Omphaloptycha extensa (FOSSIL) E.A.L. Kittl, 1899 †
Omphaloptycha gansuensis (FOSSIL) Tong & Erwin, 2001 †
Omphaloptycha heeri (FOSSIL) E.A.L. Kittl, 1894 †
Omphaloptycha hormolira (FOSSIL) Batten & A. Stokes,1986 †
Omphaloptycha humilis (FOSSIL) (Stoppani, 1858 †)
Omphaloptycha inflata (FOSSIL) (Stoppani, 1857 †)
Omphaloptycha irritata (FOSSIL) E.A.L. Kittl, 1894 †
Omphaloptycha jenksi (FOSSIL) F. Haas, 1953 †
Omphaloptycha laticonvexa (FOSSIL) Wang, 1980 †
Omphaloptycha lineata (FOSSIL) Böhm, 1895 †
Omphaloptycha maironii (FOSSIL) (Stoppani, 1857 †)
Omphaloptycha marianii (FOSSIL) E.A.L. Kittl, 1899 †
Omphaloptycha nymphoides (FOSSIL) (Stoppani, 1858 †)
Omphaloptycha obesa (FOSSIL) Smith, 1927 †
Omphaloptycha pachygaster (FOSSIL) E.A.L. Kittl, 1894 †
Omphaloptycha peracuta (FOSSIL) (Stoppani, 1857 †)
Omphaloptycha pinii (FOSSIL) (Stoppani, 1857 †)
Omphaloptycha polyphemus (FOSSIL) E.A.L. Kittl, 1899 †
Omphaloptycha princeps (FOSSIL) (Stoppani, 1858 †)
Omphaloptycha pupoides (FOSSIL) (Stoppani, 1857 †)
Omphaloptycha quadricarinata (FOSSIL) (Stoppani, 1858 †)
Omphaloptycha retracta (FOSSIL) E.A.L. Kittl, 1894 †
Omphaloptycha reyeri (FOSSIL) E.A.L. Kittl, 1894 †
Omphaloptycha rosthorni (FOSSIL) (R. Hoernes, 1856 †)
Omphaloptycha scalaris (FOSSIL) Yin & E.L. Yochelson,1983 †
Omphaloptycha schmidti (FOSSIL) Assmann, 1924 †
Omphaloptycha shastensis (FOSSIL) Smith, 1927 †
Omphaloptycha speciosa (FOSSIL) F. Haas, 1953 †
Omphaloptycha subextensa (FOSSIL) E.A.L. Kittl, 1899 †
Omphaloptycha sulcellata (FOSSIL) (Stoppani, 1858 †)
Omphaloptycha turris (FOSSIL) (Stoppani, 1857 †)
Omphaloptycha zitteli (FOSSIL) Böhm, 1895 †
Omphaloptychia cingulata (FOSSIL) Batten, 1985 †
Omphaloptychia laevisphaera (FOSSIL) Batten & A. Stokes,1986 †
Omphaloptychia paleozoica (FOSSIL) Batten, 1985 †
Palaeoniso dubius (FOSSIL) E.A.L. Kittl, 1894 †
Palaeoniso leonhardi (FOSSIL) E.A.L. Kittl, 1894 †
Pustulifer peruvianus (FOSSIL) F. Haas, 1953 †