• Catula S.A. Maccracken, I.M. Miller, K.R. Johnson, J.M. Sertich & C.C. Labandeira, 2022 †
• Sabula Hall, 1867 accepted as Subula Schumacher, 1817 accepted as Terebra Bruguière, 1789
• Satula Olive, 1963 (uncertain)
• Scambula Conrad, 1869 †
• Scaphula Benson, 1834 [Family: Arcidae]
• Scaphula Fairmaire, 1846 (uncertain) [Family: Hemiptera (awaiting allocation)]
• Scaphula Parker, 1932 (uncertain) [Family: Dipterocarpaceae]
• Scaphula Scudder, 1882 (unaccepted > nomen nudum) [Family: Gastropoda (awaiting allocation)]
• Scaphula Swainson, 1840 accepted as Olivancillaria d'Orbigny, 1841 [Family: Olividae]
• Scatella Robineau-Desvoidy, 1830
• Scatina Robineau-Desvoidy, 1830 accepted as Scathophaga Meigen, 1803
• Scaura Schwarz, 1938 (uncertain)
• Scirula Berlese, 1887
• Scopula Arnaud, 1952 accepted as Gloiosphaera F. von Höhnel, 1902 [Family: Ascomycota incertae sedis]
• Scopula Schrank, 1802 [Family: Geometridae]
• Scottula G.O. Sars, 1902 accepted as Metacalanus Cleve, 1901
• Scutula Loureiro, 1790 accepted as Memecylon Linnaeus, 1753 [Order: Myrtales]
• Scutula Sannemann, 1955 † (uncertain) [Order: Conodonta (awaiting allocation)]
• Scutula Tulasne, 1852 [Order: Lecanorales]
• Sertula O. Kuntze, 1891 (uncertain)
• Sintula Simon, 1884
• Situla Vinogradova, 1969
• Spathula (Tausch) Fourreau, 1869 (uncertain) [Family: Iridaceae]
• Spathula Nurse, 1950 [Family: Dugesiidae]
• Spatula Boie, 1822 accepted as Anas Linnaeus, 1758
• Sulcatula Leroy, 1940 † (uncertain)
• Svabula Vršanský, 2005 †