Genus

Porterfieldia Cooper, 1953

List of species
Luokittelu
Organism groupBiota
KingdomAnimalia
PhylumArthropoda
SubphylumTrilobita
OrderPtychopariida
SuborderOlenina
FamilyOlenidae
SuperfamilyTriarthrinae
GenusPorterfieldia
Specieshumilis
GenusTriarthrus