Bond, J. E. & Opell, B. D. (2002). Phylogeny and taxonomy of the genera of south-western North American Euctenizinae trapdoor spiders and their relatives (Araneae: Mygalomorphae: Cyrtaucheniidae). Zoological Journal of the Linnean Society 136: 487-534. (
online PDF)
Bond et al 2012 A Reconsideration of the Classification of the Spider Infraorder Mygalomorphae (Arachnida: Araneae) Based on Three Nuclear Genes and Morphology (
online PDF)