KMS Institute of Vertebrate Paleontology and Paleoanthropology
| A possible brachiosaurid (Dinosauria, Sauropoda) from the mid-Cretaceous of northeastern China | |
Liao, Chun-Chi1,2,3; Moore, Andrew4; Jin, Changzhu1,2; Yang, Tzu-Ruei1,2; Shibata, Masateru5,6; Jin, Feng7,8,9; Wang, Bing7,8,9; Jin, Dongchun7,8,9; Guo, Yu10; Xu, Xing1,2
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| 2021-08-20 | |
| 发表期刊 | PEERJ
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| ISSN | 2167-8359 |
| 卷号 | 9期号:0页码:35 |
| 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. |
| 关键词 | Albian-Cenomanian Early cretaceous Brachiosauridae Paleobiogeography Cranial evolution Longshan fauna Longjing formation |
| DOI | 10.7717/peerj.11957 |
| 关键词[WOS] | PHYLOGENETIC AFFINITIES ; EARLY EVOLUTION ; SAURISCHIA ; TITANOSAUR ; ASIA ; REDESCRIPTION ; PATAGONIA ; PROVINCE ; NEUQUEN ; SKULL |
| 收录类别 | SCI |
| 语种 | 英语 |
| 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 |
| WOS类目 | Multidisciplinary Sciences |
| WOS记录号 | WOS:000687209400001 |
| 出版者 | PEERJ INC |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.205/handle/311034/18958 |
| 专题 | 中科院古脊椎所（2000年以后） |
| 通讯作者 | Moore, Andrew; Xu, Xing |
| 作者单位 | 1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing, Peoples R China 2.CAS Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China 4.SUNY Stony Brook, Dept Anat Sci, Renaissance Sch Med, Stony Brook, NY 11794 USA 5.Fukui Prefectural Dinosaur Museum, Fukui, Japan 6.Fukui Prefectural Univ, Inst Dinosaur Res, Fukui, Japan 7.Yanji Municipal Bur Land & Resources, Yanji, Peoples R China 8.Yanji Paleontol Res Ctr, Yanji, Peoples R China 9.Yanji Dinosaur Museum, Yanji, Peoples R China 10.Geol Museum China, 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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