United States Ammonites

Last Modified 08/27/2008

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(Click Photo to Enlarge)

Name:     Sphenodiscus sp.
Geologic Age:     Cretaceous
Stratigraphic detail:     Pierre Shale Formation
Location:     Meade County, South Dakota
Comments:      Very nice specimen that has been polished.  There are some nice sutures present, as well as some beautiful red and orange iridescent colors when rotated and viewed.  This specimen measures approx.  8" wide. 

Sphenodiscus Ammonite 1 $425.00  SUMMER SALE PRICE $300.00