At one time, phylogeny was almost the exclusive province of paleontology (e.g., Simpson, 1961; Scagel et al., 1966). The stratigraphic positions of fossil taxa, coupled with the intermediate morphologies represented by the same taxa, guided interpretations of the evolutionary transformations of lineages. No repeatable methodologies, however, guided the construction of phylogenetic hypotheses; rather, evolutionary trees were devised on the basis of suites of characters considered important on the basis of the accumulated knowledge of qualified experts. The advent of a cladistic framework (Hennig, 1950, 1966) and computational methodologies (e.g., Farris, 1970; Fitch, 1971;...

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