Paleoanguimorpha Explained

Paleoanguimorpha is a clade of anguimorphs comprising Shinisauria (represented today by shinisaurids) and Goannasauria (represented today by Varanoidea which includes the families Lanthanotidae and Varanidae).[1] [2] [3] [4] [5] Morphological studies in the past also classified helodermatids and pythonomorphs with the varanoids in the clade Platynota,[6] [7] while the Chinese crocodile lizard was classified as a xenosaurid.[8] Current molecular work finds no support in these groupings and instead has found the helodermatids more related to Diploglossa in the sister clade Neoanguimorpha, while the Chinese crocodile lizard is the closet living relative to varanoids.[2] [3] Pythonomorphs represented by snakes today are not closely related to varanoids and are instead a sister lineage to Anguimorpha and Iguania in the clade Toxicofera.[1] [3]

Below is the phylogeny of the paleoanguimorph lineages after Pyron et al. (2013):[3]

See also

Notes and References

  1. 10.1038/nature04328 . 16292255 . Early evolution of the venom system in lizards and snakes . Nature . 439 . 7076 . 584–8 . 2005 . Fry . Bryan G. . Vidal . Nicolas . Norman . Janette A. . Vonk . Freek J. . Scheib . Holger . Ramjan . S. F. Ryan . Kuruppu . Sanjaya . Fung . Kim . Blair Hedges . S. . Richardson . Michael K. . Hodgson . Wayne. C. . Ignjatovic . Vera . Summerhayes . Robyn . Kochva . Elazar . 2006Natur.439..584F . 4386245 .
  2. 10.1016/j.crvi.2008.07.010 . 19281946 . The molecular evolutionary tree of lizards, snakes, and amphisbaenians . Comptes Rendus Biologies . 332 . 2–3 . 129–39 . 2009 . Vidal . Nicolas . Hedges . S. Blair . 23137302 . 2023-12-11 . 2024-03-09 . https://web.archive.org/web/20240309105919/https://comptes-rendus.academie-sciences.fr/biologies/articles/10.1016/j.crvi.2008.07.010/ . live .
  3. Pyron . Burbrink . Wiens . 2013 . A phylogeny and revised classification of Squamata, including 4161 species of lizards and snakes . BMC Evolutionary Biology . 13 . 93 . 10.1186/1471-2148-13-93 . 3682911 . 23627680 . free .
  4. Zheng. Yuchi. Wiens. John J.. Combining phylogenomic and supermatrix approaches, and a time-calibrated phylogeny for squamate reptiles (lizards and snakes) based on 52 genes and 4162 species . Molecular Phylogenetics and Evolution . 2016 . 94. Pt B. 537–547 . 10.1016/j.ympev.2015.10.009. 26475614.
  5. 10.1098/rsbl.2012.0703 . 22993238 . 3497141 . Resolving the phylogeny of lizards and snakes (Squamata) with extensive sampling of genes and species . Biology Letters . 8 . 6 . 1043–6 . 2012 . Wiens . J. J. . Hutter . C. R. . Mulcahy . D. G. . Noonan . B. P. . Townsend . T. M. . Sites . J. W. . Reeder . T. W. .
  6. McDowell . S.B. . Bogert, C.M. . 1954 . The systematic position of Lanthanotus and the affinities of the anguinomorphan lizards . Bulletin of the American Museum of Natural History . 105 . 1–141.
  7. Lee . M.S.Y. . 1997 . The phylogeny of varanoid lizards and the affinities of snakes . Philosophical Transactions: Biological Sciences . 352 . 1349 . 53–91 . 10.1098/rstb.1997.0005. 1691912 . 1997RSPTB.352...53L .
  8. Bhullar . B. A. S. . The Power and Utility of Morphological Characters in Systematics: A Fully Resolved Phylogeny of Xenosaurus and Its Fossil Relatives (Squamata: Anguimorpha) . 10.3099/0027-4100-160.3.65 . Bulletin of the Museum of Comparative Zoology . 160 . 3 . 65–181. 2011 . 86328454 .

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Paleoanguimorpha".

Except where otherwise indicated, Everything.Explained.Today is © Copyright 2009-2024, A B Cryer, All Rights Reserved. Cookie policy.