Family: Megistaspidae BALASHOVA 1976
Genus: Genus Megistaspis JAANUSSON 1956
Megistaspis polyphemus (BROEGGER 1882)
Age: Lower Ordovician
Locality: Putilovo quarry, St.Petersburg region, Russia
Family: Megistaspidae BALASHOVA 1976
Genus: Genus Megistaspis JAANUSSON 1956
Megistaspis polyphemus (BROEGGER 1882)
Age: Lower Ordovician
Locality: Putilovo quarry, St.Petersburg region, Russia
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