Spectacular piece of ± 12,7 x 10,7 cm, with a trilobite of ± 7,4cm. Perfect trilobite, sandblasted. Among the asaphids of this region this is the rarest.
Beside it has an excellent complete cystoid calyx: Echinosphaerites sp.
Lower Ordovician, Kunda Horizon
Volkhov River, Saint Petersburg Region, Russia
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