Paleocene Cretalamna shark tooth from the Potomac River, Maryland
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.
- 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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