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Subject:	Re: Fossil Pleurotomaria?
From:	bivalve <[log in to unmask]>
Reply To:	Conchologists of America List <[log in to unmask]>
Date:	Tue, 18 Sep 2001 19:18:48 -0400
Content-Type:	text/plain
Parts/Attachments:	text/plain (16 lines)

The Treatise on Invertebrate Paleontology volume on gastropods illustrates the Mesozoic pleurotomariid genera fairly well; unfortunately, my copy is packed up.  If I recall correctly, Pleurotomaria s.s. is Cretaceous.  You should be able to tell if it had a selenizone by examining the growth lines.  I cannot tell from the photo.  The selenizone is a structural weak area, so fossil pleurotomariids frequently have the apertural region broken off.

    Dr. David Campbell
    "Old Seashells"
    46860 Hilton Dr #1113
    Lexington Park MD 20653 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




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