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English: Sponge borings (Entobia made by the genus Cliona) and encrusters on a shell of the modern hard clam, Mercenaria mercenaria, from North Carolina. This encrustation and boring happened after the death of the clam when the shell was empty.
Français : Traces fossile récente (dite Entobia) faite par une éponge foreuse du genre Cliona'') et traces d'organismes encroutant sur une coquille de l'espèce Mercenaria mercenaria, trouvée en Caroline du Nord. L'encroutement et le "forage" de cette coquille datent d'après la mort de l'animal, quand la coquille était vide.
Date 2007-05-13 (original upload date)
Source Photograph taken by Mark A. Wilson (Department of Geology, The College of Wooster). [1]
Author Original uploader was Wilson44691 at en.wikipedia
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Released into the public domain (by the author).


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  • 2007-05-13 00:45 Wilson44691 700×525×8 (120166 bytes) I took this photograph.

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EXIF data:
File name boredencrustedshell.jpg
Size, Mbytes 0.11578515625
Mime type image/jpeg
Camera manufacturer NIKON
Camera model E4500
Orientation of image 1
Image resolution in width direction 72
Image resolution in height direction 72
Unit of X and Y resolution 2
Exposure time 10/1264 sec (0.00791139240506)
F number f / 6.4
Exposure program 2
ISO speed rating 100
Compressed bits per pixel 4
Exif version 0220
Lens focal length 12.9 mm
Date and time original image was generated 2003:07:14 15:06:44
Date and time image was made digital data 2003:07:14 15:06:44
Meaning of each component 
Exposure bias 0
Maximum lens aperture 2.8
Metering mode 5
User comments
Supported Flashpix version 0100
Color space information 1
Exif image width 700
Exif image length 525
InteroperabilityOffset 872
Scene type 
Digital zoom ratio 0
Focal length in 35 mm film 62 mm
Interoperability index R98
Interoperability version 0100
Software used Adobe Photoshop CS Macintosh
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