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Ponder, W. F. "Superorder Caenogastropoda." In Mollusca: The Southern Synthesis. Part B. Fauna of Australia, vol. 5, edited by P. L. Beesley, G. J. B. Ross, and A. Wells. Melbourne, Australia: CSIRO Publishing, 1998.


Ponder, W. F., and Lindberg, D. R. "Towards a Phylogeny of Gastropod Mollusks: An Analysis Using Morphological Characters." Zoological Journal of the Linnaean Society, 119 (1997): 83-265.

David Lindberg, PhD

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Phylum Mollusca Class Bivalvia Number of families 105

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Bilaterally symmetrical mollusks, with a reduced head and typically two external shell valves, many of which are commercially important for human consumption and pearl production; some have major impacts on the world economy and environment

Photo: A coquina clam (Donax variabilis) underwater, with its siphons extended. (Photo by Harry Rogers/Photo Researchers, Inc. Reproduced by permission.)


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