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Conus (Magelliconus) harbisonae (Petuch, 1994)
Description (2): Shell of average size for subgenus, narrow, straight-sided, with flat spire; shoulder sharply-angled, carinated; body whorl smooth and polished, with 10-12 large spiral cords around anterior tip; spire whorls ornamented with single large spiral cord; aperture very narrow; protoconch raised, mammilate.
Holotype: UF66427, Length 18 mm.
Type Locality: Caloosahatchee Fauna (coral reef facies only), from Miami Canal dredging, 20 miles south of Lake Harbor, Palm Beach County.
Remarks: Conus harbisonae is the second-known member of the sub-genus Magelliconus da Motta, 1991 to be found in the Floridian fossil record. The new species could only be confused with C. griffini Petuch, 1990 (Plate 94, Figures C, D) from the younger Bermont Fauna, but differs in being a broader, stockier, less-elongated shell with a higher spire and smaller protoconch.
Etymology: Named for Ms. Anne Harbison who, along with A. A. Olsson in 1953, published the landmark work, Pliocene Mollusca of Southern Florida.
Le tre specie Conus griffini, Conus gravesi e Conus harbisonae potrebbero essere sinonimi del Conus daucus (1).
Conus harbisonae is from the Fort Denaud Member, Caloosahatchee formation, Charlotte County (Florida)
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231-02 and 2312-03 are Dauciconus harbisonae---griffini is much smaller and has a perfectly flat spire with a large nipple-like protoconch sticking up---and harbisonae is from the Fort Denaud Member of the Caloosahatchee Formation----it is not from the Holey Land Member of the Bermont Formation----the member is named after the Holey Land Wildlife Conservation Area in southwestern Palm Beach County, where the old Griffin Brothers Pit was located----they brought up both Caloosahatchee and Bermont fossils at the Griffin Pit- |
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Bibliografia Consultata
