Lioceratoides serotinum (FOSSIL) (E. Bettoni, 1900 †)
Protogrammoceras serotinum (FOSSIL) (E. Bettoni, 1900 †)
Hildaites serpentiniformis (FOSSIL) Buckman, 1921 †
Harpoceras serpentinum (FOSSIL) (von Schlotheim, 1813 †)
Hudlestonia serrodens (FOSSIL) (F.A. von Quenstedt,1846 †)
Dumortieria signata (FOSSIL) Buckman †
Protogrammoceras skidegatense (FOSSIL) Smith & Tipper, 1996 †
Harpoceras soloniacense (FOSSIL) Lissajous, 1906 †
Vacekia sourensis (FOSSIL) (Perrot, 1957 †)
Dumortieria sparsicosta (FOSSIL) (Haug, 1887 †)
Tugurites species (FOSSIL) †
Hildaites spiralis (FOSSIL) Sassaroli & Venturi,2010 †
Hildaites stefaninii (FOSSIL) Merla 1933 †
Vacekia stephensi (FOSSIL) (Buckman, 1899 †)
Paroniceras sternale (FOSSIL) (A.V.M.D. D'Orbigny,1845 †)
Harpoceras strangewaysi (FOSSIL) J. de C. Sowerby, 1820 †
Vacekia striata (FOSSIL) Henriques, 2012 †
Dumortieria striatulocostata (FOSSIL) (F.A. von Quenstedt,1885 †)
Grammoceras striatulum (FOSSIL) (Sowerby, 1825 †)
Hildaites striatus (FOSSIL) Guex, 1973 †
Pseudogrammoceras struckmanni (FOSSIL) (Denckmann, 1887 †)
Osperleioceras subbeticum (FOSSIL) Rivas †
Pleydellia subcandida (FOSSIL) Buckman †
Frechiella subcarinata (FOSSIL) (A.T. Young & Bird,1822 †)
Pleydellia subcompta (FOSSIL) Branco, 1879 †
Osperleioceras subcostulatum (FOSSIL) (Monestier, 1921 †)
Harpoceras subexaratum (FOSSIL) Bonarelli, 1899 †
Dumortieria subexcentrica (FOSSIL) Buckman †
Dumortieria subfasciata (FOSSIL) Buckman †
Protogrammoceras sublaeve (FOSSIL) (Monestier, 1934 †)
Hildoceras sublevisoni (FOSSIL) Fucini, 1919 †
Harpoceras subplanatum (FOSSIL) Oppel, 1856 †
Pseudogrammoceras subquadratum (FOSSIL) Buckman, 1890 †
Pseudogrammoceras subregale (FOSSIL) Pinna, 1968 †
Hildaites subserpentinus (FOSSIL) Buckman, 1921 †