Another Rafinesquina from Pennsylvania
Rafinesquina sp. (brachiopod)
Middle Ordovician
Coburn Formation
Trenton Group
Antes Fort, PA.
Photo Information
- Taken with Canon Canon PowerShot A470
- Focal Length 6.3 mm
- Exposure Time 4/10
- f Aperture f/3.0
- ISO Speed 200
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