Earliest fossils of giant-sized bony-toothed birds (Aves: Pelagornithidae) from the Eocene of Seymour Island, Antarctica

doi:10.1038/s41598-020-75248-6

	Earliest fossils of giant-sized bony-toothed birds (Aves: Pelagornithidae) from the Eocene of Seymour Island, Antarctica
	Kloess, Peter A.5,6; Poust, Ashley W.4,5,6; Stidham, Thomas A.1,2,3
刊名	SCIENTIFIC REPORTS
	2020-10-26
卷号	10 期号:1 页码:11
ISSN号	2045-2322
DOI	10.1038/s41598-020-75248-6
通讯作者	Kloess, Peter A.(pakloess@berkeley.edu) ; Poust, Ashley W.(apoust@sdnhm.org) ; Stidham, Thomas A.(presbyornis@gmail.com)
英文摘要	While pelagornithid or 'bony-toothed' bird fossils representing multiple species are known from Antarctica, a new dentary fragment of a pelagornithid bird from the middle Eocene Submeseta Formation on Seymour Island, Antarctica represents a species with a body size on par with the largest known species in the clade. Measurements from the partial 'toothed' dentary point to a giant body size for the species, although the spacing among the pseudoteeth differs from that published for other pelagornithids. The discrepancy might suggest that previous techniques are not adequate for examination of incomplete material or that another factor such as phylogeny might impact size estimates and comparisons. Combined with a revised stratigraphic position in the early Eocene La Meseta Formation on Seymour Island for the largest pelagornithid tarsometatarsus known, these Antarctic fossils demonstrate the early evolution of giant body size in the clade (by similar to 50 Ma), and they likely represent not only the largest flying birds of the Eocene but also some of the largest volant birds that ever lived (with an estimated 5-6 m wingspan). Furthermore, the distribution of giantsized pelagornithid fossils across more than 10 million years of Antarctic geological deposits points to a prolonged survival of giant-sized pelagornithids within the southern seas, and their success as a pelagic predatory component of marine and coastal ecosystems alongside early penguins.
资助项目	UC Museum of Paleontology Student Support Fund ; Integrative Biology GRAC Travel Funds ; National Natural Science Foundation of China[NSFC 41772013]
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	NATURE RESEARCH
WOS记录号	WOS:000615370600018
资助机构	UC Museum of Paleontology Student Support Fund ; Integrative Biology GRAC Travel Funds ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://119.78.100.205/handle/311034/18699]
专题	中国科学院古脊椎动物与古人类研究所
通讯作者	Kloess, Peter A.; Poust, Ashley W.; Stidham, Thomas A.
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Beijing 100044, Peoples R China 3.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China 4.San Diego Nat Hist Museum, Dept Paleontol, San Diego, CA 92182 USA 5.Univ Calif Berkeley, Museum Paleontol, Berkeley, CA 94720 USA 6.Univ Calif Berkeley, Dept Integrat Biol, Berkeley, CA 94720 USA
推荐引用方式 GB/T 7714	Kloess, Peter A.,Poust, Ashley W.,Stidham, Thomas A.. Earliest fossils of giant-sized bony-toothed birds (Aves: Pelagornithidae) from the Eocene of Seymour Island, Antarctica[J]. SCIENTIFIC REPORTS,2020,10(1):11.
APA	Kloess, Peter A.,Poust, Ashley W.,&Stidham, Thomas A..(2020).Earliest fossils of giant-sized bony-toothed birds (Aves: Pelagornithidae) from the Eocene of Seymour Island, Antarctica.SCIENTIFIC REPORTS,10(1),11.
MLA	Kloess, Peter A.,et al."Earliest fossils of giant-sized bony-toothed birds (Aves: Pelagornithidae) from the Eocene of Seymour Island, Antarctica".SCIENTIFIC REPORTS 10.1(2020):11.