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Collenia undosa Walcott 1916
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Products description
| Here is a small Stromatolite plate with Collenia undosa from the Precambrian of Minnesota. This is a polished slap with the speices Collenia undosa from the about 2.2 Billion years old Biwabik-Iron-Formation of Minnesota. The Site of the Mary Ellen Mine is a classical Banded Iron Formation. Locality. It is knon and valoured for its nice and colourfully preservation. | |||
Location: | Mary Ellen Mine, Mesabi Range, St. Louis County, Minnesota, USA | ||
| Size : | about 60 x 41 mm | ||
| Age: | Precambrian, Lower Proterozoic, Rhyacian, Biwabik Formation (about 2.2 Ga / 2200 Ma) | ||
Product no.: 10488