Boie F. 1828. Über eine noch nichte beschriebene Art von Cordylus Gronov. Cordylus cataphractus Boie. Nova Acta Academiae Caesareae Leopoldino-Carolinae (Halle) 14 (1): 139-142.
Boulenger GA (1885). Catalogue of the Lizards in the British Museum (Natural History). Second Edition. Volume III. Iguanidæ, Xenosauridæ, Zonuridæ ... London: Trustees of the British Museum (Natural History). (Taylor and Francis, printers). xiii + 497 pp. + Plates I-XXIV. (Zonurus cataphractus, pp. 255–256).
Branch, Bill (2004). Field Guide to Snakes and other Reptiles of Southern Africa. Third Revised edition, Second impression. Sanibel Island, Florida: Ralph Curtis Books. 399 pp. ISBN0-88359-042-5. (Cordylus cataphractus, pp. 186–187 + Plate 68).
Stanley EL, Bauer AM, Jackman TR, Branch WR, Mouton PLN. 2011. Between a rock and a hard polytomy: Rapid radiation in the rupicolous girdled lizards (Squamata: Cordylidae). Molecular Phylogenetics and Evolution 58: 53-70. ("Ouroborus gen. nov.", p. 65.)
