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Description

Rhaeboceras halli fossil from South Dakota in the United States. The fossil dates to the late Campanian Stage in the Cretaceous Period, around 73 Ma (mega-annum, or million years). This ammonite is a shelled cephalopod related to extant squids.

Some chambers of this ammonite are hollow, allowing the internal structure to be observed. Present on this ammonite is the original nacre (aragonitic mother of pearl).

Comments

Still image shows fossil in an upright position. The 360° View shows fossil on side.

Submitted to CORE Scholar to be digitized by Graduate Student, David Peterman.


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