Re-assessment of the Late Jurassic eusauropod dinosaur Hudiesaurus sinojapanorum Dong, 1997, from the Turpan Basin, China, and the evolution of hyper-robust antebrachia in sauropods
文献类型：期刊论文
| 作者 | Upchurch, Paul4; Mannion, Philip D.4; Xu, Xing2,3 ; Barrett, Paul M.1,4
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| 刊名 | JOURNAL OF VERTEBRATE PALEONTOLOGY
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| 出版日期 | 2021-07-04 |
| 页码 | 31 |
| ISSN号 | 0272-4634 |
| DOI | 10.1080/02724634.2021.1994414 |
| 通讯作者 | Upchurch, Paul(p.upchurch@ucl.ac.uk) |
| 英文摘要 | Hudiesaurus sinojapanorum is a Late Jurassic sauropod from northwestern China that was erected on the basis of a cervicodorsal vertebra, four teeth, and a nearly complete forelimb. However, re-evaluation of this material, and comparisons with other taxa, indicate that there are few grounds for regarding these specimens as congeneric. Consequently, although we retain the vertebra as the holotype specimen of Hudiesaurus, the forelimb is assigned to a new taxon-Rhomaleopakhus turpanensis, gen. et sp. nov. The teeth previously referred to Hudiesaurus are poorly preserved but resemble those of several other 'core Mamenchisaurus-like taxa' (CMTs) from East Asia, such as Mamenchisaurus sinocanadorum. Phylogenetic analyses confirm that Hudiesaurus is a CMT and the sister taxon of Xinjiangtitan. Despite some uniquely shared features, their large size, and close geographic provenance, Hudiesaurus and Xinjiangtitan are retained as distinct genera based on their stratigraphic separation and numerous anatomical differences. Rhomaleopakhus is also shown to be a CMT in all analyses, being most closely related to Chuanjiesaurus and Analong. We link the convergent evolution of robust antebrachia and an enlarged olecranon in CMTs, titanosaurs, and some ornithischians (e.g., ceratopsids) to a more flexed orientation of the forearm, an enhanced role for the forelimb in locomotion, and an anterior shift in the whole-body center of mass. CMTs and titanosaurs potentially converged on a feeding strategy in which the ability to increase browse height via bipedal rearing was sacrificed in return for more efficient locomotion that improved travel between patchily distributed food sources. |
| WOS关键词 | PHYLOGENETIC-RELATIONSHIPS ; JUNGGAR BASIN ; SALTASAURINE TITANOSAUR ; CRETACEOUS STRATA ; ANATOMY ; SAURISCHIA ; MORPHOLOGY ; PATAGONIA ; XINJIANG ; PROVINCE |
| 资助项目 | Royal Society ; Leverhulme Trust[RPG-129] ; National Geographic Waitt grant[W421-16] ; Royal Society University Research Fellowship[UF160216] ; Jurassic Foundation ; Departmental Investment Funds of the Natural History Museum, London ; National Natural Science Foundation of China[41688103] |
| WOS研究方向 | Paleontology |
| 语种 | 英语 |
| WOS记录号 | WOS:000729689000001 |
| 出版者 | TAYLOR & FRANCIS INC |
| 资助机构 | Royal Society ; Leverhulme Trust ; National Geographic Waitt grant ; Royal Society University Research Fellowship ; Jurassic Foundation ; Departmental Investment Funds of the Natural History Museum, London ; National Natural Science Foundation of China |
| 源URL | [http://119.78.100.205/handle/311034/19115]  |
| 专题 | 古脊椎动物与古人类研究所_图书馆1 |
| 通讯作者 | Upchurch, Paul |
| 作者单位 | 1.Nat Hist Museum, Dept Earth Sci, Cromwell Rd, London SW7 5BD, England 2.CAS Ctr Excellence Life & Paleoenvironm, Beijing 100044, Peoples R China 3.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Evolutionary Systemat Vertebrates, Beijing 100044, Peoples R China 4.UCL, Dept Earth Sci, Gower St, London WC1E 6BT, England |
| 推荐引用方式 GB/T 7714 | Upchurch, Paul,Mannion, Philip D.,Xu, Xing,et al. Re-assessment of the Late Jurassic eusauropod dinosaur Hudiesaurus sinojapanorum Dong, 1997, from the Turpan Basin, China, and the evolution of hyper-robust antebrachia in sauropods[J]. JOURNAL OF VERTEBRATE PALEONTOLOGY,2021:31. |
| APA | Upchurch, Paul,Mannion, Philip D.,Xu, Xing,&Barrett, Paul M..(2021).Re-assessment of the Late Jurassic eusauropod dinosaur Hudiesaurus sinojapanorum Dong, 1997, from the Turpan Basin, China, and the evolution of hyper-robust antebrachia in sauropods.JOURNAL OF VERTEBRATE PALEONTOLOGY,31. |
| MLA | Upchurch, Paul,et al."Re-assessment of the Late Jurassic eusauropod dinosaur Hudiesaurus sinojapanorum Dong, 1997, from the Turpan Basin, China, and the evolution of hyper-robust antebrachia in sauropods".JOURNAL OF VERTEBRATE PALEONTOLOGY (2021):31. |
入库方式： OAI收割
来源：古脊椎动物与古人类研究所
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