New fossils of Late Pleistocene Sus scrofa from Yangjiawan Cave 2, Jiangxi, China

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	New fossils of Late Pleistocene Sus scrofa from Yangjiawan Cave 2, Jiangxi, China
其他题名	江西萍乡杨家湾2号洞晚更新世野猪化石研究
	Sun Jijia 1; Zhang Bei 1; Chen Xi2 ; Deng Li 3; Wen Jun 3; Tong Haowen1
	2021
发表期刊	VERTEBRATA PALASIATICA
ISSN	1000-3118
卷号	59 期号:1 页码:64
摘要	The YJW (Yangjiawan) Cave 2 of Pingxiang in Jiangxi Province is a karst cave that developed in the Permian limestone of the Changxing Formation, which is filled with clay and grit of Late Pleistocene age. Six excavations have been conducted at the site since 2015. More than ten thousand mammalian fossils have been unearthed, and the wild boar fossils account for approximately 49%, which represents the richest wild boar fossil tooth collection of Pleistocene age in southern China. This study focuses on the studies of the canine teeth and the third molars, and mainly compares fossils of Sus peii and S. xiaozhu in South China and the data of extant S. scrofa respectively in dental morphology and odontometric data analyses which includes scatter plot analysis, regression analysis, coefficient of variation analysis and linear discriminant analysis. The typical scrofic type of the male's lower canine teeth confirmed the identification of the suid fossils from YJW Cave 2 as S. scrofa. Although the male's lower canines, the M2s and m~3s, are among the most variable teeth in sizes, they stay in the ranges of S. scrofa; furthermore, the scatterplots of both the upper and lower third molars form two distinct clusters respectively, which can probably be attributed to sexual dimorphism rather than resulting from a mixture of different suid species. The post-Early Pleistocene suid fauna in southern China is almost only composed of S. scrofa, which is quite different from the adjacent Southeast Asia where the suid fauna is quite taxonomically diversified and dominated by the verrucosic type.
关键词	江西萍乡杨家湾2号洞晚更新世野猪牙齿种内变异性双型 Yangjiawan Cave 2 Pingxiang Jiangxi Late Pleistocene Sus scrofa teeth intraspecific variation sexual dimorphism
语种	英语
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/22386
专题	中国科学院古脊椎动物与古人类研究所
作者单位	1.中国科学院古脊椎动物与古人类研究所 2.南京师范大学 3.Pingxiang Museum Pingxiang
第一作者单位	中国科学院古脊椎动物与古人类研究所
推荐引用方式 GB/T 7714	Sun Jijia,Zhang Bei,Chen Xi,et al. New fossils of Late Pleistocene Sus scrofa from Yangjiawan Cave 2, Jiangxi, China[J]. VERTEBRATA PALASIATICA,2021,59(1):64.
APA	Sun Jijia,Zhang Bei,Chen Xi,Deng Li,Wen Jun,&Tong Haowen.(2021).New fossils of Late Pleistocene Sus scrofa from Yangjiawan Cave 2, Jiangxi, China.VERTEBRATA PALASIATICA,59(1),64.
MLA	Sun Jijia,et al."New fossils of Late Pleistocene Sus scrofa from Yangjiawan Cave 2, Jiangxi, China".VERTEBRATA PALASIATICA 59.1(2021):64.

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