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Showing results for tags 'calcareous algae'.
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Stromatolites are potentially present in every geologic period. Show any if you got 'em. The goal here is to represent every period, and every stage/epoch if possible, including subdivisions/periods of the Precambrian. These can be posted in no particular order. Any and all are welcome to post multiple examples from any period/epoch. I'll start with a specimen from the Pennsylvanian: Sniabar Limestone, Kasimovian/Missourian Stage, Pennsylvanian Kansas City, Missouri, USA The front side has been polished.
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- algae
- calcareous algae
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- algae
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