Orthacodontidae

Orthacodontidae is an extinct family of sharks. It is disputed as to whether it belongs to the modern shark order Hexanchiformes, or the extinct order Synechodontiformes.  It contains two genera. Some other authors included it in Lamniformes.

Species

 * Occitanodus Guinot, Cappetta & Adnet, 2014
 * Occitanodus sudrei Guinot, Cappetta & Adnet, 2014
 * Sphenodus Agassiz, 1843
 * Sphenodus alpinus Gümbel, 1861
 * Sphenodus longidens Agassiz, 1843
 * Sphenodus lundgreni Davis, 1890
 * Sphenodus macer Quenstedt, 1852
 * Sphenodus nitidus Wagner, 1862
 * Sphenodus planus Agassiz, 1843
 * Sphenodus rectidens Emmons, 1858
 * Sphenodus robustidens Seguenza, 1900
 * Sphenodus tithonius Gemmellaro, 1871
 * Sphenodus virgai Gemmellaro, 1871