Middle Triassic (Anisian) diversified bivalves: depositional environments and bivalve assemblages in the Leidapo Member of the Qingyan Formation, southern China
Komatsu, T; Chen, JH (陈金华); Cao, MZ (曹美珍); Stiller, F; Naruse, H
2004-06-10
发表期刊PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN0031-0182
卷号208期号:3-4页码:207-223
摘要

The Middle Triassic (Anisian) Leidapo Member of the Qingyan Formation, which crops out in southwestern China, consists of basin-floor and slope deposits with abundant benthic fossils and records two transgressions and one regression. The well preserved bivalves are grouped into four assemblages. The allochthonous Cassianella-Elegantinia and Protostrea-Cassianella assemblages as well as the autochthonous Palaeonucula assemblage are found in slope deposits. The allochthonous assemblages exhibit several modes of occurrence in sediment gravity-flow deposits. The parautochthonous Posidonia assemblage is preserved in slope and basin deposits. The genus-level compositions of these bivalve assemblages are similar to those from the Early Carman of Tethyan Europe. It is probable that a significant diversification of bivalves took place in the Anisian. (C) 2004 Elsevier B.V All rights reserved.

关键词Bivalve China Depositional Environment Diversification Gravity-flow Deposits Triassic
DOI10.1016/j.palaeo.2004.03.005
语种英语
关键词[WOS]Guizhou Province ; Carbonate Platform ; Gastropoda ; Slope ; Field ; Bank
WOS研究方向Physical Geography ; Geology ; Paleontology
WOS类目Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS记录号WOS:000222192400003
出版者ELSEVIER SCIENCE BV
文献类型期刊论文
条目标识符http://ir.nigpas.ac.cn/handle/332004/1038
专题中国科学院南京地质古生物研究所
通讯作者Komatsu, T
作者单位1.Kumamoto Univ, Fac Sci, Dept Earth Sci, Kumamoto 8608555, Japan
2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China
3.Univ Munster, Inst Geol & Palaeontol, D-48149 Munster, Germany
4.Kyoto Univ, Grad Sch Sci, Dept Earth & Planetary Sci, Kyoto 606, Japan
推荐引用方式
GB/T 7714
Komatsu, T,Chen, JH ,Cao, MZ ,et al. Middle Triassic (Anisian) diversified bivalves: depositional environments and bivalve assemblages in the Leidapo Member of the Qingyan Formation, southern China[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2004,208(3-4):207-223.
APA Komatsu, T,Chen, JH ,Cao, MZ ,Stiller, F,&Naruse, H.(2004).Middle Triassic (Anisian) diversified bivalves: depositional environments and bivalve assemblages in the Leidapo Member of the Qingyan Formation, southern China.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,208(3-4),207-223.
MLA Komatsu, T,et al."Middle Triassic (Anisian) diversified bivalves: depositional environments and bivalve assemblages in the Leidapo Member of the Qingyan Formation, southern China".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 208.3-4(2004):207-223.
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