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首页> 外文期刊>Journal of Systematic Palaeontology >The postcranial skeleton of the basal tapinocephalid dinocephalian Tapinocaninus pamelae (Synapsida: Therapsida) from the South African Karoo Supergroup
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The postcranial skeleton of the basal tapinocephalid dinocephalian Tapinocaninus pamelae (Synapsida: Therapsida) from the South African Karoo Supergroup

机译：基础蒂诺氏菌派氏派氏Pavinocanus pamelae（Sy​​napsida：Therapeida）的突发骨架来自南非karoo超级组

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摘要

Dinocephalians form an important component of the Guadalupian basal therapsid faunas of Pangaea. Most research undertaken on this clade has focused on the skull while postcranial research has lagged, largely because of the rarity of sufficiently complete specimens. The discovery of an almost complete skeleton of the basal tapinocephalid dinocephalian Tapinocaninus from the rocks of the lowermost Beaufort Group of South Africa for the first time provides an accurate vertebral count for a dinocephalian as well as morphological information on the appendicular skeleton. The long bones of Tapinocaninus pamelae are autapomorphic in several features within the dinocephalians, and the results enable discussion of some more general aspects of the appendicular skeleton of basal synapsids. Combined, the new data enable a new reconstruction of the posture of tapinocephalids. Although demonstrating several apomorphic characters, the skeleton retains pleisomorphic anatomical features previously known only in pelycosaur-grade synapsids, especially in the axial skeleton. The discovery greatly advances understanding of the postcranial morphology of tapinocephalid dinocephalians and will provide input on the enigmatic phylogenetic relationships of early therapsids.
机译：Dinocephalians形成瓜达卢普基地托管的重要组成部分Pangea。在这一思工上进行的大多数研究都集中在头骨上，而颅骨研究已经滞后，主要是因为足够完整的标本的罕见。从南非北非岩石岩石的岩石中发现了一个几乎完全骨架的基础骨盆派氏恐龙，首次为毒素以及关于附奇骨骼的形态学信息提供了准确的椎骨数。 Tapinocaninus pamelae的长骨是在Dinocephalians内的若干特征中的自身杂种，结果能够讨论基础康帕筛西西亚突的附奇骨骼的一些更一般方面。组合，新数据使得重建TapinoPyPalids的姿势。虽然展示了几个扑静脉特征，但骨架仅保留了以前仅在普通龙级康帕筛的渗透晶体解剖特征，尤其是在轴向骨架中。该发现大大提高了对TapinoCophalid毒素的衰老形态的理解，并将提供早期举报的神秘系统发育关系的输入。

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  • 来源
    《Journal of Systematic Palaeontology》 |2019年第24期|1767-1789|共23页
  • 作者

    Rubidge Bruce S.; Govender Romala; Romano Marco;

  • 作者单位

    Univ Witwatersrand ESI Private Bag 3 ZA-2050 Johannesburg South Africa|Univ Witwatersrand Sch Geosci Private Bag 3 ZA-2050 Johannesburg South Africa;

    Iziko Museums South Africa Res & Exhibit Dept POB 61 ZA-8001 Cape Town South Africa|Univ Cape Town Biol Sci Private Bag X3 ZA-7701 Cape Town South Africa;

    Univ Witwatersrand ESI Private Bag 3 ZA-2050 Johannesburg South Africa|Univ Witwatersrand Sch Geosci Private Bag 3 ZA-2050 Johannesburg South Africa;

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  • 正文语种 eng
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  • 关键词

    Tapinocaninus; postcranial skeleton; Dinocephalia; Permian; basal synapsids;

    机译：Tapinocaninus;衰退骨骼;Dinocephalia;二叠纪;基础康帕筛;

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