File:Rangia lecontei (fossil bivalve) (Upper Pleistocene lake deposits; Coachella Valley, California, USA).jpg
![File:Rangia lecontei (fossil bivalve) (Upper Pleistocene lake deposits; Coachella Valley, California, USA).jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Rangia_lecontei_%28fossil_bivalve%29_%28Upper_Pleistocene_lake_deposits%3B_Coachella_Valley%2C_California%2C_USA%29.jpg/800px-Rangia_lecontei_%28fossil_bivalve%29_%28Upper_Pleistocene_lake_deposits%3B_Coachella_Valley%2C_California%2C_USA%29.jpg?20210506191859)
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[edit]DescriptionRangia lecontei (fossil bivalve) (Upper Pleistocene lake deposits; Coachella Valley, California, USA).jpg |
English: Rangia lecontei Conrad, 1853 - fossil bivalve from the Pleistocene of California, USA.
Bivalves are bilaterally symmetrical molluscs having two calcareous, asymmetrical shells (valves) - they include the clams, oysters, and scallops. In most bivalves, the two shells are mirror images of each other (the major exception is the oysters). They occur in marine, estuarine, and freshwater environments. Bivalves are also known as pelecypods and lamellibranchiates. Bivalves are sessile, benthic organisms - they occur on or below substrates. Most of them are filter-feeders, using siphons to bring in water, filter the water for tiny particles of food, then expel the used water. The majority of bivalves are infaunal - they burrow into unlithified sediments. In hard substrate environments, some forms make borings, in which the bivalve lives. Some groups are hard substrate encrusters, using a mineral cement to attach to rocks, shells, or wood. The fossil record of bivalves is Cambrian to Recent. They are especially common in the post-Paleozoic fossil record. Classification: Animalia, Mollusca, Bivalvia, Heterodonta, Veneroida, Mactridae Locality: unrecorded/undisclosed locality in Coachella Valley, Salton Basin, far-southern California, USA See info. at: en.wikipedia.org/wiki/Mactridae |
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Source | https://www.flickr.com/photos/47445767@N05/51156947448/ |
Author | James St. John |
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/51156947448. It was reviewed on 6 May 2021 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
6 May 2021
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current | 19:18, 6 May 2021 | ![]() | 1,535 × 1,002 (910 KB) | Ser Amantio di Nicolao (talk | contribs) | Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/51156947448/ with UploadWizard |
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Date and time of data generation | 00:22, 3 May 2021 |
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Horizontal resolution | 180 dpi |
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File change date and time | 00:09, 4 May 2021 |
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Exif version | 2.21 |
Date and time of digitizing | 00:22, 3 May 2021 |
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Date metadata was last modified | 20:09, 3 May 2021 |
Unique ID of original document | 8C76174466999D379A45ED3E7396E374 |