Recent 'Sphinctozoa', Order Verticillitida, Family Verticillitidae Steinmann, 1882
Vacelet, J. (2002). Recent 'Sphinctozoa', Order Verticillitida, Family Verticillitidae Steinmann, 1882, in: Hooper, J.N.A. et al. (Ed.) Systema Porifera: a guide to the classification of Sponges. pp. 1097-1098
In: Hooper, J.N.A.; Van Soest, R.W.M. (Ed.) (2002). Systema Porifera: A guide to the classification of Sponges. Kluwer Academic/Plenum Publishers: New York. ISBN 0-306-47260-0. 2 vols. pp., meer
