New fossil seeds of Eurya (Theaceae) from East Asia and their paleobiogeographic implications.

	New fossil seeds of Eurya (Theaceae) from East Asia and their paleobiogeographic implications.
	Zhu, Hai; Huang, Yong-Jiang; Su, Tao; Zhou, Zhe-Kun
	2016
发表期刊	Plant diversity
ISSN	2468-2659
卷号	38 期号:3 页码:125-132
摘要	Eurya has an excellent fossil record in Europe, but it has only a few fossil occurrences in East Asia though this vast area houses the highest modern diversity of the genus. In this study, three-dimensionally preserved fossil seeds of Eurya stigmosa (Ludwig) Mai from the late Pliocene of northwestern Yunnan, southwestern China are described. The seeds are compressed and flattened, slightly campylotropous, and nearly circular to slightly angular in shape. The surface of the seeds is sculptured by a distinctive foveolate pattern, consisting of funnel-shaped and finely pitted cells. Each seed valve contains a reniform or horseshoe-shaped embryo cavity, a characteristic condyle structure and an internal raphe. These fossil seeds represent one of the few fossil records of Eurya in East Asia. This new finding therefore largely extends the distributional ranges of Eurya during Neogene. Fossil records summarized here show that Eurya persisted in Europe until the early Pleistocene, but disappeared thereafter. The genus might have first appeared in East Asia no later than the late Oligocene, and dispersed widely in regions such as Japan, Nepal, and southwestern China.
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/64891
专题	植物化学与西部植物资源持续利用国家重点实验室
推荐引用方式 GB/T 7714	Zhu, Hai,Huang, Yong-Jiang,Su, Tao,et al. New fossil seeds of Eurya (Theaceae) from East Asia and their paleobiogeographic implications.[J]. Plant diversity,2016,38(3):125-132.
APA	Zhu, Hai,Huang, Yong-Jiang,Su, Tao,&Zhou, Zhe-Kun.(2016).New fossil seeds of Eurya (Theaceae) from East Asia and their paleobiogeographic implications..Plant diversity,38(3),125-132.
MLA	Zhu, Hai,et al."New fossil seeds of Eurya (Theaceae) from East Asia and their paleobiogeographic implications.".Plant diversity 38.3(2016):125-132.