A Short-Snouted, Middle Triassic Phytosaur and its Implications for the Morphological Evolution and Biogeography of Phytosauria

doi:10.1038/srep46028

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	A Short-Snouted, Middle Triassic Phytosaur and its Implications for the Morphological Evolution and Biogeography of Phytosauria
	Stocker, Michelle R.1; Zhao, Li-Jun 2; Nesbitt, Sterling J.1; Wu, Xiao-Chun3 ; Li, Chun4
	2017-04-10
发表期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
卷号	7 期号:1 页码:1-9
文章类型	Article
摘要	Following the end-Permian extinction, terrestrial vertebrate diversity recovered by the Middle Triassic, and that diversity was now dominated by reptiles. However, those reptilian clades, including archosaurs and their closest relatives, are not commonly found until similar to 30 million years post-extinction in Late Triassic deposits despite time-calibrated phylogenetic analyses predicting an Early Triassic divergence for those clades. One of these groups from the Late Triassic, Phytosauria, is well known from a near-Pangean distribution, and this easily recognized clade bears an elongated rostrum with posteriorly retracted nares and numerous postcranial synapomorphies that are unique compared with all other contemporary reptiles. Here, we recognize the exquisitely preserved, nearly complete skeleton of Diandongosuchus fuyuanensis from the Middle Triassic of China as the oldest and basalmost phytosaur. The Middle Triassic age and lack of the characteristically-elongated rostrum fill a critical morphological and temporal gap in phytosaur evolution, indicating that the characteristic elongated rostrum of phytosaurs appeared subsequent to cranial and postcranial modifications associated with enhanced prey capture, predating that general trend of morphological evolution observed within Crocodyliformes. Additionally, Diandongosuchus supports that the clade was present across Pangea, suggesting early ecosystem exploration for Archosauriformes through nearshore environments and leading to ease of dispersal across the Tethys.
WOS标题词	Science & Technology
DOI	10.1038/srep46028
关键词[WOS]	CHINLE FORMATION ; SONSELA MEMBER ; ARCHOSAUR ; ORIGIN ; DIVERSIFICATION ; BIOCHRONOLOGY ; PSEUDOSUCHIA ; CROCODILIANS ; EXTINCTION ; DINOSAURS
收录类别	SCI
语种	英语
项目资助者	National Natural Science Foundation of China(NNSFC-41172027) ; Canadian Museum of Nature(CMN-RCP09) ; Department of Geosciences at Virginia Tech ; Virginia Tech Open Access Subvention Fund
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000425889100001
出版者	NATURE PUBLISHING GROUP
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/8736
专题	中国科学院古脊椎动物与古人类研究所
通讯作者	Stocker, Michelle R.
作者单位	1.Virginia Polytech Inst & State Univ, Dept Geosci, 4044 Derring Hall, Blacksburg, VA 24061 USA 2.Zhejiang Museum Nat Hist, 6 Westlake Culture Sq, Hangzhou 310014, Zhejiang, Peoples R China 3.Canadian Museum Nat, POB 3443,Stn D, Ottawa, ON K1P 6P4, Canada 4.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Lab Evolutionary Systemat Vertebrates, POB 643, Beijing 100044, Peoples R China
推荐引用方式 GB/T 7714	Stocker, Michelle R.,Zhao, Li-Jun,Nesbitt, Sterling J.,et al. A Short-Snouted, Middle Triassic Phytosaur and its Implications for the Morphological Evolution and Biogeography of Phytosauria[J]. SCIENTIFIC REPORTS,2017,7(1):1-9.
APA	Stocker, Michelle R.,Zhao, Li-Jun,Nesbitt, Sterling J.,Wu, Xiao-Chun,&Li, Chun.(2017).A Short-Snouted, Middle Triassic Phytosaur and its Implications for the Morphological Evolution and Biogeography of Phytosauria.SCIENTIFIC REPORTS,7(1),1-9.
MLA	Stocker, Michelle R.,et al."A Short-Snouted, Middle Triassic Phytosaur and its Implications for the Morphological Evolution and Biogeography of Phytosauria".SCIENTIFIC REPORTS 7.1(2017):1-9.

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