Hypophylloceras tanit (FOSSIL) (Pervinquiére, 1907 †)
Ptychophylloceras tatricum (FOSSIL) (G.G. Pusch, 1837 †)
Partschiceras tenuistriatum (FOSSIL) (Meneghini, 1868 †)
Hypophylloceras thetys (FOSSIL) (A.V.M.D. D'Orbigny,1841 †)
Sowerbyceras tietzei (FOSSIL) Till, 1910 †
Sowerbyceras tortisulcatus (FOSSIL) (A.V.M.D. D'Orbigny,1841 †)
Phylloceras trifoliatum (FOSSIL) M. von Neumayr, 1871 †
Phyllopachyceras trinitense (FOSSIL) Anderson, 1938 †
Holcophylloceras ultramontanum (FOSSIL) (C.A. von Zittel, 1869 †)
Phyllopachyceras umpuanum (FOSSIL) Anderson, 1938 †
Partschiceras umzambiense (FOSSIL) van Hoepen, 1920 †
Phylloceras velledae (FOSSIL) (J.L.H. Michelin, 1834 †)
Hypophylloceras woodsi (FOSSIL) (van E.C.N. van Hoepen& E.C.N. van Hoepen, 1921 †)
Phylloceras xeinus (FOSSIL) (Buckman, 1921 †)
Zetoceras zetes (FOSSIL) (A.V.M.D. D'Orbigny,1850 †)
Holcophylloceras zignodianum (FOSSIL) (A.V.M.D. D'Orbigny,1848 †)