Waldron Shale crinoid
Plate from the Waldron Shale containing a crinoid calyx, rhynchonellid brachiopods and a gastropod possibly Strophostylus sp.?
Middle Silurian
Waldron Shale
Waldron, Indiana
- 3
Photo Information
- Taken with Google Pixel 6
- Focal Length 6.8 mm
- Exposure Time 1864/1000000
- f Aperture f/1.9
- ISO Speed 64
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