Leaf anatomy of a late Palaeozoic cycad | |
Feng, Zhuo (冯卓)1,2,3,5; Lv, Yong5; Guo, Yun1,4; Wei, Hai-Bo1; Kerp, Hans6 | |
刊名 | BIOLOGY LETTERS |
2017-11-01 | |
卷号 | 13期号:11页码:5 |
关键词 | Plagiozamites Cuticle Cycads Late Palaeozoic China |
ISSN号 | 1744-9561 |
DOI | 10.1098/rsbl.2017.0456 |
英文摘要 | Today, cycads are a small group of gymnospermous plants with a limited distribution in the (sub)tropics, but they were major constituents of Mesozoic floras. Fossil leaves sporadically found in latest Carboniferous and Permian floras have putatively been ascribed to cycads. However, their true affinity remains unclear due to the lack of anatomical evidence. Virtually all modern cycads have pinnate leaves, but this type of leaf morphology is by no means unique for cycads. Pinnate leaves of Plagiozamites oblongifolius Halle 1927 with well-preserved cuticles showing the epidermal anatomy are here described from the upper Permian Xuanwei Formation of Yunnan Province, Southwest China. The cuticles show a clear differentiation into costal and intercostal zones; stomata are confined to the intercostal zones on both the upper and lower leaf surfaces. The external morphology and the epidermal anatomy of these fossil leaves are closely comparable with those of extant cycads, particularly members of the family Zamiaceae. |
资助项目 | National Natural Science Foundation of China[41422201] ; National Natural Science Foundation of China[41672015] ; National Natural Science Foundation of China[41302014] ; National Natural Science Foundation of China[41762002] ; Yunnan Provincial Science and Technology Department[2016FA019] ; China Geological Survey[DD20160061] ; State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, CAS[20161101] ; State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, CAS[2015KF04] ; Key Laboratory of Economic Stratigraphy and Palaeogeography, Nanjing Institute of Geology and Palaeontology, CAS[20161101] ; Key Laboratory of Economic Stratigraphy and Palaeogeography, Nanjing Institute of Geology and Palaeontology, CAS[2015KF04] ; Alexander von Humboldt Foundation[1134259] |
WOS关键词 | China ; Affinities ; Reevaluation ; Taiyuan ; Fossil ; Leaves |
WOS研究方向 | Life Sciences & Biomedicine - Other Topics ; Environmental Sciences & Ecology ; Evolutionary Biology |
语种 | 英语 |
出版者 | ROYAL SOC |
WOS记录号 | WOS:000416597400012 |
资助机构 | National Natural Science Foundation of China ; Yunnan Provincial Science and Technology Department ; China Geological Survey ; State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, CAS ; Key Laboratory of Economic Stratigraphy and Palaeogeography, Nanjing Institute of Geology and Palaeontology, CAS ; Alexander von Humboldt Foundation |
内容类型 | 期刊论文 |
源URL | [http://ir.nigpas.ac.cn/handle/332004/18745] |
专题 | 中国科学院南京地质古生物研究所 |
通讯作者 | Feng, Zhuo (冯卓); Lv, Yong |
作者单位 | 1.Yunnan Univ, Inst Deep Time Terr Ecol, Kunming 650091, Yunnan, Peoples R China 2.Yunnan Univ, Res Ctr Earth Syst Sci, Kunming 650500, Yunnan, Peoples R China 3.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Jiangsu, Peoples R China 4.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Key Lab Econ Stratig & Palaeogeog, Nanjing 210008, Jiangsu, Peoples R China 5.Chinese Acad Geol Sci, Inst Karst Geol, Guilin 541004, Peoples R China 6.Westfal Wilhelms Univ, Forschungsstelle Palaobot, Heisenbergstr 2, D-48149 Munster, Germany |
推荐引用方式 GB/T 7714 | Feng, Zhuo ,Lv, Yong,Guo, Yun,et al. Leaf anatomy of a late Palaeozoic cycad[J]. BIOLOGY LETTERS,2017,13(11):5. |
APA | Feng, Zhuo ,Lv, Yong,Guo, Yun,Wei, Hai-Bo,&Kerp, Hans.(2017).Leaf anatomy of a late Palaeozoic cycad.BIOLOGY LETTERS,13(11),5. |
MLA | Feng, Zhuo ,et al."Leaf anatomy of a late Palaeozoic cycad".BIOLOGY LETTERS 13.11(2017):5. |
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