Lissarca rubrofusca (E.A. Smith, 1879)
Cosa sagana T. Iredale, 1931
Cosa scabra (C. Hedley, 1906)
Philobrya sculpturalis (R.K. Dell, 1956)
Cosa separabilis (FOSSIL) C.R. Laws, 1940 †
Cosa serratocostata A.W.B. Powell, 1933
Philobrya setosa (P.P. Carpenter, 1864)
Eophilobryoidella sinoanisica (FOSSIL) Stiller & C. Chen, 2004 †
Philobrya sivertseni T. Soot-Ryen, 1960
Adacnarca squamea C. Hedley, 1905
Lissarca stationis Fleming, 1948
Cosa stephensensis C.F. Laseron, 1953
Lissarca stewartiana Powell, 1935
Verticipronus stirps C.R. Laws, 1936
Verticipronus strips (FOSSIL) C.R. Laws, 1936 †
Philobrya sublaevis J.P.L. Pelseneer, 1903
Cosa tardiradiata (B.C. Cotton, 1931)
Cosa tatei (C. Hedley, 1901)
Philobrya tela (FOSSIL) (C.R. Laws, 1936 †)
Cosa tholiata P.G. Oliver & A.M. Holmes,2004
Cratis thylicus P.G. Oliver & A.M. Holmes,2004
Adacnarca trapezina (F. Bernard, 1897)
Cosa trigonopsis (FOSSIL) (F.W. Hutton, 1885 †)
Verticipronus tristanensis T. Soot-Ryen, 1952
Philobrya tumida K.H.J. Thiele, 1912
Cosa uchimae I. Hayami & T. Kase, 1993
Philobrya ungulata (G.J. Pfeffer, 1886)
Adacnarca velaini (E.A. Smith, 1904)
Cosa waikikia (W.H. Dall, P. Bartsch& H.A. Rehder, 1938)
Philobrya waitotara (FOSSIL) (C.R. Laws, 1940 †)
Philobrya wandelensis É. Lamy, 1906
Cosa wanganuica (FOSSIL) Finlay, 1930 †
Philobrya zearanea (FOSSIL) (C.R. Laws, 1941 †)