Patterns of variation and covariation in the shapes of mandibular bones of juvenile salmonids in the genus Oncorhynchus.

Abstract excerpt

What is the nature of evolutionary divergence of the jaw skeleton within the genus Oncorhynchus? How can two associated bones evolve new shapes and still maintain functional integration? Here, we introduce and test a "concordance" hypothesis, in which an extraordinary matching of the evolutionary shape changes of the dentary and angular articular serves to preserve their fitting together. To test this hypothesis,...

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