Rhynchonelliform brachiopods and trilobites of the ‘upper dark interval’ in the koněprusy area (Devonian, Eifelian, Kačák Event; the Czech Republic)

Q3 Earth and Planetary Sciences

Fossil Imprint Pub Date : 2019-08-01 DOI:10.2478/if-2019-0008

M. Mergl, P. Budil

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引用次数: 9

Abstract

Abstract The dark pelbiodetrital limestone beds of the ‘upper dark interval’ in the Koněprusy area, Central Bohemia, the Czech Republic, the assumed manifestation of the Kačák Event in this area, yielded a moderately diverse faunule of rhynchonelliform brachiopods and trilobites. In total, 15 species have been recognized (13 brachiopods and 2 trilobites), but the majority of them are only tentatively determined to generic level due to fragmentation, rarity or poor preservation. Brachiopod genera Leptaenopyxis, Protodouvillina, Douvillinella, Holynetes, Poloniproductus, Iridistrophia, Mystrophora, Pentamerella, Quasidavidsonia, Carinatina, Mimatrypa, Leptathyris, Eoreticularia and a single trilobite Astycoryphe were determined. The mode of preservation indicates transport of skeletal bioclasts from shallower parts of the basin and their fragmentation in debris flows together with fragments of terrestrial plants, crinoid detritus and numerous pelagic fossils, especially the dacryoconarid Nowakia ex gr. otomari. Associated conodonts (as well as trilobites) indicate a late Eifelian age for the fauna (Polygnathus ensensis Zone).

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孔普鲁西地区“上部黑暗间隔”的Rhynchonelliform腕足类和三叶虫（泥盆纪、艾菲尔阶、Kačák事件；捷克共和国）

摘要捷克共和国波希米亚中部KonŞprussy地区“上部黑暗区间”的深色生物碎屑石灰岩层，是该地区Kačák事件的假定表现，产生了一个由钩针形腕足类和三叶虫组成的适度多样化的区群。共有15个物种被确认（13种腕足类和2种三叶虫），但由于破碎化、稀有或保存不善，大多数物种仅暂定为属水平。确定了腕足类属Leptiaenopyxis、Protodouvillina、Douvillinella、Holynetes、Poloniproductus、Iristrophia、Mystrophora、Pentamerela、Quasidavidsonia、Carinatina、Mimatrypa、Leptithyris、Eometicularia和一个三叶虫Astycoryphe。保存模式表明，来自盆地较浅地区的骨骼生物碎屑的运输及其在泥石流中的碎片，以及陆生植物碎片、海百合碎屑和许多远洋化石，特别是达克罗珊瑚和Nowakia ex gr.otomari。相关的牙形石（以及三叶虫）表明动物群的时代为艾菲尔纪晚期（Polygnathus ensensis区）。

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来源期刊

Fossil Imprint Earth and Planetary Sciences-Stratigraphy

CiteScore

1.70

自引率

0.00%

发文量

期刊介绍： Fossil Imprint (formerly Acta Musei Nationalis Pragae, Series B – Historia Naturalis) is an international, open access journal, publishing original papers and reviews of any length from all areas of paleontology and related disciplines, such as palaeoanthropology, biostratigraphy, palynology, and archaeobotany/zoology. All taxonomic groups are treated, including plants, invertebrates, vertebrates, microfossils, and ichnofossils, with a special emphasis on terrestrial and post-Palaeozoic marine biota. We encourage the publication of international meetings as well as special thematic issues. The aim of the journal is to spread the scientific knowledge with no restrictions, and to allow access to it to any interested person. Each article includes information about the date of receiving, accepting and issue.