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Sexual dimorphism in perissodactyl rhinocerotid Chilotherium wimani from the late Miocene of the Linxia Basin (Gansu, China)

文献类型：期刊论文

作者Chen, Shaokun1,2; Deng, Tao2; Hou, Sukuan2; Shi, Qinqin2; Pang, Libo2; chenshaokun_ivpp@yahoo.com.cn
刊名ACTA PALAEONTOLOGICA POLONICA
出版日期2010-12-01
卷号55期号:4页码:587-597
关键词Mammalia Perissodactyla Chilotherium Wimani Sexual Dimorphism Statistics Late Miocene China
ISSN号0567-7920
文献子类Article
英文摘要Sexual dimorphism is reviewed and described in adult skulls of Chilotherium wimani from the Linxia Basin. Via the analysis and comparison, several very significant sexually dimorphic features are recognized. Tusks (i2), symphysis and occipital surface are larger in males. Sexual dimorphism in the mandible is significant. The anterior mandibular morphology is more sexually dimorphic than the posterior part. The most clearly dimorphic character is i2 length, and this is consistent with intrasexual competition where males invest large amounts of energy jousting with each other. The molar length, the height and the area of the occipital surface are correlated with body mass, and body mass sexual dimorphism is compared. Society behavior and paleoecology of C. wimani are different from most extinct or extant rhinos. M/F ratio indicates that the mortality of young males is higher than females. According to the suite of dimorphic features of the skull of C. wimani, the tentative sex discriminant functions are set up in order to identify the gender of the skulls.
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WOS关键词DEMOGRAPHY ; SOCIALITY ; MORTALITY ; MAMMALIA ; RHINOS ; SKULL
WOS研究方向Paleontology
语种英语
WOS记录号WOS:000286085100003
公开日期2013-11-27
源URL[http://119.78.100.205/handle/311034/4492]  
专题古脊椎动物与古人类研究所_图书馆1
古脊椎动物与古人类研究所_古哺乳动物研究室
通讯作者chenshaokun_ivpp@yahoo.com.cn
作者单位1.China Three Gorges Museum, Chongqing Gorges Inst Paleoanthropol 3, Chongqing 400015, Peoples R China
2.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China
推荐引用方式
GB/T 7714		 Chen, Shaokun,Deng, Tao,Hou, Sukuan,et al. Sexual dimorphism in perissodactyl rhinocerotid Chilotherium wimani from the late Miocene of the Linxia Basin (Gansu, China)[J]. ACTA PALAEONTOLOGICA POLONICA,2010,55(4):587-597.
APA Chen, Shaokun,Deng, Tao,Hou, Sukuan,Shi, Qinqin,Pang, Libo,&chenshaokun_ivpp@yahoo.com.cn.(2010).Sexual dimorphism in perissodactyl rhinocerotid Chilotherium wimani from the late Miocene of the Linxia Basin (Gansu, China).ACTA PALAEONTOLOGICA POLONICA,55(4),587-597.
MLA Chen, Shaokun,et al."Sexual dimorphism in perissodactyl rhinocerotid Chilotherium wimani from the late Miocene of the Linxia Basin (Gansu, China)".ACTA PALAEONTOLOGICA POLONICA 55.4(2010):587-597.

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来源：古脊椎动物与古人类研究所

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