5.5″ Polished Fossil Stromatolite (Columnacollenia) Slab – Crimea

5.5″ Polished Fossil Stromatolite (Columnacollenia) Slab – Crimea (Item #363008), Stromatolite Fossils for sale. FossilEra your source to quality fossil specimens.
Species: Columnacollenia sp. (Korolyuk, 1960)
Age: Mississippian Period – Serpukhovian Stage (325 MYA)
Location: Zaborye (Zaborie) Quarry, Serpukhov District, Moscow Region, Russia
Formation: Steshev Horizon
Size: 5.5 x 5.2″, .35″ thick