Paper 67. John A. Wallwork. 1979. Relict distributions of oribatid mites. Pages 515-521. In: J. G. Rodriguez (editor). Recent Advances in Acarology Volume II. Proceedings of the V International Congress of Acarology, August 6-12 at Michigan State University, East Lansing, Michigan, New York: Academic Press, 569 pages.

Keywords: oribatids are a very ancient group of arachnids and that genera present in the world fauna today have existed unchanged for long periods of geological time, opponents of this view argue that due to their small size it is not necessary to invoke the events of continental drift to account for their present distribution, fossil record, the world distribution of Mucronothrus nasalis is presented as evidence and by Crotonia possessing a harmonic relict distribution pattern, evolution