ON THE INDEPENDENCE OF SYSTEMATICS

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Abstract
— Before the publication of On the Origin of Species the standing patterns of natural history—common plan, homology, ontogenetic parallelism, and the hierarchy of groups — were taken as indications of a biological order that had not yet been understood. Darwin covered all of these in chapter 13 of the Origin, arguing that his theory was the first to provide a reasonable explanation for the existence of such patterns. Since Darwin took these relations to be established by previous biology, and used them as evidence for the explanatory power of his theory, he was clearly of the opinion that they were independent of that theory. Although several modern figures have argued to the contrary, it seems that Darwin was right. The patterns listed above are recoverable from observation without reference to evolutionary theory, which theory may then be applied to provide an account of the processes by which they may have come about. That aspect of systematics concerned with the identification of the empirical patterns evidently constitutes a study prior to and independent of theories of process.