Devonian Crinoid Anchor Holdfasts from Turbotsville, PA.
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By Jeffrey P
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Ancyrocrinus sp. (anchor-shaped crinoid holdfasts)
Middle Devonian
Mahantango Formation
Swopes farm
Turbotsville, PA.
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1
Photo Information
- Taken with Canon Canon PowerShot A470
- Focal Length 6.3 mm
- Exposure Time 1/13
- f Aperture f/3.0
- ISO Speed 200
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