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Early Ordovician sponge-bearing microbialites from Peninsular Malaysia: The initial rise of metazoans in reefs

Abstract:
Abstract Introduction Early Ordovician (Floian) lithistid sponge-Calathium-microbial reefs were discovered in the lower part of the Lower Setul Limestone in Perlis, northwestern Malaysia Peninsula. Results With a thickness of more than 30\xa0m, massive microbial boundstone is surrounded by thick-bedded oncoid-intraclast rudstone/grainstone. The reefs were constructed of cylindrical stromatolites and maze-like thrombolites, accompanying a small proportion of lithistid sponges (anthaspidellids) and hypercalcified sponges (Calathium). The earliest Floian age is based on a conodont fauna including the zonal index species Serratognathus bilobatus. Conclusions The microbialites might have grown in shallow subtidal environments, indicated by the high aspect ratio of the stromatolites and the associated coarse-grained sediments. The initial growth of stromatolites was sufficient to inhibit hydrodynamic removal of sediment and to create microhabitats in which environmental conditions were favourable for later accretion of thrombolites and colonization by anthaspidellids and calathids. These sponge-bearing microbialites represent the initial rise of metazoans in reefs at the dawn of the Ordovician Radiation, providing crucial information for understanding the transition from microbial- to metazoan-dominant reefs during this unique interval.
Author Listing: Qi-Jian Li;Masatoshi Sone;Oliver Lehnert;Lin Na
Volume: 28
Pages: 80-95
DOI: 10.1016/J.PALWOR.2018.08.005
Language: English
Journal: Palaeoworld

Palaeoworld

PALAEOWORLD

影响因子:1.7
是否综述期刊:否
是否OA:否
是否预警:不在预警名单内
发行时间:-
ISSN:1871-174X
发刊频率:-
收录数据库:SCIE/Scopus收录
出版国家/地区:NETHERLANDS
出版社:Elsevier

期刊介绍

Palaeoworld is a peer-reviewed quarterly journal dedicated to the study of past life and its environment. We encourage submission of original manuscripts on all aspects of palaeontology and stratigraphy, comparisons of regional and global data in time and space, and results generated by interdisciplinary investigations in related fields. Some issues will be devoted entirely to a special theme whereas others will be composed of contributed articles. Palaeoworld is dedicated to serving a broad spectrum of geoscientists and palaeobiologists as well as serving as a resource for students in fields as diverse as palaeobiology, evolutionary biology, taxonomy and phylogeny, geobiology, historical geology, and palaeoenvironment.Palaeoworld publishes original articles in the following areas:•Phylogeny and taxonomic studies of all fossil groups•Biostratigraphy, chemostratigraphy, chronostratigraphy•Palaeoecology, palaeoenvironment and global changes throughout Earth history•Tempo and mode of biological evolution•Biological events in Earth history (e.g., extinctions, radiations)•Ecosystem evolution•Geobiology and molecular palaeobiology•Palaeontological and stratigraphic methods•Interdisciplinary studies focusing on fossils and strata

《古世界》是一份同行评审的季刊,致力于研究过去的生命及其环境。我们鼓励提交有关古生物学和地层学各个方面的原始手稿,在时间和空间上比较区域和全球数据,以及相关领域跨学科研究产生的结果。有些期刊将完全专注于一个特殊的主题,而其他期刊将由投稿文章组成。Palaeoworld致力于为广大的地球科学家和古生物学家提供服务,同时也是古生物学、进化生物学、分类学和系统发育学、地球生物学、历史地质学和古环境学等不同领域的学生提供资源。Palaeoworld在以下领域发表原创文章:·所有化石群的系统发育和分类学研究·生物地层学、化学地层学、年代地层学·古生态学、古环境和整个地球历史的全球变化·生物进化的克里思和模式·地球历史中的生物事件(例如,灭绝、辐射)·生态系统演化·地球生物学和分子古生物学·古生物学和地层学方法·以化石和地层为重点的跨学科研究

年发文量 117
国人发稿量 81
国人发文占比 69.09%
自引率 5.9%
平均录取率 -
平均审稿周期 -
版面费 US$3000
偏重研究方向 PALEONTOLOGY-
期刊官网 http://www.journals.elsevier.com/palaeoworld/
投稿链接 https://www.editorialmanager.com/PALWOR

质量指标占比

研究类文章占比 OA被引用占比 撤稿占比 出版后修正文章占比
98.29% 5.70% 0.00% 0.00%

相关指数

影响因子
影响因子
年发文量
自引率
Cite Score

预警情况

时间 预警情况
2025年03月发布的2025版 不在预警名单中
2024年02月发布的2024版 不在预警名单中
2023年01月发布的2023版 不在预警名单中
2021年12月发布的2021版 不在预警名单中
2020年12月发布的2020版 不在预警名单中

JCR分区 WOS分区等级:Q2区

版本 按学科 分区
WOS期刊SCI分区
(2021-2022年最新版)
PALEONTOLOGY Q1

中科院分区

版本 大类学科 小类学科 Top期刊 综述期刊
地球科学
3区
PALEONTOLOGY
古生物学
2区
2021年12月
基础版
地学
4区
PALEONTOLOGY
古生物学
3区
2021年12月
升级版
地球科学
3区
PALEONTOLOGY
古生物学
3区
2020年12月
旧的升级版
地球科学
4区
PALEONTOLOGY
古生物学
4区
2022年12月
最新升级版
地球科学
3区
PALEONTOLOGY
古生物学
3区