Spinatrypa spinosa (Hall 1843)
By Ludwigia
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3cm. Windom Shale, Moscow Formation, Givet, Devon. Erie County, NY.
Photo Information
- Taken with Canon Canon PowerShot SX230 HS
- Focal Length 5 mm
- Exposure Time 1/6
- f Aperture f/8.0
- ISO Speed 100
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