Species

Polyrhizodus concavus Trautschold, 1874

Classification
Organism groupBiota
KingdomAnimalia
PhylumChordata
SubphylumVertebrata
InfraphylumGnathostomata
ClassChondrichthyes
OrderHolocephali
Petalodontiformes
FamilyPetalodontidae
GenusPolyrhizodus
Speciesconcavus