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Conus (Lithoconus) jonesorum (Petuch, 1994)
Description (2): Shell small for sub-genus, distinctly pyriform, with low, flattened spire and rounded shoulder; spire whorls canaliculate; body whorl smooth, shiny, faintly ornamented with 15 low, almost obsolete spiral cords; anterior tip with 10 large, strong spiral cords; aperture narrow; color pattern (when preserved, as on holotype) composed of 12 wide spiral bands of large rectangular spots.
Holotype: UF66430, Length 38 mm.
Type Lcoality: Pinecrest Beds Fauna, from Petuch Unit 3, APAC pit, Sarasota, Sarasota County.
Remarks: Conus jonesorum is most similar to the older, stratigraphi-cally-lower C. cherokus Olsson and Petit, 1964 (Plate 93, Figure A) from Petuch Unit 7, but differs in being a smaller, more pyriform shell with a lower, canaliculate spire, and in having distinct spiral cords on the body whorl.
Etymology: Named for Dr. Douglas and Mrs. (Sheila) Jones of Gaines-ville, Florida.
L’holotipo del Conus jonesorum mostra la caratteristica colorazione del Conus yaquensis ed è coincidente in tutte la caratteristiche della conchiglia. Petuch osservò come i Conus cherokus più antichi, negli strati inferiori, siano molto simili al Conus jonesorum (1).
The holotype of C. jonesorum Petuch, 1994 (UF 66430, Pl. 15, Figs 4-5), bears the characteristic netted coloration pattern of C. yaquensis and is consistent in all other aspects of shell form as well. Petuch (1994: 355), however, stated that “Conus jonesorum is most similar to the older, stratigraphically-lower C. cherokus” (here considered a junior synonym of C. spurius), but made no reference to C. yaquensis (1).
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Bibliografia Consultata
(1) HENDRICKS, Jonathan R. ,THE GENUS CONUS (MOLLUSCA: NEOGASTROPODA) IN THE PLIO-PLEISTOCENE OF THE SOUTHEASTERN UNITED STATES - 2008
(2) Petuch (1994) “Atlas of Florida fossil shells : (Pliocene and Pleistocene marine gastopods) “
