File:Stromatolites W of Saratoga Springs, New York.jpg

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Stromatolitic limestone - glacially planed-off outcrop of Hoyt Limestone in the Cambrian of New York State, USA.

Stratigraphy: Hoyt Limestone, Upper Cambrian

Locality: low outcrop on eastern side of Lester Park Road (Petrified Sea Gardens Road), north of Rt. 29, west of the town of Saratoga Springs, western Saratoga County, eastern New York State, USA.

Stromatolites are large, layered structures built up by mats of cyanobacteria. Stromatolites vary in appearance, ranging from slightly wrinkled horizontal laminations in sedimentary rocks to low mounds to prominent mounds to columnar structures and other forms.

Stromatolites are most common in the Proterozoic fossil record. They are scarce today, but famous modern examples occur at Shark Bay, Western Australia.
Date
Source Stromatolites (Hoyt Limestone, Upper Cambrian; Lester Park Road outcrop, W of Saratoga Springs, New York State, USA) 07
Author James St. John

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This image was originally posted to Flickr by jsj1771 at https://www.flickr.com/photos/47445767@N05/15201463775. It was reviewed on 11 September 2014 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0.

11 September 2014

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current03:09, 11 September 2014Thumbnail for version as of 03:09, 11 September 20144,000 × 3,000 (6.74 MB)Tillman (talk | contribs)Transferred from Flickr via Flickr2commons

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