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File:Stromatolites.jpg

Stromatolites.jpg (550 × 371 pixels, file size: 103 KB, MIME type: image/jpeg)

Description
English: Stromatolites, that is pre-cambrian petrified biofilm about one billion years old in the Siyeh rock formation of Glacier National Park, Montana, USA.
Original caption: Close-up of PreCambrian stromatolites in Siyeh Formation, Going to the Sun Highway. Glacier National Park
Français : Les stromatolites sont des accumulations fossiles de biofilms algo-bactériens datant de l'époque pré-cambrienne, ici pétrifiés sur un milliard d'années dans la formation rocheuse Siyeh de Glacier National Park, Montana, USA.
Español: Los estromatolitos son acumulaciones fósiles algo-bacterianas de la época precámbrica, petrificadas y con una antigüedad de más de mil millones de años, que se sitúan en la formación rocosa Mount Siyeh del Parque nacional de los Glaciares, en Montana, USA.
Date
Source National Park Service - http://www.nature.nps.gov/geology/cfprojects/photodb/Photo_Detail.cfm?PhotoID=204
Author P. Carrara, NPS
Permission
(Reusing this file)
Public domain This image or media file contains material based on a work of a National Park Service employee, created as part of that person's official duties. As a work of the U.S. federal government, such work is in the public domain in the United States. See the NPS website and NPS copyright policy for more information.

Captions

Stromatolites left behind by cyanobacteria, also called blue-green algae. They are the oldest known fossils of life on Earth. This one-billion-year-old fossil is from Glacier National Park, Montana, United States.

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image/jpeg

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Date/TimeThumbnailDimensionsUserComment
current06:08, 28 January 2005Thumbnail for version as of 06:08, 28 January 2005550 × 371 (103 KB)Raul654

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