stromatolite rock at Snowy Range in Wyoming

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Stromatolites are a laminated, usually mounded, sedimentary fossil formed from layers of cyjanobacteria, calcium carbonate, and trapped sediment.





stromatolite rock at Snowy Range in Wyoming
.
Stromatolites are a laminated, usually mounded, sedimentary fossil formed from layers of cyjanobacteria, calcium carbonate, and trapped sediment.