Assembly of modern mammal community structure driven by Late Cretaceous dental evolution, rise of flowering plants, and dinosaur demise
Chen, Meng1,2; Stromberg, Caroline A. E.3,4; Wilson, Gregory P.3,4
2019-05-14
发表期刊PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
ISSN0027-8424
卷号116期号:20页码:9931-9940
摘要

The long-standing view that Mesozoic mammaliaforms living in dinosaur-dominated ecosystems were ecologically constrained to small size and insectivory has been challenged by astonishing fossil discoveries over the last three decades. By studying these well-preserved early mammaliaform specimens, paleontologists now agree that mammaliaforms underwent ecomorphological diversification during the Mesozoic Era. This implies that Mesozoic mammaliaform communities had ecological structure and breadth that were comparable to today's small-bodied mammalian communities. However, this hypothesis remains untested in part because the primary focus of most studies is on individual taxa. Here, we present a study quantifying the ecological structure of Mesozoic mammaliaform communities with the aim of identifying evolutionary and ecological drivers that influenced the deep-time assembly of small-bodied mammaliaform communities. We used body size, dietary preference, and locomotor mode to establish the ecospace occupation of 98 extant, small-bodied mammalian communities from diverse biomes around the world. We calculated ecological disparity and ecological richness to measure the magnitude of ecological differences among species in a community and the number of different eco-cells occupied by species of a community, respectively. This modern dataset served as a reference for analyzing five exceptionally preserved, extinct mammaliaform communities (two Jurassic, two Cretaceous, one Eocene) from Konservat-Lagerstatten. Our results indicate that the interplay of at least three factors, namely the evolution of the tribosphenic molar, the ecological rise of angiosperms, and potential competition with other vertebrates, may have been critical in shaping the ecological structure of small-bodied mammaliaform communities through time.

关键词Mesozoic mammaliaform mammal community ecological structure tribosphenic molar angiosperm diversification
DOI10.1073/pnas.1820863116
收录类别SCI
语种英语
WOS研究方向Science & Technology - Other Topics
WOS类目Multidisciplinary Sciences
WOS记录号WOS:000467804000043
出版者NATL ACAD SCIENCES
文献类型期刊论文
条目标识符http://ir.nigpas.ac.cn/handle/332004/22366
专题中国科学院南京地质古生物研究所
作者单位1.Nanjing Univ, Sch Earth Sci & Engn, Nanjing 210023, Jiangsu, Peoples R China;
2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China;
3.Univ Washington, Dept Biol, Seattle, WA 98195 USA;
4.Univ Washington, Burke Museum Nat Hist & Culture, Seattle, WA 98195 USA
第一作者单位中国科学院南京地质古生物研究所
推荐引用方式
GB/T 7714
Chen, Meng,Stromberg, Caroline A. E.,Wilson, Gregory P.. Assembly of modern mammal community structure driven by Late Cretaceous dental evolution, rise of flowering plants, and dinosaur demise[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2019,116(20):9931-9940.
APA Chen, Meng,Stromberg, Caroline A. E.,&Wilson, Gregory P..(2019).Assembly of modern mammal community structure driven by Late Cretaceous dental evolution, rise of flowering plants, and dinosaur demise.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,116(20),9931-9940.
MLA Chen, Meng,et al."Assembly of modern mammal community structure driven by Late Cretaceous dental evolution, rise of flowering plants, and dinosaur demise".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 116.20(2019):9931-9940.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Assembly of modern m(6238KB)期刊论文出版稿开放获取CC BY-NC-SA请求全文
个性服务
查看访问统计
谷歌学术
谷歌学术中相似的文章
[Chen, Meng]的文章
[Stromberg, Caroline A. E.]的文章
[Wilson, Gregory P.]的文章
百度学术
百度学术中相似的文章
[Chen, Meng]的文章
[Stromberg, Caroline A. E.]的文章
[Wilson, Gregory P.]的文章
必应学术
必应学术中相似的文章
[Chen, Meng]的文章
[Stromberg, Caroline A. E.]的文章
[Wilson, Gregory P.]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。