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Ptychoparia calcifera (Walcott, 1879)

Taxon Name: Ptychopariidae Ptychoparia calcifera (Walcott, 1879)
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Trilobitomorpha
Class: Trilobita
Order: Ptychopariida
Family: Ptychopariidae
Genus: Ptychoparia
Species: calcifera