| 词条 | Ankylopoda |
| 释义 |
| image = Proganochelys Quenstedti.jpg | image_caption = Proganochelys quenstedti | taxon = Ankylopoda | authority = Lyson et al., 2012 | subdivision_ranks = Extant subclades | subdivision =
}} Ankylopoda is a 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] Stem-turtles and lepidosaurs have unique skull elements and features not seen in archosaurs (represented by extant crocodilians and birds). ClassificationThe 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.[3] {{clade| style=font-size:100%;line-height:100%|label1=Sauria |1={{clade |1=Archosauromorpha |label2= Ankylopoda/Lepidosauromorpha |2={{clade |1={{clade |1={{clade |1={{extinct}}Kuehneosauridae |label2=Lepidosauria |2={{clade |1=Squamata |2=Rhynchocephalia }} }} |label2= Pantestudines |2={{clade |label1={{extinct}}Sauropterygia |1={{clade |1={{extinct}}Eosauropterygia |2={{clade |1={{extinct}}Sinosaurosphargis |2={{extinct}}Placodontia }} }} |2={{clade |1={{extinct}}Eunotosaurus |2={{clade |1={{extinct}}Pappochelys |2={{clade |1={{extinct}}Odontochelys |label2= Testudinata |2={{clade |1={{extinct}}Proganochelys |2=Testudines }} }} }} }} }} }} }} }} }} See alsoArchelosauria, an alternative clade that places turtles as sister taxon to archosaurs. References1. ^{{cite journal | last1 = Lyson | first1 = T.R. | last2 = Sperling | first2 = E.A. | last3 = Heimberg | first3 = A.M. | last4 = Gauthier | first4 = J.A. | last5 = King | first5 = B.L. | last6 = Peterson | first6 = K.J. | year = 2012 | title = MicroRNAs support a turtle + lizard clade | journal = Biol. Lett. | volume = 8 | issue = 1| pages = 104–107 | doi=10.1098/rsbl.2011.0477 | pmid=21775315 | pmc=3259949}} 2. ^{{cite journal | last1 = Schoch | first1 = R. R. | last2 = Sues | first2 = H.-D. | year = 2015 | title = A Middle Triassic stem-turtle and the evolution of the turtle body plan | url = | journal = Nature | volume = 523| issue = 7562| pages = 584–7 | doi = 10.1038/nature14472 | pmid = 26106865 }} 3. ^{{Cite journal | last1 = Schoch | first1 = Rainer R. | last2 = Sues | first2 = Hans-Dieter | title = A Middle Triassic stem-turtle and the evolution of the turtle body plan | journal = Nature | volume = 523| issue = 7562| pages = 584–587| jstor = | doi = 10.1038/nature14472 | url = | format = | date = 24 June 2015 | subscription = yes | pmid=26106865}} 1 : Reptile taxonomy |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。