinmanni (FOSSIL) (Paulcke, 1907 †)
Pachydiscus subcompressus (FOSSIL) (T. Matsumoto, 1954 †)
Pachydiscus subcompressus obsoletus (FOSSIL) (T. Matsumoto, 1954 †)
Pachydiscus subrobustus (FOSSIL) (Seunes, 1892 †)
Pachydiscus subtililobatus (FOSSIL) (Jimbo, 1894 †)
Pachydiscus sumneri (FOSSIL) (C.J. Maury, 1930 †)
Pachydiscus ultimus (FOSSIL) Macellari, 1986 †
Pachydiscus williamsoni (FOSSIL) (C.J. Maury 1930 †)
Pachydiscus woodringi (FOSSIL) (Reeside, 1947 †)
Pachydiscus yama (FOSSIL) (E. Forbes, 1846 †)
Neodesmoceras mokotibensis (FOSSIL) (E. Matsumoto 1947 †)
Neodesmoceras obsoletiformis (FOSSIL) Jones, 1963 †
Neodesmoceras princeps (FOSSIL) (Anderson, 1958 †)
Neodesmoceras soma (FOSSIL) (E. Forbes, 1846 †)