A new macrofossil ephedroid plant with unusual bract morphology from the Lower Cretaceous Jiufotang Formation of northeastern China

doi:10.1186/s12862-019-1569-y

	A new macrofossil ephedroid plant with unusual bract morphology from the Lower Cretaceous Jiufotang Formation of northeastern China
	Yang, Yong ; Wang, Yingwei 1; Ferguson, David Kay 2
	2020
发表期刊	BMC EVOLUTIONARY BIOLOGY
ISSN	1471-2148
卷号	20 期号:1
摘要	Background The evolution of the Jehol Biota of western Liaoning in China includes three phases, initiation in the Dabeigou phase, radiation in the Yixian phase, and decline in the Jiufotang phase. Numerous ephedroid macrofossils were reported from the Lower Cretaceous Yixian Formation. However, so far none has been found in the younger Jiufotang Formation (ca. 120.3 Ma) of western Liaoning. Results Here we report a new species Jianchangia verticillata gen. et sp. nov. with unusual morphology from the Lower Cretaceous of the Jiufotang Formation, Lamadong Village, Jianchang County, Liaoning. This species is the first record of gnetophytes from the Jiufotang Formation. It is similar to other ephedroid species from the Yixian Formation in possessing linear leaves with parallel veins, jointed shoots with swollen nodes and longitudinally furrowed internodes, and ovulate cones possessing two whorls of bracts enclosing two chlamydosperms, but differs from all known species by the ovulate cone having multiple fine linear verticillate bracts. Conclusions This study expands our knowledge about the diversity of early gnetophytes in the Lower Cretaceous, and demonstrates the lineage continuity of gnetophytes from the Yixian Formation to the younger Jiufotang Formation.
关键词	China Diversity Ecology Evolution Ephedraceae Gnetophytes Jiufotang Formation Lower Cretaceous
学科领域	Evolutionary Biology ; Genetics & Heredity
DOI	10.1186/s12862-019-1569-y
收录类别	SCI
语种	英语
WOS关键词	EVIDENCE UNVEILING EVOLUTION ; SP-NOV ; YIXIAN FORMATION ; GNETALES ; GNETOPHYTES ; DIVERSITY ; ONTOGENY ; SEEDS ; GEN. ; EPHEDRACEAE
WOS研究方向	Evolutionary Biology ; Genetics & Heredity
WOS记录号	WOS:000513931600001
出版者	BMC
文献子类	Article
出版地	LONDON
资助机构	National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31470301, 31770211]
作者邮箱	ephedra@ibcas.ac.cn
作品OA属性	Green Published, gold
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/21905
专题	系统与进化植物学国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China 2.Chinese Acad Sci, Beijing Bot Garden, Inst Bot, Beijing 100093, Peoples R China 3.Univ Vienna, Dept Paleontol, A-1090 Vienna, Austria
推荐引用方式 GB/T 7714	Yang, Yong,Wang, Yingwei,Ferguson, David Kay. A new macrofossil ephedroid plant with unusual bract morphology from the Lower Cretaceous Jiufotang Formation of northeastern China[J]. BMC EVOLUTIONARY BIOLOGY,2020,20(1).
APA	Yang, Yong,Wang, Yingwei,&Ferguson, David Kay.(2020).A new macrofossil ephedroid plant with unusual bract morphology from the Lower Cretaceous Jiufotang Formation of northeastern China.BMC EVOLUTIONARY BIOLOGY,20(1).
MLA	Yang, Yong,et al."A new macrofossil ephedroid plant with unusual bract morphology from the Lower Cretaceous Jiufotang Formation of northeastern China".BMC EVOLUTIONARY BIOLOGY 20.1(2020).

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
Yang-2020-A new macr（2955KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览请求全文