stromatolite
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stromatolite |
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| navigate by keyword : algae austinii big blue codonophycus domes eon fossil fossilized geology green horn laminated layers limestone mississippian mountains oxygen paleobiology period photosynthesis photosynthetic sediment shallow stromatolite stromatolites tidal waters wyoming |
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| Image shows a fossil stromatolite collected from the Big Horn Mountains of Wyoming. Stromatolites were formed by blue-green algae under shallow, tidal waters where laminated domes formed by grains of sediment being trapped on the algaeââ¬â¢s sticky surface. Stromatolites produced and released oxygen which became an abundant gas in our atmosphere for the first time. . This species (Codonophycus austinii) was found in the Mississippian Period (Madison Limestone) making it about 325-347 million years old. |
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Stockphotos.ro (c) 2024. All stock photos are provided by Dreamstime and are copyrighted by their respective owners. |
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