Sphenodus longidens (Agassiz, 1843) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Chordata class Elasmobranchii order Hexanchiformes family Orthacodontidae genus Sphenodus species Sphenodus longidens Name Synonyms Orthybodus longidens Agassiz, 1843 Oxyrhina longidens (Agassiz, 1843) Oxyrhina ornati Quenstedt, 1851 Sphenodus ornati (Quenstedt, 1851) Homonyms Sphenodus longidens (Agassiz, 1843)