法国布列塔尼Crozon半岛中奥陶世mitrate Mitrocystella(棘皮目，茎尖虫目)首次报道

IF 0.9 4区地球科学 Q4 GEOSCIENCES, MULTIDISCIPLINARY

Estonian Journal of Earth Sciences Pub Date : 2023-01-01 DOI:10.3176/earth.2023.57

B. Lefebvre, Maxime Renaud, Denis Bailliot, Marie-Noëlle Bailliot, Sophie Coat, C. Gaudu†, M. Vidal

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引用次数: 0

摘要

中奥陶世Mitrocystella incipiens是高纬度地中海省分布最广的针虫目之一，在法国的Armorican Massif、葡萄牙和西班牙的伊比利亚半岛以及捷克共和国的布拉格盆地均有分布，均局限于Darriwilian晚期(Hustedograptus teretiusculus带)。该分类群在Crozon半岛(法国布列塔尼西部)corrsamjou段(Postolonnec组)的描述，不仅扩大了其在armoramerican地块内的空间分布，而且将其地层范围扩大到中darriwilian (Didymograptus artus带)。新材料的显著保存和相关的沉积学证据都表明风暴沉积迅速掩埋了它们。

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First report of the mitrate Mitrocystella (Echinodermata, Stylophora) in the Middle Ordovician of the Crozon Peninsula, Brittany (France)

The mid-Ordovician mitrocystitid mitrate Mitrocystella incipiens was one of the most widespread stylophorans in the high latitude Mediterranean Province, with occurrences in the Armorican Massif ( France), the Iberian Peninsula ( Portugal and Spain) and the Prague Basin ( Czech Republic), all restricted so far to the late Darriwilian ( Hustedograptus teretiusculus Zone). The description of this taxon in the Corréjou Member ( Postolonnec Formation) of the Crozon Peninsula (western Brittany, France) not only extends its spatial distribution within the Armorican Massif, but also its stratigraphic range into the mid-Darriwilian ( Didymograptus artus Zone). The remarkable preser vation of the new material and associated sedimentological evidence both suggest rapid burial by storm deposits.

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来源期刊

Estonian Journal of Earth Sciences 地学-地球科学综合

CiteScore

1.50

自引率

9.10%

发文量

审稿时长

>12 weeks

期刊介绍： The Estonian Journal of Earth Sciences is an international scientific open access journal published by the Estonian Academy of Sciences in collaboration with the Tallinn University of Technology, the University of Tartu, the Estonian University of Life Sciences and the Talllinn University. The journal publishes primary research and review papers in the English language. All articles are provided with short Estonian summaries. All papers to be published in the journal are peer reviewed internationally. The journal is open for publications in all fields of Earth sciences, including besides different geological sensu lato disciplines, also geography and oceanography having certain connection with our part of the world, North Europe and the Baltic area in particular.