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A new titanosauriform sauropod with an unusual tail from the Lower Cretaceous of northeastern China

文献类型：期刊论文

作者Mo, Jinyou1,7; Ma, Feimin6; Yu, Yilun4,5; Xu, Xing2,3,4
刊名CRETACEOUS RESEARCH
出版日期2023-04-01
卷号144页码:21
关键词Titanosauriformes Lower Cretaceous Yixian Formation Jehol Group Liaoning Province
ISSN号0195-6671
DOI10.1016/j.cretres.2022.105449
通讯作者Mo, Jinyou(jinyoumo@163.com)
英文摘要A new titanosauriform sauropod, Ruixinia zhangi gen. et sp. nov., is described. It was recovered from the Lower Cretaceous Yixian Formation of Liaoning Province, northeastern China. Ruixinia is characterized by a unique combination of characters, including the following autapomorphies: distinct foramina present at the anterodorsal corner of the pleurocoels of the mid-posterior dorsals; anterior caudal neural spines bifid; anterior caudal neural spines with projecting subtriangular processes on the anterior margins of the neural spines; distinct grooves present on the lateral surface of neural arches in Caudals 2-12, just dorsal to the base of the caudal ribs; a transition point present between Caudal 22 and Caudal 23 with Caudals 1-22 much larger than more posterior caudals in size; distalmost six caudals fused; Chevron 18 with a bifurcated posterior process; Chevron 20 approximately pentagonal in lateral view; Chevrons 23-36 plank-shaped and unfused distally; lateral bulge developed on the lateral surface of the posterior lobe of the ilium; posterior margin of the tibial shaft strongly convex. Phylogenetic analysis places Ruixinia within the Titanosauriformes. The new find increases the diversity of early-branching Titanosauriformes in China and highlights the tail morphological diversity within this clade.(c) 2022 Elsevier Ltd. All rights reserved.
WOS关键词LIAONING PROVINCE ; PHUWIANGOSAURUS-SIRINDHORNAE ; BASAL TITANOSAURIFORM ; FEATHERED-DINOSAUR ; EARLY EVOLUTION ; PHYLOGENY ; GUANGXI ; YIXIAN ; GENUS ; AGE
资助项目Natural Science Foundation of China[42288201] ; International Partnership Program of Chinese Academy of Sciences[132311KYSB20180016]
WOS研究方向Geology ; Paleontology
语种英语
WOS记录号WOS:000919840500001
出版者ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
资助机构Natural Science Foundation of China ; International Partnership Program of Chinese Academy of Sciences
源URL[http://119.78.100.205/handle/311034/22239]  
专题中国科学院古脊椎动物与古人类研究所
通讯作者Mo, Jinyou
作者单位1.Nat Hist Museum Guangxi Zhuang Autonomous Reg, Nanning 530012, Peoples R China
2.Shenyang Normal Univ, Paleontol Museum Liaoning, 253 North Huanghe St, Shenyang 110034, Peoples R China
3.Yunnan Univ, Ctr Vertebrate Evolutionary Biol, Kunming 650091, Peoples R China
4.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
6.Inner Mongolia Museum Nat Hist, Hothot 010000, Peoples R China
7.Nat Hist Museum Guangxi, Nanning 530012, Peoples R China
推荐引用方式
GB/T 7714		 Mo, Jinyou,Ma, Feimin,Yu, Yilun,et al. A new titanosauriform sauropod with an unusual tail from the Lower Cretaceous of northeastern China[J]. CRETACEOUS RESEARCH,2023,144:21.
APA Mo, Jinyou,Ma, Feimin,Yu, Yilun,&Xu, Xing.(2023).A new titanosauriform sauropod with an unusual tail from the Lower Cretaceous of northeastern China.CRETACEOUS RESEARCH,144,21.
MLA Mo, Jinyou,et al."A new titanosauriform sauropod with an unusual tail from the Lower Cretaceous of northeastern China".CRETACEOUS RESEARCH 144(2023):21.

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来源：古脊椎动物与古人类研究所

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