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A new sauropodiform dinosaur with a 'sauropodan' skull from the Lower Jurassic Lufeng Formation of Yunnan Province, China.
Sci Rep. 2018 09 07; 8(1):13464.SR

Abstract

The Early Jurassic Lufeng Formation of Yunnan Province in southwestern China is one of the best fossil localities in the world for understanding the early radiation of sauropodomorph dinosaurs. It has yielded a rich assemblage of complete and three-dimensionally preserved skeletons of herbivorous dinosaurs that provide crucial morphological information for systematic and evolutionary studies. Here we describe a new taxon, Yizhousaurus sunae gen. et sp. nov., represented by a nearly complete skeleton with an exquisitely preserved skull and mandible. Yizhousaurus is distinguished from other non-sauropodan sauropodomorphs by a unique combination of plesiomorphic and apomorphic features, which increases our understanding of the anatomical variation on the relatively conservative 'prosauropod' cranial plan. Phylogenetic analysis resolves Yizhousaurus as a sauropodiform, showcasing a mosaic character suite combining plesiomorphic states in the postcranial skeleton with some more 'sauropodan'-like features in the skull. Furthermore, Yizhousaurus is placed closer to the base of Sauropoda than other non-sauropodan sauropodomorphs currently known from the Lufeng Formation, adding another taxon to enrich the Lower Jurassic Lufeng dinosaur fauna.

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Authors+Show Affiliations

Zhang QN
Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, 142 Xizhimenwai Street, Beijing, 100044, P. R. China. zhangqiannan@ivpp.ac.cn. CAS Center for Excellence in Life and Paleoenvironment, 142 Xizhimenwai Street, Beijing, 100044, P. R. China. zhangqiannan@ivpp.ac.cn. University of Chinese Academy of Sciences, 19A Yüquan Road, Beijing, 100049, P. R. China. zhangqiannan@ivpp.ac.cn.
You HL
Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, 142 Xizhimenwai Street, Beijing, 100044, P. R. China. youhailu@ivpp.ac.cn. CAS Center for Excellence in Life and Paleoenvironment, 142 Xizhimenwai Street, Beijing, 100044, P. R. China. youhailu@ivpp.ac.cn. University of Chinese Academy of Sciences, 19A Yüquan Road, Beijing, 100049, P. R. China. youhailu@ivpp.ac.cn.
Wang T
Bureau of Land and Resources of Lufeng County, Yunnan Province, 651299, P. R. China.
Chatterjee S
Museum of Texas Tech University, Lubbock, TX, 79409, USA.

MeSH

AnimalsChinaDinosaursFossilsSkull

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

30194381

Citation

Zhang, Qian-Nan, et al. "A New Sauropodiform Dinosaur With a 'sauropodan' Skull From the Lower Jurassic Lufeng Formation of Yunnan Province, China." Scientific Reports, vol. 8, no. 1, 2018, p. 13464.
Zhang QN, You HL, Wang T, et al. A new sauropodiform dinosaur with a 'sauropodan' skull from the Lower Jurassic Lufeng Formation of Yunnan Province, China. Sci Rep. 2018;8(1):13464.
Zhang, Q. N., You, H. L., Wang, T., & Chatterjee, S. (2018). A new sauropodiform dinosaur with a 'sauropodan' skull from the Lower Jurassic Lufeng Formation of Yunnan Province, China. Scientific Reports, 8(1), 13464. https://doi.org/10.1038/s41598-018-31874-9
Zhang QN, et al. A New Sauropodiform Dinosaur With a 'sauropodan' Skull From the Lower Jurassic Lufeng Formation of Yunnan Province, China. Sci Rep. 2018 09 7;8(1):13464. PubMed PMID: 30194381.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - A new sauropodiform dinosaur with a 'sauropodan' skull from the Lower Jurassic Lufeng Formation of Yunnan Province, China. AU - Zhang,Qian-Nan, AU - You,Hai-Lu, AU - Wang,Tao, AU - Chatterjee,Sankar, Y1 - 2018/09/07/ PY - 2017/12/15/received PY - 2018/08/21/accepted PY - 2018/9/9/entrez PY - 2018/9/9/pubmed PY - 2019/11/2/medline SP - 13464 EP - 13464 JF - Scientific reports JO - Sci Rep VL - 8 IS - 1 N2 - The Early Jurassic Lufeng Formation of Yunnan Province in southwestern China is one of the best fossil localities in the world for understanding the early radiation of sauropodomorph dinosaurs. It has yielded a rich assemblage of complete and three-dimensionally preserved skeletons of herbivorous dinosaurs that provide crucial morphological information for systematic and evolutionary studies. Here we describe a new taxon, Yizhousaurus sunae gen. et sp. nov., represented by a nearly complete skeleton with an exquisitely preserved skull and mandible. Yizhousaurus is distinguished from other non-sauropodan sauropodomorphs by a unique combination of plesiomorphic and apomorphic features, which increases our understanding of the anatomical variation on the relatively conservative 'prosauropod' cranial plan. Phylogenetic analysis resolves Yizhousaurus as a sauropodiform, showcasing a mosaic character suite combining plesiomorphic states in the postcranial skeleton with some more 'sauropodan'-like features in the skull. Furthermore, Yizhousaurus is placed closer to the base of Sauropoda than other non-sauropodan sauropodomorphs currently known from the Lufeng Formation, adding another taxon to enrich the Lower Jurassic Lufeng dinosaur fauna. SN - 2045-2322 UR - https://www.unboundmedicine.com/medline/citation/30194381/A_new_sauropodiform_dinosaur_with_a_'sauropodan'_skull_from_the_Lower_Jurassic_Lufeng_Formation_of_Yunnan_Province_China_ DB - PRIME DP - Unbound Medicine ER -