N.B.: described as a subfamily of Ctenizidae by Pocock, 1901e: 207 (type genus Halonoproctus, which is a synonym of Cyclocosmia), elevated to family level by Pocock, 1903h: 352; included in Ctenizidae by Simon, 1903a: 884 (sub Ctenizinae, Cyclocosmieae) and listed there by the subsequent catalogues; recircumscribed and splitted from Ctenizidae by Godwin et al., 2018: 307; the family is not monophyletic per Kulkarni, Wood & Hormiga, 2023: 487, f. 5.