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Published August 23, 1968 | public
Journal Article

Mollusk Shell: Daily Growth Lines

Abstract

Ridges forming the concentric sculpture on the shells of laboratory-grown specimens of Pecten diegensis Dall show daily periodicity. Missing growth lines account for all scatter in the data, so that the maximum, not the average, line count is most representative. The variation in spacing between growth lines can be correlated among specimens.

Additional Information

© 1968 American Association for the Advancement of Science. Received 15 April 1968; revised 10 June 1968. Supported in part by NSF grant GB-6275. Contribution 1530, Division of Geological Sciences, California Institute of Technology.

Additional details

Created:
August 19, 2023
Modified:
October 25, 2023