fossill |
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| navigate by keyword : ancient animal archean archeology australia background beach billion black block cephalopod chamber chert closeup creature design environment evolution extinct fossil fossill fossils gemstone geological geology isolated macro marine mineral mollusc nature nautilus nobody old oldest paleontology pattern petrified pilbara polished pool prehistory rock sea skeleton stone strelly stromatolite stromatolites swirl texture western world |
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| Stromatolites are a major constituent of the fossil record of the first forms of life on earth. They peaked about 1.25 billion years ago and subsequently declined in abundance and diversity. Now only found in a few places on earth. This fossil is from Pilbara Block Western Australia. Dated at 3.7 billion years old |
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