Late Miocene Pods and Leaves of Albizzia (Leguminosae: Mimosoideae) from Yunnan, SW China and Their Phytogeographic Implications
Late Miocene Pods and Leaves of Albizzia (Leguminosae: Mimosoideae) from Yunnan, SW China and Their Phytogeographic Implications
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DOI：
10.1111/1755-6724.13354
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发表时间：
2017-08
期刊：
影响因子：
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通讯作者：
Bin-Ke Li;S. Xie;Sihang Zhang;Tian-yu Chen;Yang Shao
中科院分区：
文献类型：
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作者：
Bin-Ke Li;S. Xie;Sihang Zhang;Tian-yu Chen;Yang Shao
合欢是豆科合欢亚科的一个属，现代约有150种，广泛分布于亚洲、非洲、澳大利亚和美洲的热带和亚热带地区。其中17种主要分布在华南和西南地区。在北半球的白垩纪和古近纪地层中发现了大量的含叶菊亚科化石，包括叶、荚、花和木。然而，新近纪含羞虫科的记录相对较少。本文描述了中国云南邦迈组合欢属植物的荚和叶化石。他们被划分为3个种，包括：Albizzia scalpelliformis Guo、Li和Xie；云南是世界著名的生物热点地区，临沧合欢化石的发现不仅提供了云南新近纪植物多样性的重要信息，而且为云南的植物地理历史提供了新的证据。
Albizzia is a leguminous genus belonging to the subfamily Mimosoideae with approximately 150 modern species, widely distributed in the tropical and subtropical regions of Asia, Africa, Australia and America. Among them, 17 species are mainly distributed in southern and southwestern China. Abundant fossils of the subfamily Mimosoideae, including leaves, pods, flowers and wood, have been reported from the Cretaceous and Paleogene strata of the Northern Hemisphere. However, Neogene records of Mimosoideae are relatively scarce. In this study, fossil pods and leaves belonging to the genus Albizzia from the Bangmai Formation of Yunnan, China were described. They were assigned to three species, including Albizzia scalpelliformis Guo, Li and Xie Emended, Albizzia cf. kalkora (Roxb.) Prain and Albizzia sp. The occurrence of Albizzia fossils from Lincang not only gives important information on the Neogene plant diversity from Yunnan—a worldwide famous biological hotspot—but also provides additional evidence for its phytogeographic history.