Stereolasma rectum (Hall 1876)
By Ludwigia
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4cm. long. 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 1/8
- f Aperture f/3.1
- ISO Speed 1600
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