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首页> 外文期刊>Journal of Systematic Palaeontology >Permian spiriferellid brachiopods from northern Pangaea: taxonomy, biostratigraphy, macroevolution and implications for palaeoenvironmental and palaeobiogeographical reconstructions
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Permian spiriferellid brachiopods from northern Pangaea: taxonomy, biostratigraphy, macroevolution and implications for palaeoenvironmental and palaeobiogeographical reconstructions

机译：来自Pangea Northern Pangea的Permian Spiriferellid Brachiopods：分类法，生物数据，宏观调查和古环境和古奥法地图重建的影响

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摘要

This study reports diverse spiriferellid brachiopods from the Permian rocks of Svalbard and adjacent areas (Arctic Canada and Subpolar Urals of Russia) located at the northern margin of Pangaea. In total, 11 brachiopod species in four genera are recognized and described in detail, including two new species (Spiriferella protodraschei and Arcullina? enokiani). According to our taxonomic investigation, morphological characteristics of the ventral sulcus and dorsal fold are relatively stable within each species, in spite of considerable intraspecific variations in shell outline and macro-ornamentation. In addition, both the arrangement of pustules, as a shell surface micro-ornamentation, and the development of delthyrial coverings are shown to be significant features for inferring phylogenetic relationships and for defining species. The best-known but still questionable taxon, Spiriferella keilhavii, is here identified as an endemic species restricted to BjOrnOya and, possibly, to central East Greenland; it is phylogenetically closest to S. loveni. Following the taxonomic revision, the stratigraphical ranges of the spiriferellids within the Kapp Starostin Formation in Spitsbergen are fully refined: three species, S. protodraschei, A. polaris and Timaniella wilczeki, are confined to the lowermost VOringen Member (late Artinskian-early Kungurian), whereas S. loveni dominates the overlying members with a much longer stratigraphical range (late Kungurian-Lopingian?). This abrupt compositional change, along with comparable changes in other taxonomic groups, can be explained by a palaeoclimatic shift from cool to cold conditions between the VOringen Member and the overlying Svenskeegga member. A similar biotic transition is identified between the Hambergfjellet and Miseryfjellet formations in BjOrnOya. On the other hand, S. loveni is abundant in the Late Permian strata of central East Greenland, but there it appears to be more costate in plication compared to its counterpart from Spitsbergen. It is suggested that this alteration in shell ornamentation may represent a possible response (adaptation) to warming arising from the southward migration of the species.http://zoobank.org/urn:lsid:zoobank.org:pub:85B863D2-DB42-4835-940A-2DE852C82178
机译：本研究报告了Spiferellid Brachiopods来自Svalbard和邻近地区（俄罗斯的北极加拿大和俄罗斯亚马尔乌拉尔）的普遍岩石。共有11个属的11种Brachiopod物种被详细认可和描述，包括两个新物种（Spiriferella protodraschei和Argullina？Enokiani）。根据我们的分类调查，腹腔和背部折叠的形态特征在每种物种内相对稳定，尽管壳体轮廓和宏观装饰的相当大的内部内部变化。此外，脓疱的排列，作为壳表面微型装饰，以及延期覆盖物的发展被显示为推断系统发育关系和定义物种是显着的特征。最着名但仍然有质疑的分类斯皮菲氏菌Keilhavii，这里被识别为限于Bjornoya的地方性物种，并且可能是东部格陵兰东部的;它是最接近S. Loveni的系统源性。在分类学修正之后，斯皮特伯格的Kapp Starostin形成内的SpIriferellid的地层范围完全精制：三种物种，S。Protodraschei，A. Polaris和Timaniella Wilczeki被限制在较低的Vorionen成员（晚期春天的春天） ，而S. Loveni占主导着覆盖的成员，他们的地层范围更长（晚肯·罗比尼亚人？）。这种突然的组成变化以及其他分类组的可比变化，可以通过古希文偏移从呼吸成员和覆盖的Svenskeegga构件之间的古生物转变来解释。在Bjornoya的Hambergfjellet和Miseryfjellet形成之间鉴定了类似的生物转变。另一方面，S. Loveni在格陵兰东部的已故杂角地层丰富，但与Spitsbergen的对应物相比，它似乎在血统中似乎更耗时。有人建议，壳装饰中的这种改变可以代表从物种向南迁移而导致的可能响应（适应）.http：//zoobank.org/urn：lsid：zoobank.org：Pub：85b863d2-db42- 4835-940A-2DE852C82178

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  • 来源
    《Journal of Systematic Palaeontology》 |2019年第24期|1871-1925|共55页
  • 作者

    Lee Sangmin; Shi G. R.; Woo Jusun; Park Tae-Yoon S.; Oh Jae-Ryong; Kim Na Kyung; Nakrem Hans A.; Tazawa Jun-Ichi;

  • 作者单位

    Deakin Univ Geelong Vic Australia|Sch Life & Environm Sci Burwood Campus 221 Burwood Highway Burwood Vic 3125 Australia|Univ Wollongong Sch Earth Atmospher & Life Sci Northfields Ave Wollongong NSW 2522 Australia;

    Deakin Univ Geelong Vic Australia|Sch Life & Environm Sci Burwood Campus 221 Burwood Highway Burwood Vic 3125 Australia|Univ Wollongong Sch Earth Atmospher & Life Sci Northfields Ave Wollongong NSW 2522 Australia;

    Seoul Natl Univ Sch Earth & Environm Sci 1 Gwanak Ro Seoul 08826 South Korea;

    Korea Polar Res Inst Div Polar Earth Syst Sci Incheon 21990 South Korea;

    Korea Polar Res Inst Div Polar Earth Syst Sci Incheon 21990 South Korea|Univ Sci & Technol Polar Sci Daejeon 34113 South Korea;

    Andong Natl Univ Dept Earth & Environm Sci Andong 36729 South Korea;

    Univ Oslo Nat Hist Museum POB 1172 Blindern N-0318 Oslo Norway;

    Hamaura Cho 1-260-1 Chuo Ku Niigata 9518151 Japan;

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  • 正文语种 eng
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  • 关键词

    Spiriferella; Arcullina; Edrimatus; Timaniella; Kapp Starostin Formation; Spitsbergen;

    机译：Spyriririrelage;Arkoclina;资源;Hidegella？Copp Terone Formon;Spitsvin;

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