In 16.29 13/03/2000 +0000, hai scritto:
>Siphocypraea problematica Heilprin, 1887 is known from Florida
>Carolinas, in the late to latest Pliocene Waccamaw and
>Formations. The genus originated by the Early Miocene,
occurring in the
>Chipola Formation (Siphocypraea s.s.), with Muracypraea ranging
>Miocene to Recent. Olsson and Petit (1968, Bull. Am.
>available as part of Paleontological Research Institute Special
>19, Papers on Neogene Mollusks by Axel A. Olsson) discuss the
>Current information on distribution is in L. Campbell, 1993,
>molluscs from the Yorktown and Chowan River Formations in
>Virginia Division of Mineral Resources Publication 127.
This lineage is
>highly variable in the Pliocene of Florida; Petuch illustrates
>the variations as new genera and species.
>Dr. David Campbell
>Department of Geological Sciences
>CB 3315 Mitchell Hall
>University of North Carolina at Chapel Hill
>Chapel Hill NC 27599-3315
>"He had discovered an unknown bivalve, forming a new
genus"-E. A. Poe, The
For your precious information about this strange old cowrie...now I
know more about
it with you help
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