Trilobita
Subspecies

Parabolina (Neoparabolina) frequens Barrande, 1868

Classification
Organism groupBiota
KingdomAnimalia
PhylumArthropoda
SubphylumTrilobita
OrderPtychopariida
SuborderOlenina
FamilyOlenidae
GenusParabolina
Subgenus(Neoparabolina)
Speciesdawsoni
jemtlandica
lobata
Subspeciesfrequens