Amplexiphyllum hamiltoniae (Hall 1877)
There are 17 samples up to 3cm. long on this block. From Penn Dixie, Hamburg, NY. Smoke Creek Trilobite Bed, Windom Shale Member, Moscow Formation, Givet, Middle Devon.
Photo Information
- Taken with Canon Canon PowerShot SX230 HS
- Focal Length 5 mm
- Exposure Time 1/13
- f Aperture f/3.1
- ISO Speed 1600
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