Pomorski, R. J., and I. J. Kapruś. “Revision of the Genus Spinonychiurus Weiner 1996 (Collembola: Onychiuridae) With Description of Five New Species”. Zootaxa, vol. 3914, no. 2, Jan. 2015, pp. 101–121, doi:10.11646/zootaxa.3914.2.1.