Early Paleocene landbird supports rapid phylogenetic and morphological diversification of crown birds after the K-Pg mass extinction
文献类型：期刊论文
| 作者 | Ksepka, Daniel T.1; Stidham, Thomas A.2; Williamson, Thomas E.3 |
| 刊名 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
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| 出版日期 | 2017-07-25 |
| 卷号 | 114期号:30页码:8047-8052 |
| 关键词 | aves phylogeny morphology fossil evolution |
| ISSN号 | 0027-8424 |
| DOI | 10.1073/pnas.1700188114 |
| 通讯作者 | Ksepka, Daniel T.(dksepka@brucemuseum.org) |
| 英文摘要 | Evidence is accumulating for a rapid diversification of birds following the K-Pg extinction. Recent molecular divergence dating studies suggest that birds radiated explosively during the first few million years of the Paleocene; however, fossils from this interval remain poorly represented, hindering our understanding of morphological and ecological specialization in early neoavian birds. Here we report a small fossil bird from the Nacimiento Formation of New Mexico, constrained to 62.221-62.517 Ma. This partial skeleton represents the oldest arboreal crown group bird known. Phylogenetic analyses recovered Tsidiiyazhi abini gen. et sp. nov. as a member of the Sandcoleidae, an extinct basal clade of stem mousebirds (Coliiformes). The discovery of Tsidiiyazhi pushes the minimum divergence ages of as many as nine additional major neoavian lineages into the earliest Paleocene, compressing the duration of the proposed explosive post-K-Pg radiation of modern birds into a very narrow temporal window parallel to that suggested for placental mammals. Simultaneously, Tsidiiyazhi provides evidence for the rapid morphological (and likely ecological) diversification of crown birds. Features of the foot indicate semizygodactyly (the ability to facultatively reverse the fourth pedal digit), and the arcuate arrangement of the pedal trochleae bears a striking resemblance to the conformation in owls (Strigiformes). Inclusion of fossil taxa and branch length estimates impacts ancestral state reconstructions, revealing support for the independent evolution of semizygodactyly in Coliiformes, Leptosomiformes, and Strigiformes, none of which is closely related to extant clades exhibiting full zygodactyly. |
| WOS关键词 | STEM-GROUP REPRESENTATIVES ; FOSSIL RECORD ; EVOLUTIONARY HISTORY ; GRASPING FOOT ; RAIN-FOREST ; NEW-MEXICO ; RADIATION ; EOCENE ; AVES ; PSITTACIFORMES |
| 资助项目 | National Evolutionary Synthesis Center (National Science Foundation)[EF-0905606] ; National Evolutionary Synthesis Center (National Science Foundation)[EF-0423641] ; Chinese National Natural Science Foundation[NSFC41472025] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB03020501] ; Bureau of Land Management ; National Science Foundation[EAR-0207750] ; National Science Foundation[EAR-1325544] |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000406189900079 |
| 出版者 | NATL ACAD SCIENCES |
| 资助机构 | National Evolutionary Synthesis Center (National Science Foundation) ; Chinese National Natural Science Foundation ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Bureau of Land Management ; National Science Foundation |
| 源URL | [http://124.16.247.212/handle/311034/8042]  |
| 专题 | 古脊椎动物与古人类研究所_图书馆1 |
| 通讯作者 | Ksepka, Daniel T. |
| 作者单位 | 1.Bruce Museum, Greenwich, CT 06830 USA 2.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 3.New Mexico Museum Nat Hist & Sci, Albuquerque, NM 87104 USA |
| 推荐引用方式 GB/T 7714 | Ksepka, Daniel T.,Stidham, Thomas A.,Williamson, Thomas E.. Early Paleocene landbird supports rapid phylogenetic and morphological diversification of crown birds after the K-Pg mass extinction[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2017,114(30):8047-8052. |
| APA | Ksepka, Daniel T.,Stidham, Thomas A.,&Williamson, Thomas E..(2017).Early Paleocene landbird supports rapid phylogenetic and morphological diversification of crown birds after the K-Pg mass extinction.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,114(30),8047-8052. |
| MLA | Ksepka, Daniel T.,et al."Early Paleocene landbird supports rapid phylogenetic and morphological diversification of crown birds after the K-Pg mass extinction".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 114.30(2017):8047-8052. |
入库方式： OAI收割
来源：古脊椎动物与古人类研究所
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