Family: Ptychopygidae BALASHOVA 1976
Genus: Genus Ptychopyge ANGELIN 1854
Ptychopyge angustifrons (Dalman 1827)
Age: Lower Ordovician
Locality: Putilovo quarry, St. Petersburg region, Russia
Size: 4 cm
Family: Ptychopygidae BALASHOVA 1976
Genus: Genus Ptychopyge ANGELIN 1854
Ptychopyge angustifrons (Dalman 1827)
Age: Lower Ordovician
Locality: Putilovo quarry, St. Petersburg region, Russia
Size: 4 cm
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