Superregnum: Eukaryota
Supergroup: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Echinodermata
Subphylum: Eleutherozoa
Superclassis: Cryptosyringida
Classis: Echinoidea
Subclassis: Euechinoidea
Superordo: Atelostomata
Ordo: Cassiduloida
Familia: Apatopygidae
Genus: Porterpygus
Species (2): P. kieri – †P. devlinensis
Name
Porterpygus Baker, 1983
Original status: Valid genus
Type species: Porterpygus kieri Baker, 1983
Fixation: Original designation (p. 164) [and monotypy]
References
Baker, A.N. 1983: A new apatopygid echinoid genus from New Zealand (Echinodermata: Cassiduloida). National Museum of New Zealand records 2(15): 163–173. Reference page.
Holmes, F.C. 1999: Australian Tertiary Apatopygidae (Echinoidea). Proceedings of the Royal Society of Victoria 111(1): 51–70. Full issue (PDF) Reference page.
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