Alternative combination: Belonorhynchus brevirostris
Full reference: A. S. Woodward. 1895. Catalogue of the Fossil Fishes in the British Museum (Natural History), Part III 1-544
Sister taxon: Acidorhynchus acutus
Type specimen: BMNH 40726, a skull. Its type locality is Lyme Regis unspecified (BMNH), which is in a Hettangian/Sinemurian marine horizon in the United Kingdom.