File:1,800,000,000 Years Old Stromatolite (3109141131).jpg

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Example of Proterozoic algal matting. Layers, beds and reefs made of sun-loving slime lived for billions of years in shallow waters. When macro lifeforms evolved 600 million (or so) years ago, stromatolites became snail food. Today, stromatolites survive in hypersaline water such as the Hamelin Pool in Shark Bay, Australia.

Fist-sized sample collected from the Pethei Formation, Blanchet Island, East Arm, Great Slave Lake, Northwest Territories, Canada.
Date
Source 1,800,000,000 Years Old Stromatolite
Author Mike Beauregard from Canada
Camera location62° 04′ 10.73″ N, 112° 14′ 13.25″ W Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo

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This file is licensed under the Creative Commons Attribution 2.0 Generic license.
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This image was originally posted to Flickr by subarcticmike at https://flickr.com/photos/31856336@N03/3109141131 (archive). It was reviewed on 4 December 2018 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

4 December 2018

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current13:33, 4 December 2018Thumbnail for version as of 13:33, 4 December 20181,301 × 1,389 (274 KB)Luisbrudna (talk | contribs)Transferred from Flickr via #flickr2commons

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