Description: Fossil "true whelk" from 18MYA Chipola Formation deposits. Found in gray clay/sand banks of Tenmile Creek. Genus Hesperisternia was formerly know as Cantharus, Latin for "cup".
Age: Miocene Epoch
Location Found: United States, Florida, Tenmile Creek near Clarksville, FL
Found by: Kathy Patterson
Custodian: fossilweb
Identified by: Ed DeRouin
References: The Molluscan Fauna of the Alum Bluff Group of Florida, Part VII, pp. 445-446 and Plate XLIX.