Graptolite from the Waldron Shale
Dictyonema retiformi Branching graptolite Middle Silurian Rochester Shale Burleigh Member Upper Clinton Group Erie Canal Greece, N.Y.
Photo Information
- Taken with Apple iPad mini
- Focal Length 3 mm
- Exposure Time 1/586
- f Aperture f/1.8
- ISO Speed 25
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