Griesbachian and Dienerian (Early Triassic) ammonoid faunas from Northwestern Guangxi and Southern Guizhou (South China)

被引：41
作者：
Bruehwiler, Thomas [1 ]
Brayard, Arnaud [2 ,3 ]
Bucher, Hugo [1 ,4 ]
Guodun, Kuang [5 ]
机构：
[1] Univ Zurich, Palaontol Inst & Museum, CH-8006 Zurich, Switzerland
[2] Univ Toulouse, IRD, Observ Midi Pyrenees, LMTG,UMR CNRS 5563, F-31400 Toulouse, France
[3] Univ Bourgogne, CNRS Biogeosci, F-21000 Dijon, France
[4] ETH, Dept Erdwissensch, CH-8092 Zurich, Switzerland
[5] Guangxi Bur Geol & Mineral Resources, Nanning 530023, Peoples R China
来源：
PALAEONTOLOGY | 2008年 / 51卷
关键词：
Ammonoidea; Early Triassic; South China; Luolou Fm; Daye Fm; biostratigraphy;
D O I：
10.1111/j.1475-4983.2008.00796.x
中图分类号：
Q91 [古生物学];
学科分类号：
0709 ; 070903 ;
摘要：
Intensive sampling of the Luolou (northwestern Guangxi) and the Daye (southern Guizhou) Formations in South China leads to the recognition of a regional Griesbachian and Dienerian ammonoid succession for this key palaeobiogeographical area. The new biostratigraphical sequence comprises the upper Griesbachian 'Ophiceras beds' and the lower Dienerian 'Proptychites candidus beds', which are separated from the uppermost Dienerian 'Clypites beds' by an unfossiliferous interval. These faunas contain some taxa with wide geographic distribution (e.g. Ambites, Pleurambites, Pleurogyronites, Proptychites candidus), thus facilitating correlation with faunal successions from other regions (i.e. British Columbia, Canadian Arctic, Himalayas and South Primorye). Two new genera (Jieshaniceras and Shangganites) and three new species (Anotoceras subtabulatus, Pleurambites radiatus and Shangganites shangganense) are described.
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收藏
页码：1151 / 1180
页数：30
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