期刊
ACTA GEOLOGICA POLONICA
卷 63, 期 4, 页码 555-610出版社
POLSKA AKAD NAUK, POLISH ACAD SCIENCES, UNIV WARSAW, GEOLOGY DEPT
DOI: 10.2478/agp-2013-0025
关键词
Late Cretaceous; Danubian Cretaceous Group; Macro-invertebrates; Facies Silica diagenesis; Stratigraphy
类别
资金
- Deutsche Forschungsgemeinschaft (DFG) [SCHN 1264/1-1, SCHN 1264/2-1]
- Ministry of Culture of the Czech Republic [DKRVO 2013/04]
- National Museum [00023272]
With approximately 100 species, the invertebrate macrofauna of the Neuburg Kieselerde Member of the Wellheim Formation (Bavaria, southern Germany) is probably the most diverse fossil assemblage of the Danubian Cretaceous Group. Occurring as erosional relicts in post-depositional kart depressions, both the Cretaceous sediments and fossils have been silicified during diagenesis. The Neuburg Kieselerde Member, safely dated as Early Cenomanian to Early Turonian based on inoceramid bivalve biostratigraphy and sequence stratigraphy preserves a predominantly soft-bottom community, which, however, is biased due to near-complete early diagenetic loss of aragonitic shells. The community is dominated by epifaunal and semi-infaunal bivalves as well as sponges that settled on various (bio-) clasts, and may widely be split into an early bivalve-echinoid assemblage and a succeeding sponge-brachiopod assemblage. in addition to these groups we document ichnofauna, polychaete tubes, nautilids and bryozoans. The fauna provides evidence of a shallow to moderately-deep, calm, fully marine environment, which is intemreted as a large-scale mbayftient herein. The fauna of the Neuburg Kieselerde Member is regarded as an important archive of lower Upper Cretaceous sea-life in the surroundings of the Mid-European Island,
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据