Pseudofrenelopsis fossils from Cretaceous gypsum beds in Guixi, Jiangxi Province, China and their geological significance
Sun, Bainian1,2,3; Dai, Jing1,2; Wang, Yongdong (王永栋)3; Jia, Hui1,2; Yan, Defei1,2,3; Jiang, Zikun3
2011-03-01
发表期刊ISLAND ARC
ISSN1038-4871
卷号20期号:1页码:43-56
摘要

Compressed fossil plants were found in the gypsum beds of the Zhoujiadian Formation in Guixi City, Jiangxi Province, China. The cuticular features of two species of Pseudofrenelopsis (Cheirolepidiaceae) were examined by scanning electron microscopy in this study: Pseudofrenelopsis papillosa Cao ex Zhou and Pseudofrenelopsis guixiensis Bainian Sun et Dai, sp. nov. A detailed analysis of the internode epidermis, and the adaxial and abaxial leaf cuticles of the two species, was performed, extending our knowledge of the morphological and anatomical characteristics of the extinct Pseudofrenelopsis. A new species, Pseudofrenelopsis guixiensis sp. nov., is proposed based upon comparison of its cuticular features. It differs from previously published species in that it has hairs on the abaxial surfaces of its leaves, sometimes shares subsidiary cells on the surfaces of internodes, lacks a hypodermis, and has no papillae on its epidermal cells. Because the distribution of fossil Pseudofrenelopsis is restricted to the Lower Cretaceous, the Early Cretaceous age of the Zhoujiadian Formation is affirmed. The fossils of Pseudofrenelopsis show obvious xeromorphic characteristics, such as apparent thickening of the cuticles, subsidiary cells with obvious papillae, and anticlinal walls with strong cutinization, and they are found associated with gypsum beds and close to red beds. All of these features indicate an arid climate.

关键词China Early Cretaceous Gypsum Jiangxi Province Pseudofrenelopsis
DOI10.1111/j.1440-1738.2010.00719.x
语种英语
关键词[WOS]English Wealden ; Cheirolepidiaceae ; Conifer ; Leaf ; Paleoecology ; Dalatzensis ; Cuticle ; Spain ; Texas
资助项目National Basic Research Program of China[2006CB701401] ; National Natural Science Foundation of China[40772012] ; National Natural Science Foundation of China[40802008] ; Foundation of the State Key Laboratory of Paleobiology and Stratigraphy, Nanjing Institute of Geology and Paleontology, Chinese Academy of Sciences[063101] ; Foundation of the State Key Laboratory of Paleobiology and Stratigraphy, Nanjing Institute of Geology and Paleontology, Chinese Academy of Sciences[093110]
WOS研究方向Geology
WOS类目Geosciences, Multidisciplinary
WOS记录号WOS:000287744400006
项目资助者National Basic Research Program of China ; National Natural Science Foundation of China ; Foundation of the State Key Laboratory of Paleobiology and Stratigraphy, Nanjing Institute of Geology and Paleontology, Chinese Academy of Sciences
出版者WILEY-BLACKWELL
文献类型期刊论文
条目标识符http://ir.nigpas.ac.cn/handle/332004/502
专题中国科学院南京地质古生物研究所
其他
通讯作者Sun, Bainian
作者单位1.Lanzhou Univ, Key Lab Western Chinas Environm Syst, Minist Educ, Lanzhou 730000, Peoples R China
2.Lanzhou Univ, Coll Earth & Environm Sci, Lanzhou 730000, Peoples R China
3.Chinese Acad Sci, State Key Lab Paleobiol & Stratig, Nanjing Inst Geol & Paleontol, Nanjing 210008, Peoples R China
推荐引用方式
GB/T 7714
Sun, Bainian,Dai, Jing,Wang, Yongdong ,et al. Pseudofrenelopsis fossils from Cretaceous gypsum beds in Guixi, Jiangxi Province, China and their geological significance[J]. ISLAND ARC,2011,20(1):43-56.
APA Sun, Bainian,Dai, Jing,Wang, Yongdong ,Jia, Hui,Yan, Defei,&Jiang, Zikun.(2011).Pseudofrenelopsis fossils from Cretaceous gypsum beds in Guixi, Jiangxi Province, China and their geological significance.ISLAND ARC,20(1),43-56.
MLA Sun, Bainian,et al."Pseudofrenelopsis fossils from Cretaceous gypsum beds in Guixi, Jiangxi Province, China and their geological significance".ISLAND ARC 20.1(2011):43-56.
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