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Tetradium

Ctenodonta hamburgensis Decorah Formation. Rare. This one is unusual in most of shell is perserved, only a chuck missed from right side.

From the album:

Bivalves of Platteville/Decorah Formation Minnesota

· 13 images
  • 13 images

Photo Information

  • Taken with EASTMAN KODAK COMPANY KODAK DX7590 ZOOM DIGITAL CAMERA
  • Focal Length 8.5 mm
  • Exposure Time 1/25
  • f Aperture f/3.0
  • ISO Speed 140
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