Paleocene Cretalamna shark tooth from the Potomac River, Maryland
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By Jeffrey P
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Cretalamna appendiculata (mackerel shark tooth)
Paleocene
Aquia Formation
Purse State Park
Potomac River
Charles Co., Maryland
Collected and lent to this author by his friend V.C.
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1
Photo Information
- Taken with Canon Canon PowerShot A470
- Focal Length 6.3 mm
- Exposure Time 1/10
- f Aperture f/3.0
- ISO Speed 200
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