Xenosaurus platyceps KING & THOMPSON, 1968

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Higher Taxa	Xenosauridae, Diploglossa, Anguimorpha, Sauria, Squamata (lizards)
Subspecies
Common Names	E: Flathead Knob-scaled Lizard S: Xenosauro de Cabeza-plana
Synonym	Xenosaurus platyceps KING & THOMPSON 1968 Xenosaurus platyceps — LINER 1994 Xenosaurus platyceps — PÉREZ RAMOS et al. 2000 Xenosaurus platyceps — PIANKA & VITT 2003: 237 Xenosaurus platyceps — LINER & CASAS-ANDREU 2008 Xenosaurus platyceps — JOHNSON et al. 2017
Distribution	Mexico (Tamaulipas) Type locality:. Tamaulipas., 15,4 mi SSW Ciudad Victoria on road to Jaumave, 4,500 feet elevation.
Reproduction	ovovivparous
Types	Holotype: UMMZ 126048: collected 16 August 1965 by Fred G. Thompson. Paratypes: UMMZ 126044, 126045, 126046, 126047, 126049, 12650; UF 25005; REE 1791; all same data as the type.
Diagnosis
Comment	Distribution: see map in WOOLRICH-PIÑA & SMITH 2012. Not in Querétaro fide Tepos-Ramírez et al. (2023).
Etymology	named after its flat [Greek: platy] head [-ceps].
References	Augstenová, Barbora, Eleonora Pensabene, Lukáš Kratochvíl, and Michail Rovatsos. 2021. Cytogenetic Evidence for Sex Chromosomes and Karyotype Evolution in Anguimorphan Lizards. Cells 10, no. 7: 1612 - get paper here 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). Bull. Mus. Comp. Zool. Harvard 160 (3): 65–181 - get paper here Johnson, J. D., L. D. Wilson, V. Mata-Silva, E. García-Padilla, and D. L. DeSantis. 2017. The endemic herpetofauna of Mexico: organisms of global significance in severe peril. Mesoamerican Herpetology 4(3): 544–620 - get paper here King, F. W., & THOMPSON, F. G. 1968. A review of the American lizards of the genus Xenosaurus Peters. Bulletin of the Florida State Museum 12: 93-123. - get paper here Lemos-Espinal, J. A., G. R. Smith and R. E. Ballinger 2004. Aspects of the ecology of a distinct population of Xenosaurus platyceps from Querétaro, México. Amphibia-Reptilia 25 (2): 204-210 - get paper here Lemos-Espinal, Julio A.;Smith, Geoffrey R.;Ballinger, Royce E. 1998. Natural history of Xenosaurus platyceps, a crevice-dwelling lizard from Tamaulipas, México. Herpetological Natural History 5 (2): 181-186 [1997] Molina-Zuluaga, Claudia, Paul F. Doherty, J. Jaime Zúñiga-Vega, and J. Gastón Zamora-Abrego 2013. Survivorship, Growth, and Detection of a Knob-scaled Lizard in Queretaro, Mexico. Journal of Herpetology Mar 2013, Vol. 47, No. 1: 156-161. - get paper here Nieto-Montes de Oca, Adrián; Anthony J. Barley, Rubi N. Meza-Lázaro, Uri O. García-Vázquez, Joan G. Zamora-Abrego, Robert C. Thomson, Adam D. Leaché 2016. Phylogenomics and species delimitation in the knob-scaled lizards of the genus Xenosaurus (Squamata: Xenosauridae) using ddRADseq data reveal a substantial underestimation of diversity. Molecular Phylogenetics and Evolution 106: 241-253 - get paper here Nieto-Montes de Oca, Adrián; Uri O. García-Vázquez, J. Jaime Zúñiga-Vega and Walter Schmidt-Ballardo 2013. A new species of Xenosaurus (Squamata: Xenosauridae) from the Sierra Gorda Biosphere Reserve of Querétaro, Mexico. Revista Mexicana de Biodiversidad 84: 485-498 - get paper here Pérez Ramos, Edmundo; Lucia Saldaña de la Riva; Jonathan A. Campbell 2000. A new allopatric species of Xenosaurus (Squamata: Xenosauridae) from Guerrero, Mexico. Herpetologica 56 (4): 500-506 - get paper here Pianka, E.R. & Vitt, L.J. 2003. Lizards - Windows to the Evolution of Diversity. University of California Press, Berkeley, 347 pp. [review in Copeia 2004: 955] - get paper here ROJAS-GONZÁLEZ, R. ISAAC; JULIO A. LEMOS-ESPINAL & GEOFFREY R. SMITH. 2022. Ectoparasite prevalence of the Flathead Knob-scaled Lizard Xenosaurus platyceps in tropical and temperate populations. Salamandra 58(1): 76–80. - get paper here Rojas-González, R.I., J.J. Zúñiga-Vega & J.A. Lemos-Espinal 2008. Reproductive Variation of the Lizard Xenosaurus platyceps: Comparing Two Populations of Contrasting Environments Journal of Herpetology 42 (2): 332-336. - get paper here Rojas-González, Ramon Isaac, and Joan Gastón Zamora-Abrego. 2016. First record of snake predation in Xenosaurid lizards: Xenosaurus platyceps feeding on Adelphicos quadrivirgatum. Mesoamerican Herpetology 3(4): 1013–1014 - get paper here Smith, G.R., J.A. Lemos-Espinal, and R.E. Ballinger 2000. Xenosaurus platyceps King and Thompson Flathead Knob-scaled Lizard. Catalogue of American Amphibians and Reptiles (715): 1-2 - get paper here Terán-Juárez, Sergio A., Elí García Padilla, Vicente Mata-Silva, Jerry D. Johnson and Larry David Wilson. 2016. The herpetofauna of Tamaulipas, Mexico: composition, distribution, and conservation status. Mesoamerican Herpetology 3 (1): 43–113 - get paper here Terán-Juárez, Sergio Alejandro; Pablo Antonio Lavín Murcio, Elí García-Padilla y David Lazcano Villarreal 2024. Reptiles. En: La biodiversidad en Tamaulipas. Estudio de Estado. Vol. ii. Conabio, México, pp. 447-456 - get paper here Woolrich-Piña, Guillermo A. and Geoffrey R. Smith 2012. A New Species of Xenosaurus from the Sierra Madre Oriental, Mexico. Herpetologica 68 (4): 551-559. - get paper here
External links	IUCN Red List National Center for Biotechnology Information Google images

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