Thomelites robustus (FOSSIL) Kennedy, Cobban, Hancock& Hook 1989 †
Tarrantoceras rotatile (FOSSIL) (Adkins 1928 †)
Calycoceras rubeyi (FOSSIL) Cobban, 1988 †
Metasigaloceras rusticum (FOSSIL) (Sowerby, 1817 †) France, Haute-Normandie, Seine-Maritime190 mm
Acompsoceras saithense (FOSSIL) (Gueranger) † UK, Isle of Wight
Kamerunoceras salmuriensis (FOSSIL) (Courtiller, 1867 †) Madagascar73 mm
Acanthoceras sangalense (FOSSIL) Benavides-Caceres, 1956 † Peru, Cajamarca, Celendín
Gentoniceras sarthacense (FOSSIL) (C.É. Bayle, 1878 †) France, Sarthe75 mm
Rhamphidoceras saxatilis (FOSSIL) J. Kennedy & Cobban,1990 † USA, Texas, Hudspeth
Mantelliceras saxbii (FOSSIL) (Sharpe, 1857 †) France, Calais120 mm
Rhamphidoceras saxitalis (FOSSIL) Cobban & Kennedy, 1990 †
Codazziceras scheibei (FOSSIL) (F. Riedel, 1938 †)
Kamerunoceras schindewolfi (FOSSIL) M. Collignon, 1965 †
Sharpeiceras schlueteri (FOSSIL) A. Hyatt, 1903 † USA, Texas, Denton
Nigericeras scotti (FOSSIL) Cobban, 1972 † USA, New Mexico
Acanthoceras seitzi (FOSSIL) F. Riedel, 1932 †
Tarrantoceras sellardsi (FOSSIL) (Adkins, 1928 †) Texas
Euomphaloceras septemseriatum (FOSSIL) (Cragin, 1893 †) Arizona, Coconino County
Thomelites serotinus (FOSSIL) (Wright & Kennedy,1981 †) UK, Devon
Buchiceras slizewiczi (FOSSIL) Fallot 1885 †
Kastanoceras spiniger (FOSSIL) J. Kennedy & Cobban,1990 † USA, Montana, Carter
Tarrantoceras stantoni (FOSSIL) (Adkins 1928 †)
Paramammites subconciliatus (FOSSIL) (Choffat, 1898 †) Nigeria, Gombe, Funakaye83 mm
Morrowites subdepressus (FOSSIL) Cobban & Hook, 1983 † United States, New Mexico, Cibola
Gentoniceras subgentoni (FOSSIL) (Spath, 1926 †) France, Sarthe111 mm
Metoicoceras swallovi (FOSSIL) (Shumard, 1859 †) USA, Minnesota, Itasca
Conlinoceras tarrantense (FOSSIL) (Adkins, 1928 †) USA, Texas, Dallas85 mm
Pseudaspidoceras tassaraensis (FOSSIL) Meister & al., 1992 † Niger, Tahoua, Tchin-Tabarade
Jeanrogericeras tavense (FOSSIL) (Faraud, 1940 †) Morocco117 mm
Protacanthoceras tegulicium (FOSSIL) Wright & Kennedy, 1980 † UK, Dorset
Eucalycoceras templetonense (FOSSIL) Cobban, 1988 †
Thomelites tenereensis (FOSSIL) Meister & al., 1994 † Niger, Tahoua, Tchin-Tabarade
Acompsoceras tenue (FOSSIL) M. Collignon, 1964 † Madagascar
Microsulcatoceras texanum (FOSSIL) J. Kennedy & Cobban,1990 † USA, Texas, Johnson
Watinoceras thompsonense (FOSSIL) Cobban, 1988 †