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  E-mail Message: I thought you might be interested in this item at http://www.worldcat.org/oclc/1228642 Title: Phylogeny of the Echini, with a revision of Palaeozoic species. Author: Robert Tracy Jackson Publisher: Boston, The Society, 1912. OCLC:1228642
  

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Subjects

• Sea urchins, Fossil.
• Paleontology -- Paleozoic.

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Phylogeny of the Echini, with a revision of Palaeozoic species.

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