S. D.  Cairns, Gershwin, L. - A., Brook, F. J., Pugh, P., Dawson, E. W., V., O. Ocaña, Vervoort, W., Williams, G., Watson, J. E., Opresko, D. M., Schuchert, P., P. HIne, M., Gordon, D. P., Campbell, H. J., Wright, A. J., Sánchez, J. A., and Fautin, D. G., ?Phylum Cnidaria?, in New Zealand Inventory of Biodiversity. Volume One. Kingdom Animalia: Radiata, Lophotrochozoa, and Deuterostomia, vol. 1 (568 pages), D.  P.Gordon, Ed. Christchurch, New Zealand: Canterbury University Press, 2009, pp. 59-101.

A. G.  Collins, Schuchert, P., Marques, A. C., Jankowski, T., Medina, M., and Schierwater, B., ?Medusozoan phylogeny and character evolution clarified by new large and small subunit rDNA data and an assessment of the utility of phylogenetic mixture models?, Systematic biology, vol. 55, pp. 97-115, 2006.