典型文献
Guazia,the earliest ovule without cupule but with unique integumentary lobes
文献摘要：
The earliest ovules in the Late Devonian(Famennian)are surrounded by a cupule that is involved in both protection and pollination,and generally have free integumentary lobes.Here we report a new taxon from the Famennian of China,Guazia dongzhiensis gen.et sp.nov.The terminally borne ovule is apparently acupulate(without cupule)and has four radially arranged wing-like integumentary lobes that are extensively fused,and folded lengthwise and inwards.Guazia provides evidence that not all Devonian seeds possess a cupule and it increases their diversity in integumentary lobes.This genus also suggests that the integuments develop new functions,probably including wind dispersal at the expense of the cupules.
文献关键词：
中图分类号：
作者姓名：
De-Ming Wang;Le Liu;Yi Zhou;Min Qin;Mei-Cen Meng;Yun Guo;Jin-Zhuang Xue
作者机构：
Key Laboratory of Orogenic Belts and Crustal Evolution,Department of Geology,Peking University,Beijing 100871,China;School of Geoscience and Surveying Engineering,China University of Mining and Technology(Beijing),Beijing 100083,China;Institute of Geology and Paleontology,Linyi University,Linyi 276000,China;Institute of Deep Time Terrestrial Ecology,Institute of Palaeontology,Yunnan Key Laboratory of Earth System Science,Yunnan University,Kunming 650500,China
文献出处：
引用格式：
[1]De-Ming Wang;Le Liu;Yi Zhou;Min Qin;Mei-Cen Meng;Yun Guo;Jin-Zhuang Xue-.Guazia,the earliest ovule without cupule but with unique integumentary lobes)[J].国家科学评论（英文版）,2022(04):8-15
A类：
Guazia,cupule,integumentary,Famennian,dongzhiensis,acupulate,lengthwise,cupules
B类：
earliest,without,but,unique,lobes,ovules,Late,Devonian,surrounded,by,that,involved,both,protection,pollination,generally,have,free,Here,we,report,new,taxon,from,China,et,nov,terminally,borne,apparently,has,four,radially,arranged,wing,like,extensively,fused,folded,inwards,provides,evidence,not,seeds,possess,increases,their,diversity,This,genus,also,suggests,integuments,develop,functions,probably,including,wind,dispersal,expense
AB值：
0.498151
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机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
