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First description of the ichnofauna from the type locality of the Famennian stage (Late Devonian) of S Belgium
Ichnos ( IF 0.8 ) Pub Date : 2020-05-22 , DOI: 10.1080/10420940.2020.1763336
Cassian Morelle 1 , Julien Denayer 1
Affiliation  

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.

中文翻译:

对比利时南部法门阶(晚泥盆世)典型地区的鱼类群落的首次描述

摘要 这里首次对法门纪类型产地的化石化石进行描述和描绘。比利时南部的硅质碎屑潮上冲积物到近端潮下带沉积物产生了由砂砾岩ispp组成的多样化鱼类群落。(两种形态类型)、Condrites intricatus、Diplocraterion isp.、Dolopichnus gulosus、Gordia marina、Helminthopsis isp.、Lockeia cordata、L. siliquaria、Palaeophycus tubeis、P. sulcatus、Planolites isp.、Protovirgularia cobliterata rugosa, P. isp. 和 Psammichnites implexus。总的来说,这 16 种鱼种和 11 种鱼属形成了 Cruziana 鱼相的典型组合,其中古藻类占主导地位。然而,比利时法门阶显示出与各种环境相对应的大范围岩相,其中识别出不同的地层化石组合。砂粒石isp。从 sabkha 型原生白云岩中收集到的白云岩表明,早在晚泥盆世,砂岩示踪剂就可能在高盐度环境中定居。Crossochorda marioni Dewalque 的类型材料,1881 年被修订并归因于 Protovirgularia Obterata 和 P. cf. 鲁戈萨。
更新日期:2020-05-22
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