Reverter-Gil, O., J. Souto, and E. Fernández-Pulpeiro. “Revision of the Genus Crepis Jullien (Bryozoa: Cheilostomata) With Description of a New Genus and Family and Notes on Chlidoniidae”. Zootaxa, vol. 2993, no. 1, Aug. 2011, pp. 1–22, doi:10.11646/zootaxa.2993.1.1.