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Turritella subannulata

Geological Range

Late Pliocene to Late Pleistocene; Extinct

Paleogeographic Distribution

Southern Florida to North Carolina.


Original Description (from Heilprin, 1886, p. 89):

"Shell turreted, acuminate; whorls angular, marked by a broad basal impressed band or channel, which is ornamented with numerous delicate revolving lines; surface of the whorls above the channel longitudinally plicated, with two well-defined submedial lines, and numerous finer lines, as in the channel; aperture rounded; base convex.

Length, 1.2 inches; width of base, .25 inch.

Abundant in the banks below Fort Thompson."

Stratigraphic Occurrences

Late Pleistocene
Coffee Mill Hammock Formation (S. FL)
Fort Thompson Formation (S. FL)
Middle Pleistocene
Bermont Formation (S. FL)
Bermont Formation? (S. FL)
Early Pleistocene
Caloosahatchee Formation (S. FL)
Nashua Formation (N. FL)
Waccamaw Formation (SC, NC)
Late Pliocene
Duplin Formation (NC)
Jackson Bluff Formation (N. FL)
Tamiami Formation (S. FL)
Tamiami Formation (Ochopee Limestone) (S. FL)
Tamiami Formation (Pinecrest Beds) (S. FL)
<i>Turritella subannulata</i> (UF 181437).
Turritella subannulata (UF 181437).
Specimen of <i>Turritella subannulata</i> figured by Heilprin (1886, pl. 8, fig. 17); 1.2 in. in length.
Specimen of Turritella subannulata figured by Heilprin (1886, pl. 8, fig. 17); 1.2 in. in length.
Late Pleistocene Map
Late Pleistocene Map
Middle Pleistocene Map
Middle Pleistocene Map
Early Pleistocene Map
Early Pleistocene Map
Late Pliocene Map
Late Pliocene Map