Literature
- Gullan, P.J., and P.S. Cranston 1999. The insects: an outline of entomology. Second edition. Blackwell Science, Malden, MA, USA. 470 pp.
- Kristensen, N.P. 1991. 5. Phylogeny of extant hexapods. In: I.D. Naumann (ed.), The insects of Australia. Second edition. Volume I. Division of Entomology, Commonwealth Scientific and Industrial Research Organisation. Melbourne University Press, Victoria, Australia: 125-140.
- Margulis, L. and K.V. Schwartz 1998. Five kingdoms: an illustrated guide to the phyla of life on Earth. Third edition. W.H. Freeman and Company, New York, USA. 520 pp.