This fossil gastropod specimen is a Sinistrofulgur sp. (related to the modern left-handed, Lightning Whelk). It has had a very light cleaning with a soft brush. It was were recovered from a Miocene-Pliocene deposit in the Bone Valley formation of south central Florida. It is approx. 2,000,000 to 23,000,000 years old. There is still a small amount of matrix material inside this specimen, which may contain additional small fossils if carefully removed.
Refer to the photos. The black centimeter cube is shown for scale and is not included. You are purchasing the specimen shown. Your purchase will include an ID label.