| 宁夏同心中中新世三种植食性哺乳动物牙齿碳同位素分析 |
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| 引用本文： | 魏明瑞,郭建崴. 宁夏同心中中新世三种植食性哺乳动物牙齿碳同位素分析[J]. 古脊椎动物学报, 2002, 40(4): 300-304 |
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| 作者姓名： | 魏明瑞 郭建崴 |
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| 作者单位： | 1. 北京自然博物馆,北京,100050
2. 中国科学院古脊椎动物与古人类研究所,北京,100044 |
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| 基金项目： | 北京市自然科学基金项目 (编号 :5 992 0 0 9)，国家自然科学基金项目 (编号 :4 9972 0 1 2 )资助 |
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| 摘 要： | 宁夏同心中中新世Platybelodondanovicheni,Amebelodontobieni和Stephanocemasthomsoni化石牙齿的δ1 3C值为 - 8.7‰～ - 1 0 .3‰ ,说明这些动物可能以δ1 3C值为 - 2 0 .7‰～ - 2 5 .3‰的C3植物作为主要食物来源。根据齿冠高低与取食嫩叶或硬草的关系 ,这三种动物的低冠齿所指示的食性支持了牙齿釉质的碳稳定同位素所指示的食性。
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| 关 键 词： | 宁夏同心 中中新世 哺乳动物 δ13C值 C3植物 |
| 修稿时间： | 2001-10-18 |
THE STABLE CARBON ISOTOPES IN THE TOOTH ENAMEL OF THREE SPECIES OF THE MIDDLE MIOCENE FOSSIL HERBIVOROUS MAMMALS FROM TONGXIN, NINGXIA, CHINA |
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| WEI Ming-Rui GUO Jian-Wei. THE STABLE CARBON ISOTOPES IN THE TOOTH ENAMEL OF THREE SPECIES OF THE MIDDLE MIOCENE FOSSIL HERBIVOROUS MAMMALS FROM TONGXIN, NINGXIA, CHINA[J]. Vertebrata Palasiatica, 2002, 40(4): 300-304 |
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| Authors: | WEI Ming-Rui GUO Jian-Wei |
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| Affiliation: | WEI Ming-Rui 1 GUO Jian-Wei 2 |
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| Abstract: | The δ 13 C values of fossil tooth enamel of middle Miocene Platybelodon danovi cheni, Amebelodon tobieni and Stephanocemas thomsoni from Tongxin, Ningxia ranged from -8.7‰ to -10.3‰, suggesting that these herbivorous mammals were feeding predominantly on C 3 plants. The low-crowned dentitions of these animals indicated that they were browsers. And this supported the diets suggested by stable carbon isotopic compositions of tooth enamel. |
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| Keywords: | Tongxin Ningxia Middle Miocene mammals δ 13 C values C 3 plants |
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