Tooth wear difference between the Yuanmou hominoid and Lufengpithecus

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	Tooth wear difference between the Yuanmou hominoid and Lufengpithecus
	Liu, W ; Zheng, L ; Liu, W (reprint author), Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, POB 643, Beijing 100044, Peoples R China.
	2005-04-01
发表期刊	INTERNATIONAL JOURNAL OF PRIMATOLOGY
ISSN	0164-0291
卷号	26 期号:2 页码:491-506
文章类型	Article
摘要	The Late Miocene hominoids recovered from Lufeng (Lufengpithecus) and Yuanmou of Yunnan Province, China, are among the most numerous hominoid fossils in Eurasia. They have yielded critical evidence for the evolutionary history, biogeography and paleobiology of Miocene hominoids. We examined and compared the wear pattern and differences of 804 molars of the Yuanmou hominoid and Lufengpithecus. Our results indicate that both the upper and lower molars of the Yuanmou hominoids were more heavily worn than those of Lufengpithecus. The wear patterns of the individual molars between the Yuanmou hominoid and Lufengpithecus also are different. The heaviest wear of lower molars of the Yuanmou hominoid occur in M-2, followed by M-1 and M-3. In Lufengpithecus, M-1 and M-3 were more heavily worn than M-2. There are differences in wear between the upper and lower molars for the two hominoids. Among the various factors related to tooth wear, we suggest that the main reason for the tooth wear differences between the Yuanmou hominoid and Lufengpithecus may be that they had different diets. More soft dietary items like leaves and berries were probably consumed by Lufengpithecus, and the Yuanmou hominoid may mainly have feed on harder or frugivorous diets. This result complements findings from previous studies of tooth size proportion, and the development of lower molar shearing crests in the 2 samples. Enamel thickness, living environment, behavior patterns, and population structure also might account for dental wear differences between the Yuanmou hominoid and Lufengpithecus.; The Late Miocene hominoids recovered from Lufeng (Lufengpithecus) and Yuanmou of Yunnan Province, China, are among the most numerous hominoid fossils in Eurasia. They have yielded critical evidence for the evolutionary history, biogeography and paleobiology of Miocene hominoids. We examined and compared the wear pattern and differences of 804 molars of the Yuanmou hominoid and Lufengpithecus. Our results indicate that both the upper and lower molars of the Yuanmou hominoids were more heavily worn than those of Lufengpithecus. The wear patterns of the individual molars between the Yuanmou hominoid and Lufengpithecus also are different. The heaviest wear of lower molars of the Yuanmou hominoid occur in M-2, followed by M-1 and M-3. In Lufengpithecus, M-1 and M-3 were more heavily worn than M-2. There are differences in wear between the upper and lower molars for the two hominoids. Among the various factors related to tooth wear, we suggest that the main reason for the tooth wear differences between the Yuanmou hominoid and Lufengpithecus may be that they had different diets. More soft dietary items like leaves and berries were probably consumed by Lufengpithecus, and the Yuanmou hominoid may mainly have feed on harder or frugivorous diets. This result complements findings from previous studies of tooth size proportion, and the development of lower molar shearing crests in the 2 samples. Enamel thickness, living environment, behavior patterns, and population structure also might account for dental wear differences between the Yuanmou hominoid and Lufengpithecus.
关键词	Yuanmou Hominoid Lufengpithecus Tooth Wear
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
URL	查看原文
关键词[WOS]	ENAMEL THICKNESS ; DIET ; AUSTRALOPITHECUS ; EVOLUTION ; CHINA
收录类别	SCI
语种	英语
WOS研究方向	Zoology
WOS类目	Zoology
WOS记录号	WOS:000228013700012
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/3563
专题	中科院古脊椎所（2000年以后）
通讯作者	Liu, W (reprint author), Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, POB 643, Beijing 100044, Peoples R China.
作者单位	1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 2.Prov Inst Archaeol, Kunming, Peoples R China
推荐引用方式 GB/T 7714	Liu, W,Zheng, L,Liu, W . Tooth wear difference between the Yuanmou hominoid and Lufengpithecus[J]. INTERNATIONAL JOURNAL OF PRIMATOLOGY,2005,26(2):491-506.
APA	Liu, W,Zheng, L,&Liu, W .(2005).Tooth wear difference between the Yuanmou hominoid and Lufengpithecus.INTERNATIONAL JOURNAL OF PRIMATOLOGY,26(2),491-506.
MLA	Liu, W,et al."Tooth wear difference between the Yuanmou hominoid and Lufengpithecus".INTERNATIONAL JOURNAL OF PRIMATOLOGY 26.2(2005):491-506.

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