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Order Squamata. Number of families About 42. Number of genera, species About 1,880 genera; 7,200 species. Evolution and systematics. Squamates are the most diverse living clade of reptiles, including about 1,440 genera and 4,450 species of lizards plus 440 genera and 2,750 species of snakes.
Squamata (scaled reptiles) is the most diverse order of extant reptiles, comprised of the lizards and snakes and characterized a flexible jaw structure (movable quadrate bones) and having scales or shields rather than shells or secondary palates.
Aug 16, 2019 · Updated on August 16, 2019. Squamates (Squamata) are the most diverse of all the reptile groups, with approximately 7400 living species. Squamates include lizards, snakes, and worm lizards. There are two characteristics that unite the squamates. The first is that they shed their skin periodically.
The scaled quail (Callipepla squamata), also commonly called blue quail or cottontop, is a species of the New World quail family. It is a bluish gray bird found in the arid regions of the Southwestern United States to Central Mexico. This species is an early offshoot of the genus Callipepla, diverging in the Pliocene.
May 31, 2018 · Modern squamates (lizards, snakes and amphisbaenians) are the world’s most diverse group of tetrapods along with birds 1 and have a long evolutionary history, with the oldest known fossils dating...
Aug 19, 2023 · Molecular phylogenetics of Squamata: The position of snakes, amphisbaenians, and dibamids, and the root of the squamate tree. Systematic Biology 53 (5): 735–757. DOI: 10.1080/10635150490522340 Reference page . Vidal, N. & Hedges, S.B. 2005. The phylogeny of squamate reptiles (lizards, snakes, and amphisbaenians) inferred from nine nuclear ...
Susan E. Evans. Edited by. David J. Gowerand. Hussam Zaher. Chapter. Book contents. Get access. Share. Cite. Summary. Squamata, the group that comprises lizards, snakes, and amphisbaenians, is the largest and most diverse major group of living reptiles.
