Ammonites (IMAGE)

American Museum of Natural History

Ammonites

Caption

This is a fossiliferous concretion containing a large macroconch of Hoploscaphites brevis, Inoceramus nebrascensis and Baculites cuneatus . This fossil, collected as AMNH 63467, was found in the Baculites cuneatus Zone, Pierre Shale, Meade County, South Dakota.

Credit

S. Thurston/AMNH

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