Evidence for Wide Dispersal in a Stem Galliform Clade from a New Small-Sized Middle Eocene Pangalliform (Aves: Paraortygidae) from the Uinta Basin of Utah (USA)

doi:10.3390/d12030090

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	Evidence for Wide Dispersal in a Stem Galliform Clade from a New Small-Sized Middle Eocene Pangalliform (Aves: Paraortygidae) from the Uinta Basin of Utah (USA)
	Stidham, Thomas A.1,2,5; Townsend, K. E. Beth 4; Holroyd, Patricia A.3
刊名	DIVERSITY-BASEL
	2020-03-01
卷号	12 期号:3 页码:13
关键词	coracoid dispersal Eocene Galliformes Paraortygidae Uinta Formation Utah
DOI	10.3390/d12030090
通讯作者	Stidham, Thomas A.(presbyornis@gmail.com)
英文摘要	A new bird coracoid from the Uinta Formation in the Uinta Basin in Utah (USA) records the presence of the only known pangalliform from the middle Eocene of North America, occurring in a >15 million year gap in their history. This fossil represents a new taxon, informally termed the Uintan paraortygid, which is also currently the best-supported record of the extinct Paraortygidae in North America (and among the oldest records of the group in the world). The specimen exhibits a derived enlarged procoracoid prominence with a small procoracoid process, and concave elliptical scapular cotyle that are shared with the middle Eocene paraortygids, Xorazmortyx and Scopelortyx; however, the Uintan paraortygid also has a possibly autapomorphic (pneumatic) fossa adjacent to the scapular cotyle. The similarity in body size and morphology among these widely distributed early paraortygids suggests phylogenetic affinity among them. Given their occurrence in the United States, Uzbekistan, and Namibia during the middle Eocene, these birds likely were good fliers with an increased ability to disperse; and probably had a flexible biology or diet allowing them to occupy a diversity of habitats from coasts and forests to semi-arid savannah-like habitats. The problematic early records of Odontophoridae need to be reexamined as potential members of Paraortygidae and associates of these small-bodied taxa.
资助项目	National Natural Sciences Foundation of China[NSFC41772013] ; Franklin Grant of the American Philosophical Society ; Midwestern University
WOS关键词	GALLINULOIDES-WYOMINGENSIS ; BIRD ; AFFINITIES ; MIOCENE
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	MDPI
WOS记录号	WOS:000524229800024
资助机构	National Natural Sciences Foundation of China ; Franklin Grant of the American Philosophical Society ; Midwestern University
内容类型	期刊论文
源URL	[http://119.78.100.205/handle/311034/17349]
专题	古脊椎动物与古人类研究所_图书馆1
通讯作者	Stidham, Thomas A.
作者单位	1.Univ Chinese Acad Sci, Beijing 10049, Peoples R China 2.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 3.Univ Calif Berkeley, Museum Paleontol, Berkeley, CA 94720 USA 4.Midwestern Univ, Coll Grad Studies, Dept Anat, 19555 N 59th Ave, Glendale, AZ 85308 USA 5.CAS Ctr Excellence Life & Paleoenvironm, Beijing 100044, Peoples R China
推荐引用方式 GB/T 7714	Stidham, Thomas A.,Townsend, K. E. Beth,Holroyd, Patricia A.. Evidence for Wide Dispersal in a Stem Galliform Clade from a New Small-Sized Middle Eocene Pangalliform (Aves: Paraortygidae) from the Uinta Basin of Utah (USA)[J]. DIVERSITY-BASEL,2020,12(3):13.
APA	Stidham, Thomas A.,Townsend, K. E. Beth,&Holroyd, Patricia A..(2020).Evidence for Wide Dispersal in a Stem Galliform Clade from a New Small-Sized Middle Eocene Pangalliform (Aves: Paraortygidae) from the Uinta Basin of Utah (USA).DIVERSITY-BASEL,12(3),13.
MLA	Stidham, Thomas A.,et al."Evidence for Wide Dispersal in a Stem Galliform Clade from a New Small-Sized Middle Eocene Pangalliform (Aves: Paraortygidae) from the Uinta Basin of Utah (USA)".DIVERSITY-BASEL 12.3(2020):13.