Ankylopoda

From Wikipedia, the free encyclopedia
For the group of mammals, see Ancylopoda. For the group of dinosaurs, see Ankylosauria.

Ankylopoda
Proganochelys Quenstedti.jpg
Proganochelys quenstedti
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Clade: Sauria
Clade: Ankylopoda
Lyson et al., 2012
Extant subclades

Ankylopoda is a proposed clade that contains turtles and lepidosaurs (tuatara, lizards and snakes) and their fossil relatives. This clade is supported based on microRNAs[1] as well as the fossil record.[2] However, it is strongly contradicted by molecular evidence which supports Archelosauria.[3]

Classification[]

The cladogram below follows the most likely result found by another analysis of turtle relationships, this one using only fossil evidence, published by Rainer Schoch and Hans-Dieter Sues in 2015. This study found Eunotosaurus to be an actual early stem-turtle, though other versions of the analysis found weak support for it as a parareptile.[4]

Sauria
 

Archosauromorpha

 
 Ankylopoda/Lepidosauromorpha 
 
 

†Kuehneosauridae

 
Lepidosauria
 

Squamata

 
 

Rhynchocephalia

 
 
 
 Pantestudines 
†Sauropterygia
 

†Eosauropterygia

 
 
 

†Sinosaurosphargis

 
 

†Placodontia

 
 
 
 
 

†Eunotosaurus

 
 
 

†Pappochelys

 
 
 

†Odontochelys

 
 Testudinata 
 

†Proganochelys

 
 

Testudines

 
 
 
 
 
 
 
 

See also[]

  • Archelosauria, an alternative clade that places turtles as sister taxon to archosaurs.

References[]

  1. ^ Lyson, T.R.; Sperling, E.A.; Heimberg, A.M.; Gauthier, J.A.; King, B.L.; Peterson, K.J. (2012). "MicroRNAs support a turtle + lizard clade". Biol. Lett. 8 (1): 104–107. doi:10.1098/rsbl.2011.0477. PMC 3259949. PMID 21775315.
  2. ^ Schoch, R. R.; Sues, H.-D. (2015). "A Middle Triassic stem-turtle and the evolution of the turtle body plan". Nature. 523 (7562): 584–7. doi:10.1038/nature14472. PMID 26106865.
  3. ^ Joyce, Walter G.; Anquetin, Jérémy; Cadena, Edwin-Alberto; Claude, Julien; Danilov, Igor G.; Evers, Serjoscha W.; Ferreira, Gabriel S.; Gentry, Andrew D.; Georgalis, Georgios L.; Lyson, Tyler R.; Pérez-García, Adán (2021-02-09). "A nomenclature for fossil and living turtles using phylogenetically defined clade names". Swiss Journal of Palaeontology. 140 (1): 5. doi:10.1186/s13358-020-00211-x. ISSN 1664-2384.
  4. ^ Schoch, Rainer R.; Sues, Hans-Dieter (24 June 2015). "A Middle Triassic stem-turtle and the evolution of the turtle body plan" (PDF). Nature. 523 (7562): 584–587. doi:10.1038/nature14472. PMID 26106865.


Stub icon

This reptile article is a stub. You can help Wikipedia by .

  • v
  • t
Retrieved from ""