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A possible brachiosaurid (Dinosauria, Sauropoda) from the mid-Cretaceous of northeastern China

文献类型：期刊论文

作者Liao, Chun-Chi8,9,10; Moore, Andrew7; Jin, Changzhu9,10; Yang, Tzu-Ruei9,10; Shibata, Masateru5,6; Jin, Feng2,3,4; Wang, Bing2,3,4; Jin, Dongchun2,3,4; Guo, Yu1; Xu, Xing9,10
刊名PEERJ
出版日期2021-08-20
卷号9期号:0页码:35
关键词Albian-Cenomanian Early cretaceous Brachiosauridae Paleobiogeography Cranial evolution Longshan fauna Longjing formation
ISSN号2167-8359
DOI10.7717/peerj.11957
英文摘要Brachiosauridae is a lineage of titanosauriform sauropods that includes some of the most iconic non-avian dinosaurs. Undisputed brachiosaurid fossils are known from the Late Jurassic through the Early Cretaceous of North America, Africa, and Europe, but proposed occurrences outside this range have proven controversial. Despite occasional suggestions that brachiosaurids dispersed into Asia, to date no fossils have provided convincing evidence for a pan-Laurasian distribution for the clade, and the failure to discover brachiosaurid fossils in the well-sampled sauropod-bearing horizons of the Early Cretaceous of Asia has been taken to evidence their genuine absence from the continent. Here we report on an isolated sauropod maxilla from the middle Cretaceous (Albian-Cenomanian) Longjing Formation of the Yanji basin of northeast China. Although the specimen preserves limited morphological information, it exhibits axially twisted dentition, a shared derived trait otherwise known only in brachiosaurids. Referral of the specimen to the Brachiosauridae receives support from phylogenetic analysis under both equal and implied weights parsimony, providing the most convincing evidence to date that brachiosaurids dispersed into Asia at some point in their evolutionary history. Inclusion in our phylogenetic analyses of an isolated sauropod dentary from the same site, for which an association with the maxilla is possible but uncertain, does not substantively alter these results. We consider several paleobiogeographic scenarios that could account for the occurrence of a middle Cretaceous Asian brachiosaurid, including dispersal from either North America or Europe during the Early Cretaceous. The identification of a brachiosaurid in the Longshan fauna, and the paleobiogeographic histories that could account for its presence there, are hypotheses that can be tested with continued study and excavation of fossils from the Longjing Formation.
WOS关键词PHYLOGENETIC AFFINITIES ; EARLY EVOLUTION ; SAURISCHIA ; TITANOSAUR ; ASIA ; REDESCRIPTION ; PATAGONIA ; PROVINCE ; NEUQUEN ; SKULL
资助项目National Natural Science Foundation of China[41688103] ; University of Chinese Academy of Sciences (UCAS) ; Yanji Dinosaur Research Center
WOS研究方向Science & Technology - Other Topics
语种英语
WOS记录号WOS:000687209400001
出版者PEERJ INC
源URL[http://119.78.100.205/handle/311034/18957]  
专题古脊椎动物与古人类研究所_图书馆1
通讯作者Moore, Andrew; Xu, Xing
作者单位1.Geol Museum China, Beijing, Peoples R China
2.Yanji Dinosaur Museum, Yanji, Peoples R China
3.Yanji Paleontol Res Ctr, Yanji, Peoples R China
4.Yanji Municipal Bur Land & Resources, Yanji, Peoples R China
5.Fukui Prefectural Univ, Inst Dinosaur Res, Fukui, Japan
6.Fukui Prefectural Dinosaur Museum, Fukui, Japan
7.SUNY Stony Brook, Dept Anat Sci, Renaissance Sch Med, Stony Brook, NY 11794 USA
8.Univ Chinese Acad Sci, Beijing, Peoples R China
9.CAS Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China
10.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Liao, Chun-Chi,Moore, Andrew,Jin, Changzhu,et al. A possible brachiosaurid (Dinosauria, Sauropoda) from the mid-Cretaceous of northeastern China[J]. PEERJ,2021,9(0):35.
APA Liao, Chun-Chi.,Moore, Andrew.,Jin, Changzhu.,Yang, Tzu-Ruei.,Shibata, Masateru.,...&Xu, Xing.(2021).A possible brachiosaurid (Dinosauria, Sauropoda) from the mid-Cretaceous of northeastern China.PEERJ,9(0),35.
MLA Liao, Chun-Chi,et al."A possible brachiosaurid (Dinosauria, Sauropoda) from the mid-Cretaceous of northeastern China".PEERJ 9.0(2021):35.

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