Glossary of "Cladistics (2nd ed.)" by Kitching et al. (1998)
- A character or character state for which the coding depends upon the coding allocated to another character or character state. For example, features of wing venation in insects are dependent upon the presence of a wing.
- 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.