Superregnum: Eukaryota
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Cladus: Craniata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Classis: Chondrichthyes
Subclassis: Elasmobranchii
Superordo: Selachimorpha
Familia: †Ptychodontidae
Genus: †Ptychodus
Species: †Ptychodus rhombodus
Name
References
- Underwood, C.J. & Cumbaa, S.L. 2010. Chondrichthyans from a Cenomanian (Late Cretaceous) bonebed, Saskatchewan, Canada. Palaeontology 53(4): 904–944. DOI: 10.1111/j.1475-4983.2010.00969.x Reference page.
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