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题名: Discovery of Pseudofrenelopsis from the Lower Cretaceous of Liupanshan Basin and its paleoclimatic significance
作者: Du, BX; Zhang, MZ; Dai, S; Sun, BN(孙柏年)
收录类别: SCIE ; BIOSIS
出版日期: 2014-03
刊名: CRETACEOUS RESEARCH
卷号: 48, 页码:193-204
出版者: ELSEVIER
出版地: LONDON
英文摘要: The Lower Cretaceous strata are well developed and widely distributed in the Liupanshan Basin, Ningxia Hui Autonomous Region, NW China. A variety of spores and pollen have been discovered, whereas few megafossil plants have been reported. In the present study, a new cheirolepidiaceous species, Pseudofrenelopsis liupanshanensis, is described from the Lower Cretaceous Naijiahe Formation of the Liupanshan Basin based on the leaf morphological and cuticular features. The specimens are characterized by cylindrical leafy shoots with spirally and loosely arranged triangular leaves. The cuticles are strongly cutinized with very developed papillae and the absence of hairs or trichomes on the epidermis of the leaves and internodes. The stomata are longitudinally arranged in uniseriate files and irregularly oriented and commonly surrounded by 5-6 subsidiary cells. The present species is morphologically and micro-morphologically distinct from other Pseudofrenelopsis species. A seasonal and arid or semi-arid climate is represented in the Liupanshan Basin during the late Early Cretaceous, which is indicated by fossil plant taxa and the leafy shoot morphological and epidermal structures of the present Pseudofrenelopsis. Furthermore, the dominant Classopollis, occurrence of gypsum layers and evidence of the carbon and oxygen isotopes also support these findings. Crown Copyright (C) 2014 Published by Elsevier Ltd. All rights reserved.
关键词: Pseudofrenelopsis ; Liupanshan Basin ; Lower Cretaceous ; Megafossil plant ; Palaeoclimate
作者部门: [Du, Baoxia ; Sun, Bainian] Lanzhou Univ, Key Lab Mineral Resources Western China Gansu Pro, Lanzhou 730000, Peoples R China ; [Du, Baoxia ; Sun, Bainian] Lanzhou Univ, Sch Earth Sci, Lanzhou 730000, Peoples R China ; [Zhang, Mingzhen ; Dai, Shuang] Lanzhou Univ, Collaborat Innovat Ctr Arid Environm & Climat, MOE Key Lab Western Chinas Environm Syst, Lanzhou 73000, Peoples R China
通讯作者: Zhang, MZ (reprint author), Lanzhou Univ, Collaborat Innovat Ctr Arid Environm & Climat, MOE Key Lab Western Chinas Environm Syst, Lanzhou 73000, Peoples R China.
学科分类: Geology; Paleontology
文章类型: Article
所属项目编号: National Basic Research Program of China (973 Program) [2012CB822003] ; Specialized Research Fund for the Doctoral Program of Higher Education [20120211110022] ; National Natural Science Foundation of China [40972025, 40721061, 40571017] ; Fundamental Research Funds for the Central Universities [Lzujbky-2013-247]
所属项目名称: 国家自然科学基金项目 ; 国家重点基础研究发展计划以及国家重大科学研究计划(973计划) ; 高等学校博士学科点专项科研基金 ; 中央高校基本科研业务费专项资金
项目资助者: NSFC ; MOST ; MOE ; LZU
语种: 英语
DOI: 10.1016/j.cretres.2013.12.003
ISSN号: 0195-6671
WOS记录号: WOS:000334009700014
BIOSIS记录号: BIOSIS:PREV201400381761
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内容类型: 期刊论文
URI标识: http://ir.lzu.edu.cn/handle/262010/120648
Appears in Collections:地质科学与矿产资源学院_期刊论文

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Recommended Citation:
Du, BX,Zhang, MZ,Dai, S,et al. Discovery of Pseudofrenelopsis from the Lower Cretaceous of Liupanshan Basin and its paleoclimatic significance[J]. CRETACEOUS RESEARCH,2014,48:193-204.
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