A new species of Ormosia (Leguminosae) from the middle Miocene of Fujian, Southeast China and its biogeography

被引：16
作者：
Wang, Zixi [1 ,2 ]
Shi, Gongle [1 ,2 ]
Sun, Bainian [3 ,4 ]
Yin, Suxin [1 ,2 ]
机构：
[1] Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Jiangsu, Peoples R China
[2] Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Nanjing 210008, Jiangsu, Peoples R China
[3] Lanzhou Univ, Sch Earth Sci, Lanzhou 730000, Gansu, Peoples R China
[4] Lanzhou Univ, Key Lab Mineral Resources Western China Gansu Pro, Lanzhou 730000, Gansu, Peoples R China
来源：
REVIEW OF PALAEOBOTANY AND PALYNOLOGY | 2019年 / 270卷
基金：
中国国家自然科学基金;
关键词：
Ormosia; middle Miocene; Fujian; pod; biogeography; NEOGENE; YUNNAN; FRUITS; CLASSIFICATION; OLIGOCENE; PROGRESS; CLIMATE; FOREST; FOSSIL;
D O I：
10.1016/j.revpalbo.2019.07.003
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
The Leguminosae are the third-largest angiosperm family with crucial floristic and ecological importance in major biomes, especially in tropical rainforests. However, reliable fossils of the family are not common in East Asia, rendering a poor understanding of the diversification and biogeographic history of the Leguminosae in this region. In this paper we described a new species of Ormosia (Leguminosae: Papilionoideae) based on compressed fruits (legumes) from the middle Miocene of Fujian in southeastern China. Ormosia zhangpuensis sp. nov. is an obovate to broadly elliptical fruit with acuminate apex, and constricted, neck-like base. Each fruit contains one single seed. External cuticle of pericarp has trichome bases and randomly oriented, anomocytic stomata. The studied fossils provide a new evidence for the diversity of the Leguminosae in East Asia during the Neogene. Fossil records also indicate that Ormosia had expanded its distribution southwards, probably in response to the global climatic cooling during the Cenozoic. (C) 2019 Elsevier B.V. All rights reserved.
引用
收藏
页码：40 / 47
页数：8
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