Male spike strobiles with Gnetum affinity from the Early Cretaceous in western Liaoning, Northeast China
Guo, Shuang-Xing1,2; Sha, Jin-Geng3; Bian, Li-Zeng4; Qiu, Yin-Long5
2009-03-01
发表期刊JOURNAL OF SYSTEMATICS AND EVOLUTION
ISSN0529-1526
卷号47期号:2页码:93-102
摘要A fossil with Gnetum affinity was found in the Jianshangou Member (Barremian Age) of the Yixian Formation (Lower Cretaceous Epoch) of the Jehol Group in western Liaoning, northeastern China. The single fossil specimen is represented by both elongate-cylindrical male spike strobiles which home within a nodal bract of cauliflorous branch. The spike strobiles have apparent nodes, invisible internodes, and numerous verticillate involucral collars. The microsporangiate units within involucral collars are not seen. The male spike strobiles with verticillate involucral collars occur exclusively in Gnetum; hence, the fossil strobiles are attributed to a new taxon, Khitania columnispicata gen. & sp. nov., being closely related to Gnetum. The general isotopic dating suggests an age of Barremian, ca. 125-122 million years (Myr) ago for the Jianshangou Member. The palaeoecological and palaeoclimatic inference based on the compositions of flora and fauna, and lithological characters of the fossil locality suggests that the fossil plants grew in a subtropical mesophytic forest and under a warmer climate. The remains of male spike strobiles are the first record of gnetalean macrofossil. It documents the evolution of the distinct gnetoid morphology and indicates a wider range of distribution of Gnetaceae in the Early Cretaceous than present day.
关键词Biogeography Early Cretaceous Gnetum Affinity Male Spike Strobiles Northeastern China
资助信息Knowledge Innovation Program of the Chinese Academy of Sciences [KZCX2-114]; National Natural Science Foundation of China [40632010]
收录类别SCI
语种英语
引用统计
文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/2713
专题中国科学院东亚植物多样性与生物地理学重点实验室
作者单位1.Chinese Acad Sci, Nanjing Inst Geol & Paleontol, Dept Palaeobot & Palynol, Nanjing 210008, Peoples R China
2.Chinese Acad Sci, Kunming Inst Bot, Lab Biodivers & Biogeog, Kunming 650204, Peoples R China
3.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China
4.Nanjing Univ, Coll Earth Sci, Nanjing 210093, Peoples R China
5.Univ Michigan, Univ Herbarium, Dept Ecol & Evolutionary Biol, Ann Arbor, MI 48109 USA
推荐引用方式
GB/T 7714
Guo, Shuang-Xing,Sha, Jin-Geng,Bian, Li-Zeng,et al. Male spike strobiles with Gnetum affinity from the Early Cretaceous in western Liaoning, Northeast China[J]. JOURNAL OF SYSTEMATICS AND EVOLUTION,2009,47(2):93-102.
APA Guo, Shuang-Xing,Sha, Jin-Geng,Bian, Li-Zeng,&Qiu, Yin-Long.(2009).Male spike strobiles with Gnetum affinity from the Early Cretaceous in western Liaoning, Northeast China.JOURNAL OF SYSTEMATICS AND EVOLUTION,47(2),93-102.
MLA Guo, Shuang-Xing,et al."Male spike strobiles with Gnetum affinity from the Early Cretaceous in western Liaoning, Northeast China".JOURNAL OF SYSTEMATICS AND EVOLUTION 47.2(2009):93-102.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
201111010002.pdf(536KB) 开放获取--请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Guo, Shuang-Xing]的文章
[Sha, Jin-Geng]的文章
[Bian, Li-Zeng]的文章
百度学术
百度学术中相似的文章
[Guo, Shuang-Xing]的文章
[Sha, Jin-Geng]的文章
[Bian, Li-Zeng]的文章
必应学术
必应学术中相似的文章
[Guo, Shuang-Xing]的文章
[Sha, Jin-Geng]的文章
[Bian, Li-Zeng]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。