First description of the ichnofauna from the type locality of the Famennian stage (Late Devonian) of S Belgium

IF 0.8 4区地球科学 Q4 PALEONTOLOGY

Ichnos-An International Journal for Plant and Animal Traces Pub Date : 2020-05-22 DOI:10.1080/10420940.2020.1763336

Cassian Morelle, J. Denayer

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引用次数: 3

Abstract

Abstract Ichnofossils from the type locality of the Famennian are here described and figured for the first time. The siliciclastic supratidal alluvial to proximal subtidal deposits of S Belgium yield a diverse ichnofauna composed of Arenicolites ispp. (two morphotypes), Chondrites intricatus, Diplocraterion isp., Dolopichnus gulosus, Gordia marina, Helminthopsis isp., Lockeia cordata, L. siliquaria, Palaeophycus tubularis, P. sulcatus, Planolites isp., Protovirgularia obliterata, P. cf. rugosa, P. isp. and Psammichnites implexus. As a whole, these 16 ichnospecies and 11 ichnogenera form the typical assemblage of the Cruziana ichnofacies where Palaeophycus is largely dominant. However, the Belgian Famennian displays a large range of lithofacies corresponding to various environments in which distinct ichnofossil assemblages are identified. Arenicolites isp. collected from sabkha-type primary dolomite indicates the probable colonisation of hypersaline environment by Arenicolites tracemakers as early as the Late Devonian. The type material of Crossochorda marioni Dewalque, 1881 is revised and attributed to Protovirgularia obliterata and P. cf. rugosa.

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比利时南部法门期(晚泥盆世)模式地区鱼动物群的首次描述

本文首次对法门系模式地的鱼化石进行了描述和图解。比利时南部潮上冲积到近潮下沉积的硅质碎屑形成了由砂粒石组成的多样化的鱼动物群。(两种形态)，复杂球粒陨石，双角化。，海蛾，海蛾，海蛾。芦笋，芦笋，芦笋，管状古ophycus，芦笋，Planolites。，隐型原virgularia obliterata, P. cf. rugosa, P. isp。赛米念的隐孔。总的来说，这16种鱼属和11种鱼属构成了典型的古藓属鱼相组合，其中古藓属占主导地位。而比利时法门纪则表现出与不同环境相对应的大范围岩相，并识别出不同的鱼化石组合。似海蚯蚓迹isp。从sabkhah型原生白云岩中收集的数据表明，早在晚泥盆世，砂粒石示踪器可能在高盐环境中定殖。对1881年的marioni Crossochorda Dewalque的类型材料进行了修订，并将其归属于Protovirgularia obliterata和p.c.f rugosa。

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来源期刊

Ichnos-An International Journal for Plant and Animal Traces PALEONTOLOGY-

CiteScore

2.50

自引率

12.50%

发文量

审稿时长

>12 weeks

期刊介绍： The foremost aim of Ichnos is to promote excellence in ichnologic research. Primary emphases center upon the ethologic and ecologic significance of tracemaking organisms; organism-substrate interrelationships; and the role of biogenic processes in environmental reconstruction, sediment dynamics, sequence or event stratigraphy, biogeochemistry, and sedimentary diagenesis. Each contribution rests upon a firm taxonomic foundation, although papers dealing solely with systematics and nomenclature may have less priority than those dealing with conceptual and interpretive aspects of ichnology. Contributions from biologists and geologists are equally welcome. The format for Ichnos is designed to accommodate several types of manuscripts, including Research Articles (comprehensive articles dealing with original, fundamental research in ichnology), and Short Communications (short, succinct papers treating certain aspects of the history of ichnology, book reviews, news and notes, or invited comments dealing with current or contentious issues). The large page size and two-column format lend flexibility to the design of tables and illustrations. Thorough but timely reviews and rapid publication of manuscripts are integral parts of the process.