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首页> 外文期刊>Journal of Systematic Palaeontology >A new Permian temnospondyl with Russian affinities from South America, the new family Konzhukoviidae, and the phylogenetic status of Archegosauroidea
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A new Permian temnospondyl with Russian affinities from South America, the new family Konzhukoviidae, and the phylogenetic status of Archegosauroidea

机译：来自南美的具有俄罗斯亲和力的新二叠纪temspondyl，新科Konzhukoviidae家族和弓形龙的系统发育状况

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摘要

A new Permian temnospondyl from South America is described and considered to represent a new species - Konzhukovia sangabrielensis sp. nov. - of the genus Konzhukovia previously recorded exclusively from Russia. It consists of the anterior half and partial right side of the skull roof and palate. A comprehensive phylogenetic analysis was performed with several archegosauroids and other well-supported groups of temnospondyls in order to access the affinities of the new Brazilian species and test the monophyly of Archegosauroidea. Archegosauroidea was not recovered as a monophyletic group, comprising successive paraphyletic taxa. The only monophyletic group of 'archegosauroids' is the 'Tryphosuchinae' (in a sister-group relationship with Stereospondyli), composed of Tryphosuchus paucidens, Konzhukovia vetusta, K. tarda and K. sangabrielensis. As the diagnosis of T. paucidens is unclear and based on incomplete material, nested among three species of Konzhukovia, we consider this taxon to be a nomen dubium and purge it from the strict consensus tree. An alternative solution would be to erect a new taxonomic combination for T. paucidens. In order to solve these taxonomic problems, it is necessary to discover more complete material with a clear set of diagnostic characters, to either revalidate this taxon or provide a new combination for it. The phylogenetic results support the erection of a new family - Konzhukoviidae - to replace 'Tryphosuchinae' and accommodate Konzhukovia vetusta, K. tarda and K. sangabrielensis, the new Brazilian species basal to the Russian forms. An early diverging konzhukoviid in Gondwana leads to interesting insights regarding the evolution of the new family, stereospondyl origins, their early diversification and their palaeobiogeographical patterns of distribution.
机译：描述了一种来自南美的新二叠纪temspondyl，并被认为是一种新物种-Konzhukovia sangabrielensis sp。十一月-Konzhukovia属的-以前仅从俄罗斯录制。它由头骨顶和上颚的前半部分和右侧组成。为了了解新的巴西物种的亲和力并测试了弓形龙的单亲性，对几种弓形龙和其他支撑良好的类脊椎龙类进行了全面的系统发育分析。 Archegosauroidea并没有恢复为一系群，包括连续的类群生物群。唯一的类群“弓形类动物”是“ Tryphosuchinae”（与立体假单胞菌成姐妹关系），由Tryphosuchus paucidens，Konzhukovia vetusta，K。tarda和K. sangabrielensis组成。由于对T. paucidens的诊断尚不清楚，并且基于不完整的材料，嵌套在Konzhukovia的三个物种中，因此我们将此分类单元视为nomen dubium，并将其从严格的共识树中清除。另一种解决方案是为paucidens建立新的生物分类学组合。为了解决这些分类问题，有必要发现具有清晰诊断特征的更完整的材料，以重新验证该分类或为其提供新的组合。系统发育结果支持建立一个新的科（Konzhukoviidae），以取代“ Tryphosuchinae”并适应Konzhukovia vetusta，K。tarda和K. sangabrielensis，这是巴西种俄罗斯形式的新物种。冈瓦纳（Gondwana）的一个早期分化的konzhukoviid导致了关于新家族的进化，立体石首缘的起源，它们的早期多样化及其古生物地理分布模式的有趣见解。

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  • 来源
    《Journal of Systematic Palaeontology》 |2017年第4期|241-256|共16页
  • 作者

    Cristian Pereira Pacheco; Estevan Eltink; Rodrigo Temp Mueller; Sergio Dias-da-Silva;

  • 作者单位

    Programa de Pos-Graduacao em Ciencias Biologicas da Universidade Federal do Pampa, Sao Gabriel, CEP 93.700-000, RS, Brazil,Programa de Pos Graduacao em Biodiversidade Animal, Universidade Federal de Santa Maria, Av. Roraima, 1000, Camobi, CEP 97105-900 Santa Maria, RS, Brazil;

    Laboratorio de Paleontologia de Ribeirao Preto, FFCLRP, Universidade de Sao Paulo, Av. Bandeirantes 3900, 14040-901, Ribeirao Preto, Sao Paulo, Brazil;

    Programa de Pos Graduacao em Biodiversidade Animal, Universidade Federal de Santa Maria, Av. Roraima, 1000, Camobi, CEP 97105-900 Santa Maria, RS, Brazil;

    Centro de Apoio a Pesquisa Paleontologica, Universidade Federal de Santa Maria, Av. Roraima, 1000. Camobi, CEP 97105-900 Santa Maria, RS, Brazil;

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  • 正文语种 eng
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  • 关键词

    Stereospondylomorpha; Konzhukovia; Western Gondwana; Permian; Passa Dois Group; southern Brazil;

    机译：立体棘突;Konzhukovia;冈瓦纳西部;二叠纪Passa Dois集团;巴西南部;

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