Mastigohamites adpressus (FOSSIL) (J. de C. Sowerby,1814 †)
Tricoloceras closteroides (FOSSIL) (Etheridge, 1904 †)
Ptychoceras dittleri (FOSSIL) Vasicek, 1972 †
Ptychoceras emericanum (FOSSIL) d'Orbigny, 1842 †
Ptychoceras emericianum (FOSSIL) (A.V.M.D. D'Orbigny,1842 †)
Ptychoceras forbesianum (FOSSIL) F. Stoliczka, 1866 †
Pseudoptychoceras gilberti (FOSSIL) Etayo-Serna, 1979 †
Diptychoceras glaber (FOSSIL) J.J.F. Whiteaves, 1884 † Canada, British Columbia, Skeena-Queen Charlotte
Ptychoceras humboldtianum (FOSSIL) D.L.G. Karsten, 1858 †
Ptychoceras laeve (FOSSIL) Matheron, 1842 †
Diptychoceras laeve (FOSSIL) W.M. Gabb, 1869 † France, Rhône-Alpes, Haute-Savoie
Ptychoceras lashense (FOSSIL) Sharikadze, 1975 †
Ptychoceras levigatum (FOSSIL) Egoian, 1969 †
Diptychoceras mazapilense (FOSSIL) Bose, 1923 †
Ptychoceras minimum (FOSSIL) Rouchadze, 1933 †
Diptychoceras nikchitchi (FOSSIL) Rouchadze, 1938 †
Ptychoceras obliquesulcatum (FOSSIL) Avram, 1976 †
Ptychoceras orbignyi (FOSSIL) Reynes, 1876 †
Ptychoceras parvum (FOSSIL) Egoian, 1968 †
Ptychoceras poni (FOSSIL) Simionescu, 1898 † Italy, Lombardia, Lecco
Ptychoceras puzosianum (FOSSIL) A.V.M.D. D'Orbigny,1842 † Hungary, Gerecse Mountains
Ptychoceras renngarteni (FOSSIL) Egoian, 1968 †
Ptychoceras smithi (FOSSIL) Woods 1896 †