ELECTRONIC SOURCE
IUCN 2018. The IUCN Red List of Threatened Species. Version 2018-2

JOURNAL ARTICLE
Stanley, E.L., Bauer, A.M., Jackson, T.R., Branch, W.R. and Mouton, P. le F.N. 2011. Between a rock and a hard polytomy: Rapid radiation in the rupicolous girdled lizards (Squamata: Cordylidae). Molecular Phylogenetics and Evolution. 58:53-70

JOURNAL ARTICLE
Costandius, E., Mouton, P. le F.N. and Boucher, C. 2006. Conservation status of the dwarf crag lizard, <i>Pseudocordylus nebulosus</i>, from the Hottentot Holland Mountains, South Africa. South African Journal of Wildlife Research. 36:123-132

JOURNAL ARTICLE
Frost, D., Janies, D., Mouton, P. le F.N. and Titus, T. 2001. A molecular perspective on the phylogeny of the girdled lizards (Cordylidae, Squamata). American Museum Novitates. 3310:1-10

EDITED BOOK
Bates, M.F., Branch, W.R., Bauer, A.M., Burger, M., Marais, J., Alexander, G.J. and de Villiers, M.S. 2014. Atlas and Red List of the Reptiles of South Africa, Lesotho and Swaziland. Suricata 1. South African National Biodiversity Institute

THESIS
Mabe, L.T. 2009. Graceful Crag Lizards (Cordylidae: <i>Pseudocordylus capensis</i>) are a Recent Species Radiation in the Cape Fold Mountains. B.Sc. Honours thesis, University of the Free State, Qwaqwa Campus, Qwaqwa