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Bhullar, B. A. S. (2011). "The Power and Utility of Morphological Characters in Systematics: A Fully Resolved Phylogeny of Xenosaurus and Its Fossil Relatives (Squamata: Anguimorpha)". Bulletin of the Museum of Comparative Zoology. 160 (3): 65–181. doi:10.3099/0027-4100-160.3.65. S2CID86328454.