1.6" Hoploscaphites Ammonite & Clam Cluster- South Dakota

This is a cluster of small Hoploscaphities nicolletii ammonites collected from the Fox Hills Formation of South Dakota. It's been wonderfully prepared in the hard concretion it was found in.

These 70 million year old ammonites lived when South Dakota was a shallow inland sea. It was found preserved in a concretion that was split open. It then had to be hand prepared to remove the hard rock surrounding it from the shell, a very time consuming task.
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DETAILS
SPECIES
Hoploscaphities nicolletii
LOCATION
Corson County, South Dakota
FORMATION
Fox Hills Formation
SIZE
1.6" Wide, largest ammonite .7"
ITEM
#46882
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