globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2016.03.023
论文题名:
Conodonts from the Lower Ordovician of Morocco — Contributions to age and faunal diversity of the Fezouata Lagerstätte and peri-Gondwana biogeography
作者: Lehnert O.; Nowak H.; Sarmiento G.N.; Gutiérrez-Marco J.C.; Akodad M.; Servais T.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2016
卷: 460
起始页码: 50
结束页码: 61
语种: 英语
英文关键词: Conodonts ; Fezouata Formation ; Gondwana ; Lower Ordovician ; Morocco
英文摘要: This study documents conodont faunas of the Fezouata Formation, recovered from the AZ-1 borehole at Adrar Zouggar Mountain and from outcrops near Zagora in south-eastern Morocco. The Fezouata Formation was deposited on the peri-Gondwanan shelf near the South Pole during Early Ordovician times. It is composed of mostly fine-grained siliciclastics and is well known for including beds displaying the exceptionally well preserved Fezouata Biota. Studies on different microfossil groups, including conodonts, increase the diversity recorded from this exceptional ecosystem. Strongly recrystallised conodont elements were extracted from the fine-grained siliciclastic sediments by diluted hydrofluoric acid (HF), which was used for isolating palynomorphs. The material is dominated by simple cone taxa such as Parapaltodus, Semiacontiodus, Scolopodus, Scalpellodus, Drepanoistodus, Acodus, Paltodus, and Cornuodus. In addition, a few elements of early Prioniodus are recovered. This composition allows an estimation of uppermost Tremadocian through basal Floian ages for the fragmented elements because characteristic elements of younger assemblages, including ramiform (e.g., Oepikodus, Baltoniodus) or coniform (e.g., Tropodus, Protopanderodus) apparatuses, have not been recorded. The association is devoid of any warm/tropical and temperate water taxa and is typical for faunas in the cold water environments of the subpolar siliciclastic shelves during Early Ordovician times. The new term of ‘subpolar faunal domain’ is proposed for these conodont associations of low diversity that occur at high southern latitudes during the Early Ordovician. Ecological implications and palaeobiogeographical relationships of the conodont faunas are discussed. © 2016 Elsevier B.V.
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/68261
Appears in Collections:过去全球变化的重建

Files in This Item:

There are no files associated with this item.


作者单位: GeoZentrum Nordbayern, Lithosphere Dynamics, Friedrich-Alexander University of Erlangen-Nürnberg, Schloßgarten 5, Erlangen, Germany; Department of Geology, Lund University, Sölvegatan 12, Lund, Sweden; Tallinn University of Technology, Institute of Geology, Ehitajate tee 5, Tallinn, Estonia; CNRS-UMR 8198 Evo-Eco-Paléo, Université Lille — Sciences et Technologies, Bâtiment SN5, Avenue Paul Langevin, Villeneuve d'Ascq Cedex, France; Departamento de Paleontología, Facultad Ciencias Geológicas, UCM, José Antonio Novais 12, Madrid, Spain; Instituto de Geociencias (CSIC, UCM), José Antonio Novais 12, Madrid, Spain; Faculté Pluridisciplinaire de Nador, Labo OLMAN-RL, FPN 300, Selouane, Nador, Morocco

Recommended Citation:
Lehnert O.,Nowak H.,Sarmiento G.N.,et al. Conodonts from the Lower Ordovician of Morocco — Contributions to age and faunal diversity of the Fezouata Lagerstätte and peri-Gondwana biogeography[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2016-01-01,460
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Lehnert O.]'s Articles
[Nowak H.]'s Articles
[Sarmiento G.N.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Lehnert O.]'s Articles
[Nowak H.]'s Articles
[Sarmiento G.N.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Lehnert O.]‘s Articles
[Nowak H.]‘s Articles
[Sarmiento G.N.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.