dinosaurassociatedpoaceaeepidermisandphytolithsfromtheearlycretaceousofchina

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	dinosaurassociatedpoaceaeepidermisandphytolithsfromtheearlycretaceousofchina
	Wu Yan; You Hailu; Li Xiaoqiang
	2018
发表期刊	国家科学评论英文版
ISSN	2095-5138
卷号	005 期号:005 页码:721
摘要	Grasses(Poaceae) are human’s most important crop plants and among the most important extant clades of vascular plants. However, the origin and early evolution of grasses are controversial, with estimated ages from molecular dating ranging between 59 and 129 Ma(million years ago). Here we report the discovery of basalmost grasses from the late Early Cretaceous(Albian, 113-101 Ma) of China based on microfossils(silicified epidermal pieces and phytoliths) extracted from a special structure along the dentition of a basal hadrosauroid(duck-billed dinosaur). Thus, this discovery represents the earliest known grass fossils, and is congruent with previous estimations on grass origin and early evolution calibrated by oldest known fossil grasses, highlighting the role of fossils in molecular dating. This discovery also indicates deep-diverging grasses probably gained broad distribution across both Laurasian and Gondwanan continents during the Barremian(129-125 Ma).
语种	英语
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/10521
专题	中国科学院古脊椎动物与古人类研究所
作者单位	中国科学院古脊椎动物与古人类研究所
第一作者单位	中国科学院古脊椎动物与古人类研究所
推荐引用方式 GB/T 7714	Wu Yan,You Hailu,Li Xiaoqiang. dinosaurassociatedpoaceaeepidermisandphytolithsfromtheearlycretaceousofchina[J]. 国家科学评论英文版,2018,005(005):721.
APA	Wu Yan,You Hailu,&Li Xiaoqiang.(2018).dinosaurassociatedpoaceaeepidermisandphytolithsfromtheearlycretaceousofchina.国家科学评论英文版,005(005),721.
MLA	Wu Yan,et al."dinosaurassociatedpoaceaeepidermisandphytolithsfromtheearlycretaceousofchina".国家科学评论英文版 005.005(2018):721.