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Busycon rapum

Geological Range

Late Pliocene to Early Pleistocene; Extinct.

Paleogeographic Distribution

Southern Florida to northern Florida.

Remarks

Original Description (from Heilprin, 1886, p. 71):

"Shell pyruliform, closely inwound, with a short depressed spire; whorls of the spire about five, gently crenated basal y (or above the sutural line); apex papillate.

Body-whorl ventricose, high, convex, sub-angulated above, and to an extent also inferiorly, somewhat nodulose on the rounded shoulders; neither true tubercles nor spines; tendency to nodulation in some cases entirely wanting; aperture of nearly the entire length of the shell, elliptical above, and produced into a long, narrow, straight canal, which is slightly deflected to one side; outer lip strongly lined internally. Columella arcuate, rapidly contracting the aperture at the beginning of the canal; columellar fold not very prominent. The entire surface of the shell covered with closely-placed, moderately elevated, revolving striae, which have a gently sinuous outline, and exhibit a distinct alternation of coarser and finer lines.

Length, 6.5 inches; width, 3.5 inches.

In the banks of the Caloosahatchie, below Fort Thompson."

Stratigraphic Occurrences

Early Pleistocene
Caloosahatchee Formation (S. FL)
Caloosahatchee Formation (Bee Branch Member) (S. FL)
Nashua Formation (N. FL)
Late Pliocene
Jackson Bluff Formation (N. FL)
Tamiami Formation (Pinecrest Beds) (S. FL)
<i>Busycon rapum</i> from the Early Pleistocene Caloosahatchee Fm. of Hendry County, Florida (UF 15749).
Busycon rapum from the Early Pleistocene Caloosahatchee Fm. of Hendry County, Florida (UF 15749).
Specimen of <i>Busycon rapum</i> figured by Heilprin (1886, pl. 2, fig. 4); 6.5 in. in length.
Specimen of Busycon rapum figured by Heilprin (1886, pl. 2, fig. 4); 6.5 in. in length.
Early Pleistocene Map
Early Pleistocene Map
Late Pliocene Map
Late Pliocene Map