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

doi:10.1080/14772019.2025.2509637

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	A new borioteiioid lizard with large caniniform tooth from the Upper Cretaceous of South China
	Wang, Mengli 1,2; Dong, Liping 3; Yu, Juan 4; Lou, Fasheng 5; Qiu, Wenjiang 6; Han, Fenglu1
	2025-12-31
发表期刊	JOURNAL OF SYSTEMATIC PALAEONTOLOGY
ISSN	1477-2019
卷号	23 期号:1 页码:14
通讯作者	Han, Fenglu(hanfl@cug.edu.cn)
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
关键词	lizard Boreoteiioidea caniniform tooth Cretaceous China
DOI	10.1080/14772019.2025.2509637
关键词[WOS]	SQUAMATA ; PERSPECTIVES ; SYSTEMATICS ; EXTINCTION ; DENTITION ; REPTILIA ; GANZHOU ; BASIN ; DIET
收录类别	SCI
语种	英语
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]
项目资助者	National Natural Science Foundation of China
WOS研究方向	Evolutionary Biology ; Paleontology
WOS类目	Evolutionary Biology ; Paleontology
WOS记录号	WOS:001511971100001
出版者	TAYLOR & FRANCIS LTD
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/24509
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.