1.7" Hoploscaphites Nodosus Ammonite - South Dakota

This is a 1.7" wide Hoploscaphities nodosus, from the Pierre Shale of South Dakoka. This uncommon ammonite species is distinctive nodes or bumps on the shell which would have helped to add strength to it.

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.

#{ammonite}
DETAILS
SPECIES
Hoploscaphities nodosus
LOCATION
Meade County, South Dakota
FORMATION
Pierre Shale
SIZE
1.7" Wide
ITEM
#62597
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