The large fossil is an internal mold of a large bivalve.  Although some Glossidae are similar, as he mentions, a large arcoid such as Cucullaea would also be a likely possibility.  The "pearls" look like external molds of small bivalves, preserved inside the large one.

-----Original message-----
From: Avril Bourquin [log in to unmask]
Date: Tue,  4 May 2004 13:46:12 -0400
To: [log in to unmask]
Subject: Fossil pearls

>
>  Hello Conchlers,
>
>  I have a gentleman from Bogotá, Columbia trying to find some information on
>  fossilzed pearls.  Tomas's mystery page can be viewed at:
>  http://www.manandmollusc.net/Mystery_shell_pages/tomas-mystery.html
>
>  Tomas speaks mailnly Spanish but can read English as well.  His private
>  email address is: [log in to unmask]
>
>  Any help would be greatly appreciated.
>
>  All the very best,
>  Avril
>  Avril Bourquin
>  P.O. Box 366
>  Invermere, B.C.
>  Canada
>  V0A 1K0
>
>  Email:  [log in to unmask]
>  Phone/Fax:  (250) 342-7224
>  URL:  http://www.manandmollusc.net
>
>
>
>


Dr. David Campbell
    Old Seashells
    University of Alabama
    Biodiversity & Systematics
    Dept. Biological Sciences
    Box 870345
    Tuscaloosa, AL  35487-0345 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 Droitgate Spa

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