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Subject:	Re: Taxonomy
From:	bivalve <[log in to unmask]>
Reply To:	Conchologists of America List <[log in to unmask]>
Date:	Wed, 8 Oct 2003 12:25:02 -0400
Content-Type:	text/plain
Parts/Attachments:	text/plain (15 lines)

>I believe the WBD systematics are a bit dated<

Yes-they do not list Monoplacophora (which some current classifications would split up), and the bivalve ordinal groupings seem to more or less match the 1969 Treatise on Invertebrate Paleontology groupings.  Changes include rearranging the Pteriomorphia (molecular data and some morphology points to a Pterioidea-Pinnoidea-Ostreoidea versus Pectinoidea-Plicatuloidea-Anomioidea-Limoidea split, not Ostreoidea by itself) and splitting the Myoida up within Veneroida.

    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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