| Taxonomic Hierarchy 
        
          |  |  |  |  |  |  | Kingdom | Animalia 
 – Animal, animaux, animals |  |  |  | Subkingdom | Bilateria 
 – triploblasts |  |  |  | Infrakingdom | Deuterostomia |  |  |  | Phylum | Chordata 
 – cordés, cordado, chordates |  |  |  | Subphylum | Vertebrata 
 – vertebrado, vertébrés, vertebrates |  |  |  | Infraphylum | Gnathostomata |  |  |  | Superclass | Tetrapoda |  |  |  | Class | Reptilia Laurenti, 1768
 – répteis, reptiles, Reptiles |  |  |  | Order | Squamata Oppel, 1811
 – Amphisbaenians, Lizards, Snakes, amphisbènes, lézards, serpents |  |  |  | Suborder | Iguania 
 – iguanes, Iguanas |  |  |  | Family | Crotaphytidae 
 – Collared Lizards, Leopard Lizards |  |  |  | Subfamily | Crotaphytinae |  |  |  | Genus | Crotaphytus Holbrook, 1842 – Collared Lizards |  |  
          |  |  | Direct Children: |  |  |  | Species | Crotaphytus antiquus R. W. Axtell and Webb, 1995 |  |  |  | Species | Crotaphytus bicinctores N. M. Smith and Tanner, 1972
 – Great Basin Collared Lizard, Mojave Black-collared Lizard, Desert Collared Lizard |  |  |  | Species | Crotaphytus collaris (Say in James, 1823)
 – Collared Lizard, Eastern Collared Lizard, Lagartija-de collar común |  |  |  | Species | Crotaphytus dickersonae K. P. Schmidt, 1922 |  |  |  | Species | Crotaphytus insularis Van Denburgh and Slevin, 1921
 – Black-collared Lizard, Desert Collared Lizard, Lagartija-de collar negra, Eastern Collared Lizard |  |  |  | Species | Crotaphytus nebrius R. W. Axtell and Montanucci, 1977
 – Sonoran Collared Lizard |  |  |  | Species | Crotaphytus reticulatus Baird, 1859
 – Reticulate Collared Lizard, Lagartija-de collar reticulada |  |  |  | Species | Crotaphytus vestigium N. M. Smith and Tanner, 1972
 – Baja California Collared Lizard, Baja Black-collared Lizard |  |  
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