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A new borioteiioid lizard with large caniniform tooth from the Upper Cretaceous of South China

文献类型：期刊论文

作者Wang, Mengli1,2; Dong, Liping3; Yu, Juan4; Lou, Fasheng5; Qiu, Wenjiang6; Han, Fenglu1
刊名JOURNAL OF SYSTEMATIC PALAEONTOLOGY
出版日期2025-12-31
卷号23期号:1页码:14
关键词lizard Boreoteiioidea caniniform tooth Cretaceous China
ISSN号1477-2019
DOI10.1080/14772019.2025.2509637
通讯作者Han, Fenglu(hanfl@cug.edu.cn)
英文摘要Borioteiioidea (Polyglyphanodontia) is a group of lizards that were abundant in China and Mongolia during the Late Cretaceous. Two borioteiioid genera, Tianyusaurus and Yechilacerta, with complete lower temporal bars, have been reported from the Upper Cretaceous of South China. Here we report a new borioteiioid fossil lizard, Caninosaurus ganzhouensis gen. et sp. nov., based on an incomplete skull and mandible from the Upper Cretaceous Tangbian Formation of Ganzhou Basin, Jiangxi Province, South China. The new lizard differs from other Late Cretaceous lizards by possessing a unique combination of features, including nasal process of the premaxilla constricted at the base; elongated posterodorsal projection of the maxillary facial process; no articulation between the nasal and prefrontal; a prefrontal with a fossa on its lateral surface; elongated frontals with sculptured dorsal surface and a waisted orbital margin; tooth crowns with no denticles and cusps; and a large and caniniform fourth maxillary tooth. Phylogenetic analyses based on two recent data matrices both recover Caninosaurus within Borioteiioidea. In the unconstrained analyses, Caninosaurus is placed in a clade with Tianyusaurus and Yechilacerta. Caninosaurus is the third borioteiioid lizard discovered from the Upper Cretaceous of the Jiangxi Province, increasing the diversity of borioteiioid lizards found in eastern Asia. The small body size and possible omnivorous diet of Caninosaurus suggest it occupied a different ecological niche to Tianyusaurus and Yechilacerta. https://zoobank.org/urn:lsid:zoobank.org:pub:3F0B9E9D-E1FC-407D-8126-8ABBF63F8437
WOS关键词SQUAMATA ; PERSPECTIVES ; SYSTEMATICS ; EXTINCTION ; DENTITION ; REPTILIA ; GANZHOU ; BASIN ; DIET
资助项目National Natural Science Foundation of China[42288201] ; National Natural Science Foundation of China[42072031] ; National Natural Science Foundation of China[42372036]
WOS研究方向Evolutionary Biology ; Paleontology
语种英语
WOS记录号WOS:001511971100001
出版者TAYLOR & FRANCIS LTD
资助机构National Natural Science Foundation of China
源URL[http://119.78.100.205/handle/311034/24508]  
专题中国科学院古脊椎动物与古人类研究所
通讯作者Han, Fenglu
作者单位1.China Univ Geosci, Sch Earth Sci, Wuhan, Peoples R China
2.Xinjiang Univ Technol, Urumqi, Xinjiang, Peoples R China
3.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing, Peoples R China
4.Jiangxi Geol Museum, Nanchang, Peoples R China
5.Inst Jiangxi Geol Survey & Explorat Inst, Nanchang, Peoples R China
6.Jiangxi Geol Survey & Explorat Inst, Basic Geol Survey Inst, Nanchang, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Mengli,Dong, Liping,Yu, Juan,et al. A new borioteiioid lizard with large caniniform tooth from the Upper Cretaceous of South China[J]. JOURNAL OF SYSTEMATIC PALAEONTOLOGY,2025,23(1):14.
APA Wang, Mengli,Dong, Liping,Yu, Juan,Lou, Fasheng,Qiu, Wenjiang,&Han, Fenglu.(2025).A new borioteiioid lizard with large caniniform tooth from the Upper Cretaceous of South China.JOURNAL OF SYSTEMATIC PALAEONTOLOGY,23(1),14.
MLA Wang, Mengli,et al."A new borioteiioid lizard with large caniniform tooth from the Upper Cretaceous of South China".JOURNAL OF SYSTEMATIC PALAEONTOLOGY 23.1(2025):14.

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来源：古脊椎动物与古人类研究所

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