Triplofusus gigantea is not uncommon as a fossil in southern Florida in
the early Pleistocene Caloosahatchee Fauna and locally common in the
middle Pleistocene Bermont and late Pleistocene Ft. Thompson Faunas.  I
have found Turbinella angulata (rare) in the Bermont and Fort Thompson
Faunas.
   Another Yucatan connection to southern Florida is Melongena bispinosa
(Phillipi,1844), which I have found in the Bermont.
Allen Aigen
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On Tue, 3 Jul 2001 17:17:26 -0400 bivalve
<[log in to unmask]> writes:
> This is perhaps a good place to note that the genus for the Florida
> horse conch (and its Panamic cousin, among others) should be
> Triplofusus Olsson and Harbison.  Keen, 1971 noted that they do not
> belong in Pleuroploca, but overlooked the Olsson and Harbison genus.
>  L. Campbell 1993 (recently cited on this list for Pliocene
> identifications) mentions this as well.
>
>     Dr. David Campbell
>     "Old Seashells"
>     Biology Department
>     Saint Mary's College of Maryland
>     18952 E. Fisher Road
>     St. Mary's City, MD  20686-3001 USA
>     [log in to unmask]
>
> "That is Uncle Joe, taken in the masonic regalia of a Grand Exalted
> Periwinkle of the Mystic Order of Whelks"-P.G. Wodehouse, Romance at
> Droigate Spa
>