First flower inclusion and fossil evidence of <i>Cryptocarya</i> (Laurales, Lauraceae) from Miocene amber of Zhangpu (China)

doi:10.3897/fr.27.109621

	*First flower inclusion and fossil evidence of Cryptocarya* (Laurales, Lauraceae) from Miocene amber of Zhangpu (China)**
	Beurel, Simon 6; Bachelier, Julien B.5; Munzinger, Jerome 4; Shao, Fuchen 5; Hammel, Joerg U.3; Shi, Gongle 1,2; Sadowski, Eva-Maria 6
刊名	FOSSIL RECORD
	2024-01-04
卷号	27 期号:1 页码:1-11
关键词	Angiosperm Cenozoic palaeobotany synchrotron X-ray tomography 3D reconstruction
DOI	10.3897/fr.27.109621
通讯作者	Beurel, Simon(Simon.Beurel@mfn.berlin)
英文摘要	Lauraceae have one of the oldest fossil records of angiosperms with the earliest known evidence from the mid-Cretaceous. However, most of these records are based on leaves, especially from the Cenozoic of Asia, which are often challenging to assign to extinct or extant genera or species. In contrast, fossils of reproductive organs are more informative, but remain scarce. We here described the first Cenozoic Lauraceae flower of Asia and confirmed the presence of Cryptocarya in the Miocene Zhangpu flora (Fujian Province, south-eastern China) based on an amber inclusion. We scanned the specimen using synchrotron radiation-based micro-computed tomography (SR mu CT) and then compared the fossil with extant flowers of the genus. The present fossil flower is small, bisexual, and polysymmetric, with a whorled and trimerous perianth and androecium along with a hypanthium around the gynoecium. The perianth comprises six undifferentiated tepals, the androecium consists of nine stamens and three innermost staminodes, and the gynoecium of a single carpel with a superior, unilocular (and uniovulate) ovary. Our study also shows that the fossil shares an unusual position of the typical staminal glands and a short androecial tube on the rim of the hypanthium with at least one extant Australian species of Cryptocarya, which have not been reported before. Nowadays, Lauraceae are still present in tropical to sub-tropical regions, mostly in American and Asian rainforests. The discovery of many Lauraceae leaf fossils in Zhangpu, as well as the amber flower of this study, is consistent with the current reconstruction of the amber source environment as a megathermal seasonal rainforest during the Mid-Miocene.
资助项目	National Science Foundation[1555657] ; German Research Foundation [DFG][423862824]
WOS关键词	PLANT FOSSILS ; SP-NOV. ; CUTICULAR FEATURES ; LOWER CONIACIAN ; MIDDLE MIOCENE ; RAIN-FOREST ; INFLORESCENCES ; EOCENE ; FLORA ; MICROTOMOGRAPHY
WOS研究方向	Paleontology
语种	英语
出版者	PENSOFT PUBLISHERS
WOS记录号	WOS:001163438500001
资助机构	National Science Foundation ; German Research Foundation [DFG]
内容类型	期刊论文
源URL	[http://ir.nigpas.ac.cn/handle/332004/43418]
专题	中国科学院南京地质古生物研究所
通讯作者	Beurel, Simon
作者单位	1.Chinese Acad Sci, Ctr Excellence Life & Palaeoenvironm, Nanjing 210008, Peoples R China 2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China 3.Helmholtz Zentrum Hereon, Inst Mat Phys, Max Planck Str 1, D-21502 Geesthacht, Germany 4.Univ Montpellier, CNRS, AMAP, IRD,CIRAD,INARE, F-34000 Montpellier, France 5.Free Univ Berlin, Inst Biol, Dahlem Ctr Plant Sci, Altensteinstr 6, D-14195 Berlin, Germany 6.Leibniz Inst Evolut & Biodivers Sci, Museum Naturkunde, Invalidenstr 43, D-10115 Berlin, Germany
推荐引用方式 GB/T 7714	Beurel, Simon,Bachelier, Julien B.,Munzinger, Jerome,et al. First flower inclusion and fossil evidence of Cryptocarya (Laurales, Lauraceae) from Miocene amber of Zhangpu (China)[J]. FOSSIL RECORD,2024,27(1):1-11.
APA	Beurel, Simon.,Bachelier, Julien B..,Munzinger, Jerome.,Shao, Fuchen.,Hammel, Joerg U..,...&Sadowski, Eva-Maria.(2024).First flower inclusion and fossil evidence of Cryptocarya (Laurales, Lauraceae) from Miocene amber of Zhangpu (China).FOSSIL RECORD,27(1),1-11.
MLA	Beurel, Simon,et al."First flower inclusion and fossil evidence of Cryptocarya (Laurales, Lauraceae) from Miocene amber of Zhangpu (China)".FOSSIL RECORD 27.1(2024):1-11.