Turbinelloidea is a superfamily of sea snails in the order Neogastropoda. It comprises the following families: * Columbariidae Tomlin, 1928 * Costellariidae MacDonald, 1860 * Ptychatractidae Stimpson, 1865 * Turbinellidae Swainson, 1835 * Volutomitridae Gray, 1854Families brought into synonymy * Cynodontidae MacDonald, 1860: synonym of Vasinae H. Adams & A. Adams, 1853 (1840) * Vasidae H. Adams & A. Adams, 1853: synonym of Turbinellidae Swainson, 1835 * Vexillidae Thiele, 1929: synonym of Costellariidae MacDonald, 1860 * Xancidae Pilsbry, 1922: synonym of Turbinellidae Swainson, 1835