Fossil seeds of Euryale (Nymphaeaceae) indicate a lake or swamp environment in the late Miocene Zhaotong Basin of southwestern China

doi:10.1007/s11434-015-0870-4

	Fossil seeds of Euryale (Nymphaeaceae) indicate a lake or swamp environment in the late Miocene Zhaotong Basin of southwestern China
	Huang,Yongjiang; Ji,Xueping; Su,Tao; Wang,Li; Deng,Chenglong; Li,Wenqi; Luo,Hongfen; Zhou,Zhekun
	2015-10-01
发表期刊	SCIENCE BULLETIN
卷号	60 期号:20 页码:1768-1777
摘要	Euryale (Nymphaeaceae) is a monotypic genus distributed in eastern Asia, but fossils in its native distribution are sparse as compared to Europe where the genus has disappeared. Here, we describe a new fossil species, Euryale yunnanensis sp. nov., from the late Miocene Zhaotong Basin in southwestern China on the basis of seed remains. Characteristics including an ellipsoidal to almost spherical shape, a smooth surface, a germination cap that covers the micropyle, the separation of the hilum and germination cap (micropyle), elliptic testa surface cells with undulate margins and thickened cell walls collectively indicate a close affinity with the genus Euryale in Nymphaeaceae. Comparisons of seed morphology and anatomy demonstrate that the newly described fossil species differs from modern and other fossil species of Euryale and thus verify the assignment to a new fossil species. As the modern Euryale is an aquatic plant, preferably living in swamps and lakes with shallow and stable water, we hypothesize that a lake and/or swamp environment with shallow water was present near Shuitangba in the Zhaotong Basin, where the Shuitangba hominoid lived during the late Miocene. This inference is generally consistent with paleoenvironmental data extracted from avian, fish, frog, turtle and crocodile fossils, as well as from aquatic pollen. The fossil history suggests a comparatively recent (Miocene) emergence of Euryale, which is roughly in agreement with the divergence time inferred from the molecular information.
关键词	Euryale Nymphaeaceae Aquatic Late Miocene Zhaotong Basin Southwestern China
DOI	10.1007/s11434-015-0870-4
收录类别	SCI
语种	英语
WOS记录号	WOS:000364029100008
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/25233
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
推荐引用方式 GB/T 7714	Huang,Yongjiang,Ji,Xueping,Su,Tao,et al. Fossil seeds of Euryale (Nymphaeaceae) indicate a lake or swamp environment in the late Miocene Zhaotong Basin of southwestern China[J]. SCIENCE BULLETIN,2015,60(20):1768-1777.
APA	Huang,Yongjiang.,Ji,Xueping.,Su,Tao.,Wang,Li.,Deng,Chenglong.,...&Zhou,Zhekun.(2015).Fossil seeds of Euryale (Nymphaeaceae) indicate a lake or swamp environment in the late Miocene Zhaotong Basin of southwestern China.SCIENCE BULLETIN,60(20),1768-1777.
MLA	Huang,Yongjiang,et al."Fossil seeds of Euryale (Nymphaeaceae) indicate a lake or swamp environment in the late Miocene Zhaotong Basin of southwestern China".SCIENCE BULLETIN 60.20(2015):1768-1777.

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