Family: Ptychopygidae BALASHOVA 1976
Genus: Genus Ptychopyge ANGELIN 1854
Ptychopyge gladifera SCHMIDT 1904
Age: Lower Ordovician
Locality: Lava river, St.Petersburg region, Russia
Family: Ptychopygidae BALASHOVA 1976
Genus: Genus Ptychopyge ANGELIN 1854
Ptychopyge gladifera SCHMIDT 1904
Age: Lower Ordovician
Locality: Lava river, St.Petersburg region, Russia
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