摘要
Reptiles with two temporal openings in the skull are generally divided into two groups–the Lepidosauria (lizards, snakes, Sphenodon, ‘eosuchians’) and the Archosauria (crocodiles, thecodontians, dinosaurs, pterosaurs). Recent suggestions that these two are not sister-groups are shown to be unproven, whereas there is strong evidence that they form a monophyletic group, the Diapsida, on the basis of several synapomorphies of living and fossil forms. A cladistic analysis of skull and skeletal characters of all described Permo-Triassic diapsid reptiles suggests some significant rearrangements to commonly held views. The genus Petrolacosaurus is the sister-group of all later diapsids which fall into two large groups–the Archosauromorpha (Pterosauria, Rhynchosauria, Prolacertiformes, Archosauria) and the Lepidosauromorpha (Younginiformes, Sphenodontia, Squamata). The pterosaurs are not archosaurs, but they are the sister-group of all other archosauromorphs. There is no close relationship between rhynchosaurs and sphenodontids, nor between Prolacerta or Tanystropheus and lizards. The terms ‘Eosuchia’, ‘Rhynchocephalia’ and ‘Protorosauria’ have become too wide in application and they are not used. A cladistic classification of the Diapsida is given, as well as a phylogenetic tree which uses cladistic and stratigraphic data. .overlined { text-decoration: overline; } .struck { text-decoration:line-through; } .underlined { text-decoration:underline; } .doubleUnderlined { text-decoration:underline;border-bottom:1px solid #000; } Enhanced Article (HTML) Get PDF (4549K)Get PDF (4549K) More content like thisFind more content: like this articleFind more content written by: MICHAEL J. BENTON
摘要译文
在颅骨中具有两个颞叶开口的爬行动物通常分为两组：鳞蜥龙（蜥蜴，蛇，凤蝶，''''eosuchians''''）和宙龙（鳄鱼，恐龙，翼龙） 最近的建议，这两个不是姐妹组显示未经证实，而有强有力的证据表明，他们形成一个单系群体，Diapsida，基于生物和化石形式的几种同化所有描述的二叠纪 - 三叠纪的爬行动物的颅骨和骨骼特征的分类分析表明一些重要的重新安排常见的观点Petrolacosaurus属是所有后来的diapsids的姐妹组，分为两大类：Archosauromorpha（Pterosauria，Rhynchosauria，Prolacertiformes，亚历山大）和Lepidosauromorpha（Younginiformes，Sphenodontia，Squamata） 翼龙不是archosaurs，但他们是所有其他archosauromorphs the的姐妹组Rhynchosaurs和sphenodontid之间，以及Prolacerta或Tanystropheus和蜥蜴之间没有密切的关系。术语“楶，，楶，，，，，，，，，，，，，，，，，，，，，，，，，，， 以及使用分支和地层数据的系统发生树。 }竤truck {text-decoration：line-through; } underline {text-decoration：underline; }竏oubleUnderlined {text-decoration：underline; border-bottom：1px solid＃000;}增强文章（HTML）获取PDF（4549K）获取PDF（4549K）更多内容喜欢这篇文章更多内容：喜欢这篇文章更多内容基于：MICHAELJ BENTON
MICHAEL J. BENTON[*]. Classification and phylogeny of the diapsid reptiles[J]. Zoological Journal of the Linnean Society, 1985,84(2): 97-164