Full reference: P. G. Egerton. 1868. On the characters of some new fossil fish from the Lias of Lyme Regis. Quarterly Journal of the Geological Society 24:499-505
Sister taxon: Osteorachis granulatum
Type specimen: BMNH P3654, P3655, P3649, P3648a. Its type locality is Lyme Regis, Enniskillen collection, which is in a Hettangian/Sinemurian marine horizon in the United Kingdom.