File:Stromatolites in lacustrine limestone (Green River Formation, Eocene; Utah, USA) (30698554727).jpg

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search

Original file (3,188 × 2,479 pixels, file size: 4.44 MB, MIME type: image/jpeg)

Captions

Captions

Add a one-line explanation of what this file represents

Summary

[edit]
Description

Stromatolites from the Eocene of Utah, USA. (~5.9 centimeters across at its widest along the base)

Stromatolites are layered structures built up by mats of cyanobacteria (= blue-green bacteria, often incorrectly called “blue-green algae”). Stromatolites are fairly common in portions of the shallow-water marine & nonmarine fossil record, but they also occur in a few modern localities (e.g., Shark Bay along coastal Western Australia).

The examples shown here grew during the Eocene in an ancient lake in Utah.

Stratigraphy: Green River Formation, Eocene

Locality: unrecorded site (likely a roadcut) in Utah, USA

See info. at:

<a href="https://en.wikipedia.org/wiki/Stromatolite" rel="nofollow">en.wikipedia.org/wiki/Stromatolite</a>
Date
Source Stromatolites in lacustrine limestone (Green River Formation, Eocene; Utah, USA)
Author James St. John

Licensing

[edit]
w:en:Creative Commons
attribution
This file is licensed under the Creative Commons Attribution 2.0 Generic license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/30698554727 (archive). It was reviewed on 6 November 2018 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

6 November 2018

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current04:41, 6 November 2018Thumbnail for version as of 04:41, 6 November 20183,188 × 2,479 (4.44 MB)Lu Brito (talk | contribs)Transferred from Flickr via #flickr2commons

You cannot overwrite this file.

There are no pages that use this file.

Metadata

This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.

Retrieved from "https://commons.wikimedia.org/w/index.php?title=File:Stromatolites_in_lacustrine_limestone_(Green_River_Formation,_Eocene;_Utah,_USA)_(30698554727).jpg&oldid=885633377"