A Cast of a Bivalve Shell from the Merchantville Formation, N.J.
Granocardium sp. (cast of Bivalve shell- both valves)
Upper Cretaceous
Merchantville Formation
Mattawan Group
Mattawan, New Jersey
A gift from Ralph Johnson
- 1
Photo Information
- Taken with Apple iPad mini 2
- Focal Length 3.3 mm
- Exposure Time 1/20
- f Aperture f/2.4
- ISO Speed 250
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