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DOI	10.1126/science.1180350
	A complete skeleton of a Late triassic Saurischian and the early evolution of dinosaurs
	Nesbitt S.J.; Smith N.D.; Irmis R.B.; Turner A.H.; Downs A.; Norell M.A.
发表日期	2009
ISSN	0036-8075
起始页码	1530
结束页码	1533
卷号	326 期号:5959
英文摘要	Characterizing the evolutionary history of early dinosaurs is central to understanding their rise and diversification in the Late Triassic. However, fossils from basal lineages are rare. A new theropod dinosaur from New Mexico is a representative of the early North American diversification. Known from several nearly complete skeletons, it reveals a mosaic of plesiomorphic and derived features that clarify early saurischian dinosaur evolution and provide evidence for the antiquity of novel avian character systems including skeletal pneumaticity. The taxon further reveals latitudinal differences among saurischian assemblages during the Late Triassic, demonstrates that the theropod fauna from the Late Triassic of North America was not endemic, and suggests that intercontinental dispersal was prevalent during this time.
英文关键词	dinosaur; endemic species; evolutionary biology; fossil record; paleontology; skeleton; Triassic; Antiquity; article; biodiversity; dinosaur; evolutionary developmental biology; fauna; fossil; mosaicism; nonhuman; North America; priority journal; skeleton; taxonomy; United States; Upper Triassic; Animals; Bone and Bones; Bones of Lower Extremity; Bones of Upper Extremity; Dinosaurs; Evolution; Fossils; New Mexico; Phylogeny; Skeleton; Skull; Spine; North America; Aves; Dinosauria; Saurischia; Theropoda
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/244871
作者单位	Division of Paleontology, American Museum of Natural History, New York, NY 10024, United States; Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY 10964, United States; Committee on Evolutionary Biology, University of Chicago, Chicago, IL 60637, United States; Department of Geology, Field Museum of Natural History, Chicago, IL 60605, United States; Utah Museum of Natural History, 1390 East Presidents Circle, Salt Lake City, UT 84112-0050, United States; Department of Geology and Geophysics, University of Utah, Salt Lake City, UT 84112-0102, United States; Department of Anatomical Sciences, Stony Brook University, Health Science Center T-8 (040), Stony Brook, NY 11794, United States; Ruth Hall Museum of Paleontology, Ghost Ranch Conference Center, Abiquiu, NM 87510-9601, United States; Jackson School of Geosciences, University of Texas at Austin, Austin, TX 78712, United States
推荐引用方式 GB/T 7714	Nesbitt S.J.,Smith N.D.,Irmis R.B.,et al. A complete skeleton of a Late triassic Saurischian and the early evolution of dinosaurs[J],2009,326(5959).
APA	Nesbitt S.J.,Smith N.D.,Irmis R.B.,Turner A.H.,Downs A.,&Norell M.A..(2009).A complete skeleton of a Late triassic Saurischian and the early evolution of dinosaurs.Science,326(5959).
MLA	Nesbitt S.J.,et al."A complete skeleton of a Late triassic Saurischian and the early evolution of dinosaurs".Science 326.5959(2009).