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First fossil of Pterolobium (Leguminosae) from the Middle Miocene Yunnan, South China
Jia, Lin-Bo1; Huang, Yong-Jiang1; Sun, Hang1; Su, Tao2; Huang, Jian2; Zhou, Zhe-Kun2
2017
Source PublicationREVIEW OF PALAEOBOTANY AND PALYNOLOGY
Volume242Issue:xPages:21-32
Abstract

Here we describe the first fossil species of Pterolobium (Leguminosae), Pterolobium punctatopsis sp. nov., based on two compressed fruits from the Middle Miocene (16.5-15.2 Ma) Maguan Basin, southeastern Yunnan, South China. The fruits are asymmetrically winged, consisting of an elliptical fruit body and a laterally extended membranous wing. Extensive comparisons with both extant and extinct genera that produce asymmetric winged fruits indicate that our fossil fruits can be unequivocally referred to Pterolobium. This fossil finding adds a new member into the fossil Leguminosae, enriching our knowledge of the past diversity of the large family. It implies that the genus already existed in South China, where it currently grows, at least by the Middle Miocene. As modern species of Pterolobium live in warm regions, the discovery of P. punctatopsis indicates a warm climate in Maguan region during the Middle Miocene. In contrast to the scarce fossil occurrence of Pterolobium, its sister group, Mezoneuron, has a relatively good fossil record that traces back to the Eocene.

KeywordAsymmetrically Winged Fruit Pterolobium Leguminosae Middle Miocene Yunnan South China
Language英语
Document Type期刊论文
Identifierhttp://ir.xtbg.org.cn/handle/353005/10406
Collection古生态研究组
Corresponding AuthorZhou, Zhe-Kun
Affiliation1.Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, China
2.Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla 666303, China
Recommended Citation
GB/T 7714
Jia, Lin-Bo,Huang, Yong-Jiang,Sun, Hang,et al. First fossil of Pterolobium (Leguminosae) from the Middle Miocene Yunnan, South China[J]. REVIEW OF PALAEOBOTANY AND PALYNOLOGY,2017,242(x):21-32.
APA Jia, Lin-Bo,Huang, Yong-Jiang,Sun, Hang,Su, Tao,Huang, Jian,&Zhou, Zhe-Kun.(2017).First fossil of Pterolobium (Leguminosae) from the Middle Miocene Yunnan, South China.REVIEW OF PALAEOBOTANY AND PALYNOLOGY,242(x),21-32.
MLA Jia, Lin-Bo,et al."First fossil of Pterolobium (Leguminosae) from the Middle Miocene Yunnan, South China".REVIEW OF PALAEOBOTANY AND PALYNOLOGY 242.x(2017):21-32.
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