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At 17.25 -0600 02-11-04, James Mahaffy wrote:
>I am teaching about echinoderms in paleo and wondered if
>pedicellaria ever showed up in microfossil preparations. Of course
>it might be difficult to either separate them from the limestone,
>since both might dissolve in acid and if you did they might not be
>recognized.
>
>If someone knows how to find them, I might try it with some Gilmore
>City limestone (Mississippian age).
The Silurian "ostracode" genus Bursulella Jones 1887 is now
recognized as representing pedicellaria. There's a recent monograph
on Devonian echinoderm sclerites that has a lot of pedicellaria,
including Bursulella (and references to it):
Boczarowski, A. 2001: Isolated sclerites of Devonian non-pelmatozoan
echinoderms. Palaeontologia Polonica 59.
Stefan
--
Stefan Bengtson
Senior Curator (invertebrate fossils)
Swedish Museum of Natural History
Department of Palaeozoology
Box 50007
SE-104 05 Stockholm
Sweden
tel. +46-8 5195 4220
+46-8 732 5218 (home)
fax +46-8 5195 4184
e-mail stefan.bengtson@nrm.se
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