Late Pliocene to Middle Pleistocene; Extinct.
Southern Florida to Northern Florida.
Original Description (from Mansfield, 1939, p. 47):
"Turritella pontoni Mansfield was described from a sand of upper Miocene age at a locality 42 miles west of Miami, Florida. The material consists of rather poorly preserved large specimens. A carina is present on the lower third of each whorl and the whorl is less depressed medially than the specimen referred to T. aff. T. cartagenensis Pilsbry and Brown.
Horizon and occurrence. -- Buckingham limestone; quite common at Buckingham; station 14075, dredged from the Caloosahatchee River, one mile below Olga."
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