File:Nerita versicolor (four-toothed nerite snails) Bahamas.jpg

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Nerita versicolor Gmelin, 1791 - four-toothed nerite snails exposed in a rocky shore intertidal zone.

These nerite snails are on an epikarstified aragonitic limestone surface in the intertidal zone. They are grazing on algal/bacterial films by scraping the rocks with their radulae. The limestone rocks are cross-bedded, aragonitic, calcarenitic eolianites, formed in a terrestrial, near-shore, wind-dominated, sand dune environment.

Stratigraphy: North Point Member, Rice Bay Formation, middle Holocene, ~5300 years old

Classification: Animalia, Mollusca, Gastropoda, Neritidae

Locality: western rocky shoreline of North Point Peninsula, eastern margin of Graham's Harbour, northeastern San Salvador Island, eastern Bahamas
Date
Source Nerita versicolor (four-toothed nerite snails) in a rocky shore intertidal zone (San Salvador Island, Bahamas) 4
Author James St. John

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This image was originally posted to Flickr by jsj1771 at https://www.flickr.com/photos/47445767@N05/16013610451. It was reviewed on 28 December 2014 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0.

28 December 2014

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current02:16, 28 December 2014Thumbnail for version as of 02:16, 28 December 20143,008 × 2,000 (2.1 MB)Tillman (talk | contribs)Transferred from Flickr via Flickr2Commons

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