Turtle classification explained

Turtles have been classified in different ways by different authors. While they were previously considered anapsids, they are now considered more derived.[1] Recent analyses of molecular evidence have strongly suggested that they belong in the clade Archosauromorpha (also known as Archelosauria).[2] Below are many of the possible classifications of Testudines and Testudinata:

Thomson and Shaffer, 2010

Below is a cladogram of living testudines found by Thomson and Shaffer in 2010:[3]

Sterli 2010

Below is a cladogram found by Sterli in 2010 in a phylogenetic analysis of Pleurodira:[4]

Joyce, 2007

Below is a cladogram found by Joyce in 2007 in his publication on turtle phylogeny:[5]

See also

Wikipedia category tree of Testudines taxonomy

Notes and References

  1. The evolutionary position of turtles revised. Naturwissenschaften. 2001-05-01. 0028-1042. 193–200. 88. 5. 10.1007/s001140100228. 11482432. Rafael. Zardoya. Axel. Meyer. 2001NW.....88..193Z . 7836810 .
  2. A phylogenomic analysis of turtles. Molecular Phylogenetics and Evolution. 2015-02-01. 250–257. 83. 10.1016/j.ympev.2014.10.021. Nicholas G.. Crawford. James F.. Parham. Anna B.. Sellas. Brant C.. Faircloth. Travis C.. Glenn. Theodore J.. Papenfuss. James B.. Henderson. Madison H.. Hansen. W. Brian. Simison. 25450099.
  3. Thomson, R.C. . Shaffer, H.B. . 2010. Sparse Supermatrices for Phylogenetic Inference: Taxonomy, Alignment, Rogue Taxa, and the Phylogeny of Living Turtles. Systematic Biology. 59. 1. 42–58. 10.1093/sysbio/syp075. 20525619. dead. https://web.archive.org/web/20101121224245/http://cnah.org/pdf_files/1483.pdf. 2010-11-21. free.
  4. Sterli. J.. 2010. Phylogenetic relationships among extinct and extant turtles: the position of Pleurodira and the effects of the fossils on rooting crown-group turtles. Contributions to Zoology. 79. 3. 93–106. 10.1163/18759866-07903002. 11336/84233. free.
  5. Joyce. W.G.. 2007. Phylogenetic Relationships of Mesozoic Turtles. Bulletin of the Peabody Museum of Natural History. 62. 48. 1. dead. https://web.archive.org/web/20130606110806/http://www.geo.uni-tuebingen.de/fileadmin/website/arbeitsbereich/palaeo/biogeologie/Images/Joyce_Publications/18__Joyce_2007.pdf. 2013-06-06. 10.3374/0079-032X(2007)48[3:PROMT]2.0.CO;2. 85998318 .

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