Russian trilobites
Pseudoasaphus praecurrens Schmidt 1904 Age: Middle Ordovician Locality: Wolhov river, St.Petersburg region, Russia Size: 7.5 cm
Pseudoasaphus praecurrens Schmidt 1904
Age: Middle Ordovician
Locality: Wolhov river, St.Petersburg region, Russia
Size: 7.5 cm
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