B.  Misof, Rickert, A. M., Buckley, T. R., Fleck, G., and Sauer, K. P., ?Phylogenetic signal and its decay in mitochondrial SSU and LSU rRNA gene fragments of Anisoptera.?, Molecular biology and evolution, vol. 18, no. 1, pp. 27 - 37, 2001.

H. T.  Ogden and Whiting, M. F., ?Phylogeny of Ephemeroptera (mayflies) based on molecular evidence.?, Molecular phylogenetics and evolution, vol. 37, no. 3, pp. 625 - 43, 2005.

H. J.  Dumont, Vanfleteren, J. R., De Jonckheere, J. F., and Weekers, P. H., ?Phylogenetic relationships, divergence time estimation, and global biogeographic patterns of calopterygoid damselflies (odonata, zygoptera) inferred from ribosomal DNA sequences.?, Systematic biology, vol. 54, no. 3, pp. 347 - 62, 2005.

L. F.  Groeneveld, Clausnitzer, V., and Hadrys, H., ?Convergent evolution of gigantism in damselflies of Africa and South America? Evidence from nuclear and mitochondrial sequence data.?, Molecular phylogenetics and evolution, vol. 42, no. 2, pp. 339 - 46, 2007.

S. M.  Bybee, Ogden, H. T., Branham, M. A., and Whiting, M. F., ?Molecules, morphology and fossils: a comprehensive approach to odonate phylogeny and the evolution of the odonate wing?, Cladistics, vol. 24, no. 4, pp. 477 - 514, 2008.