The importance of plankton and nekton distributions in Ordovician palaeogeographical reconstructions
Servais, T; Blieck, A; Caridroit, M; Chen, X (陈旭); Paris, F; Tortello, MF
2005
发表期刊BULLETIN DE LA SOCIETE GEOLOGIQUE DE FRANCE
ISSN0037-9409
卷号176期号:6页码:531-543
摘要

Trilobites and brachiopods are the two main fossil groups that allowed construction of the first palaeogeographical maps for the early Palaeozoic. Together with the bivalves and ostracodes, the benthic elements of these fossil groups have proved to be of great palaeobiogeographical importance. For this reason, these groups are usually considered to be 'better' fossils for inferring Ordovician palaeogeography. The present study indicates that planktic and nektic fossil groups should not be neglected in such palaeobiogeographical studies. The plotting on a palaeogeographical reconstruction for the Arenig (Lower Ordovician, -480 Ma) of some planktic (acritarchs, chitinozoans) and nektic (vertebrates, pelagic trilobites) fossil groups indicates that their distribution appears in part surprisingly similar to that of the benthic trilobite faunas that are considered to display the greatest provincialism. For example, the distribution of the 'peri-Gondwanan' acritarch province including Arbusculidium. filamentosum, Coryphidium and Striatotheca, and the distribution of the Ereniochitina brevis chitinozoan assemblage are almost identical to the palaeogeographical distribution of the Calymenacean-Dalmanitacean trilobite fauna. A review of the different planktic and nektic fossil groups also indicates that it is very important to carefully select 'good' palaeogeographical indicators, in most cases from a large number of taxa. It appears that almost all fossil groups include some 'good' palaeobiogeographical 'markers'. Therefore it is important to search for 'better' taxa within each fossil group, instead of looking only for the 'better' fossil groups as a whole.

关键词Acritarchs Chitinozoans Graptolites Trilobites Radiolarians Vertebrates Ordovician Palaeobiogeography
语种英语
关键词[WOS]North-atlantic Region ; Middle Ordovician ; Paleozoic Paleogeography ; Acritarch Distribution ; Iapetus Ocean ; Paleobiogeography ; Graptolites ; Trilobites ; Evolution ; Geography
WOS研究方向Geology
WOS类目Geosciences, Multidisciplinary
WOS记录号WOS:000235577300005
出版者SOC GEOL FRANCE
文献类型期刊论文
条目标识符http://ir.nigpas.ac.cn/handle/332004/716
专题中国科学院南京地质古生物研究所
其他
通讯作者Servais, T
作者单位1.Univ Lille 1, CNRS, UMR 8014, Lab Paleontol & Paleogeog Paleozo, F-59655 Villeneuve Dascq, France
2.Univ Erlangen Nurnberg, Inst Palaontol, D-91054 Erlangen, Germany
3.Acad Sinica, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China
4.Univ Rennes 1, CNRS, UMR 6118, F-35042 Rennes, France
5.Museo La Plata, Dept Paleontol Invertebrados, RA-1900 La Plata, Argentina
推荐引用方式
GB/T 7714
Servais, T,Blieck, A,Caridroit, M,et al. The importance of plankton and nekton distributions in Ordovician palaeogeographical reconstructions[J]. BULLETIN DE LA SOCIETE GEOLOGIQUE DE FRANCE,2005,176(6):531-543.
APA Servais, T,Blieck, A,Caridroit, M,Chen, X ,Paris, F,&Tortello, MF.(2005).The importance of plankton and nekton distributions in Ordovician palaeogeographical reconstructions.BULLETIN DE LA SOCIETE GEOLOGIQUE DE FRANCE,176(6),531-543.
MLA Servais, T,et al."The importance of plankton and nekton distributions in Ordovician palaeogeographical reconstructions".BULLETIN DE LA SOCIETE GEOLOGIQUE DE FRANCE 176.6(2005):531-543.
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