plesiomorphy (pl. Plesiomorphies)
Glossary of "Cladistics (2nd ed.)" by Kitching et al. (1998)
- A method of classification that utilized hypotheses of character transformation to group taxa hierarchically into nested sets and then interprets these relationships as a phylogenetic tree. See also cladistics.
Glossary of Plant Systematics (1st ed.) by Simpson (2006)
- A methodology for inferring the pattern of evolutionary history of a group of organisms by grouping taxa based on apomorphies. Syn: cladistics.
- Kitching, I. J., Forey, P. L. Humphries, C. J. & Williams, D. M. 1998. Cladistics, 2nd ed.: the Theory and Practice of Parsimony Analysis. -xii + 228 pp. Oxford University Press, New York.
- Simpson, M. G. 2006. Plant Systematics. -xi + 590 pp. Elsevier Academic Press, Oxford.