Runnegar B. (1996). Early evolution of the Mollusca: the fossil record. Taylor, J. (ed.), Origin and Evolutionary Radiation of the Mollusca. Oxford University Press. pp. 77-87.
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Runnegar B.
1996
Early evolution of the Mollusca: the fossil record
Taylor, J. (ed.), Origin and Evolutionary Radiation of the Mollusca. Oxford University Press