original descriptionGray, J.E. (1832). The myriapods. <i>In</i>: Griffith: Animal Kingdom. II. Pl. 135. London. [details]
taxonomy sourceJeekel, C. A. W. (2001). A bibliographic catalogue of the Asiatic Sphaerotheriida (Diplopoda). Myriapod memoranda, 3: 5-38. Oisterwijk page(s): 17 [details]
taxonomy sourceBhansali, S.; Wesener, T. (2022). New Thai giant pill-millipede species, with new genetic barcoding data (Diplopoda, Sphaerotheriida, Zephroniidae). <em>Zootaxa.</em> 5105(3): 357-380., available online athttps://doi.org/10.11646/zootaxa.5105.3.2 page(s): 367 [details]
taxonomy sourceRosenmejer, T.; Enghoff, H.; Moritz, L.; Wesener, T. (2021). Integrative description of new giant pill-millipedes from southern Thailand (Diplopoda, Sphaerotheriida, Zephroniidae). <em>European Journal of Taxonomy.</em> 762., available online athttps://doi.org/10.5852/ejt.2021.762.1457 page(s): 120 [details]
additional sourceWesener, T. (2016). The Giant Pill-Millipedes, order Sphaerotheriida –
An annotated species catalogue
with morphological atlas
and list of apomorphies. <em>Bonn zoological Bulletin Supplementum.</em> 63: 1-107. page(s): 1 [details]
source of synonymyPorat, C. O. von (1872). Myriapoda Africae australis, in museo regio Holmiensi asservata, recensuit. Pars II. Diplopoda. Öfversigt af Kongliga Vetenskaps-Akademiens förhandlingar, 29(5): 3-46. Stockholm page(s): 4 [details]
redescriptionGolovatch, S. I.; Wesener, T.; Mauriès, J. P.; Semenyuk, I. I. (2012). On the identities of Cryxus Leach, 1814 and Zephronia Gray, 1832, the oldest generic names in the millipede order Sphaerotheriida (Diplopoda). <em>rej.</em> 21(1): 273294-0., available online athttps://doi.org/10.15298/arthsel.21.4.01 page(s): 273 [details]