Wesener, T. (2016)

Redescription and phylogenetic analysis of the type species of the giant pill-millipede genus Sphaeropoeus Brandt, 1833 (Diplopoda, Sphaerotheriida, Zephroniidae)

. Zootaxa, 4184 (1), 141–157.
https://doi.org/10.11646/zootaxa.4184.1.9