Axinopsida orbiculata (G.O. Sars, 1878)
Genaxinus otagoensis (FOSSIL) (H.H. Suter, 1913 †)
Tauraxinus ottnangensis (FOSSIL) (Sacco 1901) †
Mendicula ovata (A.E. Verrill & K.J. Bush,1898)
Ascetoaxinus ovoideus (W.H. Dall, 1890)
Thyasira oyamai T. Habe, 1962
Thyasira ozawai M. Yokoyama, 1926
Thyasira patagonica D.G. Zelaya, 2010
Axinopsida pegodonta (FOSSIL) J.D. Stilwell& Zinsmeister, 1992 †
Thyasira peregrina T. Iredale, 1930
Prothyasira peroniana T. Iredale, 1930
Channelaxinus perplicatus (C. Salas, 1996)
Thyasira peruviana (FOSSIL) A.A. Olsson, 1931 †
Thyasira pervulgata (FOSSIL) L. Krishtofovich, 1936 †
Axinulus philippinensis Allen, 2015
Spinaxinus phrixicus P.G. Oliver, 2013
Thyasira phrygiana Miloslavskaya, 1977
Adontorhina pisum (W.H. Dall, 1908)
Thyasira planata (J.G. Jeffreys, 1882)
Thyasira polygona (J.G. Jeffreys, 1864)
Mendicula pygmaea (A.E. Verrill & K.J. Bush,1898)
Conchocele quadrata (FOSSIL) Yabe & S. Nomura, 1925 †
Ascetoaxinus quatsinoensis P.G. Oliver & M.A. Frey,2014
Thyasira rashidi (FOSSIL) Abbass, 1972 †
Tomburchus redondoensis (T.A. Burch, 1941)
Parathyasira resupina T. Iredale, 1930
Thyasira rotunda J.G. Jeffreys, 1881
Wallerconcha sarae (FOSSIL) P.H. Valentich-Scott& C.L. Powell, 2014 †
Thyasira sarsii (R.A. Philippi, 1845)
Thyasira scotiae P.G. Oliver & J. Drewery,2014
Thyasira scotiana D.G. Zelaya, 2009
Axinus sculpta (FOSSIL) (Phillips 1829) †
Spinaxinus sentosus P.G. Oliver & A.M. Holmes,2006
Axinopsida serricata (P.P. Carpenter, 1864)
Adontorhina similis P.J. Barry & J.B. McCormack,2007