KMS Institute of Vertebrate Paleontology and Paleoanthropology
| The first record of the late Miocene Hyaenictitherium hyaenoides Zdansky (Carnivora : Hyaenidae) in Inner Mongolia and an evaluation of the genus | |
| Tseng, Zhijie J.; Wang, Xiaoming; Tseng, ZJ (reprint author), Museum Hist Nat, Dept Vertebrate Paleontol, 900 Exposit Blvd, Los Angeles, CA 90007 USA. | |
| 2007-09-12 | |
| 发表期刊 | JOURNAL OF VERTEBRATE PALEONTOLOGY
 |
| ISSN | 0272-4634 |
| 卷号 | 27期号:3页码:699-708 |
| 文章类型 | Article |
| 摘要 | New dental material of the hyaenid Hyaenictitherium hyaenoides Zdansky, 1924 from the late Miocene Baogeda U1a Formation in central Inner Mongolia is described. An evaluation of the morphological trends and spatial and temporal ranges of the genus Hyaenictitherium follows. The unworn isolated teeth described here represent a nearly complete set of dentition. Furthermore, the Baogeda U1a material is the eastern-most record of this genus, and the only hyaenid record in eastern Asia associated with a layer of basalt capping the fossil producing sediments. Previous studies 4 the capping basalt and associated small mammal fauna constrain the age of the Baogeda U1a hyaenid at 8-7 Ma. In addition to the Baogeda U1a material, other occurrences of the genus in eastern Asia include Gansu, Shanxi and Shaanxi provinces of northern China. Of the ten species currently thought to belong to the genus, two (If. intuberculatum and H. minimum) appear more primitive than the others. The rest seem to follow a morphological trend of increasing size and robustness of the teeth, as well as reduction of the trigonid of nil. This trend is observed roughly from H. wongi (MN9) to H. namaquensis (MN14). The genus appears to be a cursorial form and first appeared in western Eurasia in MN9. Subsequent range expansion occurred in northern Asia, Southern Asia, and in Africa from MN12 on. The observed phylogenetic and morphological gaps between H. namaquensis and H. minimum prevent a clear interpretation of Hyaenictitherium immigration into Africa.; New dental material of the hyaenid Hyaenictitherium hyaenoides Zdansky, 1924 from the late Miocene Baogeda U1a Formation in central Inner Mongolia is described. An evaluation of the morphological trends and spatial and temporal ranges of the genus Hyaenictitherium follows. The unworn isolated teeth described here represent a nearly complete set of dentition. Furthermore, the Baogeda U1a material is the eastern-most record of this genus, and the only hyaenid record in eastern Asia associated with a layer of basalt capping the fossil producing sediments. Previous studies 4 the capping basalt and associated small mammal fauna constrain the age of the Baogeda U1a hyaenid at 8-7 Ma. In addition to the Baogeda U1a material, other occurrences of the genus in eastern Asia include Gansu, Shanxi and Shaanxi provinces of northern China. Of the ten species currently thought to belong to the genus, two (If. intuberculatum and H. minimum) appear more primitive than the others. The rest seem to follow a morphological trend of increasing size and robustness of the teeth, as well as reduction of the trigonid of nil. This trend is observed roughly from H. wongi (MN9) to H. namaquensis (MN14). The genus appears to be a cursorial form and first appeared in western Eurasia in MN9. Subsequent range expansion occurred in northern Asia, Southern Asia, and in Africa from MN12 on. The observed phylogenetic and morphological gaps between H. namaquensis and H. minimum prevent a clear interpretation of Hyaenictitherium immigration into Africa. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| URL | 查看原文 |
| 关键词[WOS] | MAMMALIAN FAUNAS ; SEQUENCE ; CHINA |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Paleontology |
| WOS类目 | Paleontology |
| WOS记录号 | WOS:000249473900013 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.205/handle/311034/3321 |
| 专题 | 中科院古脊椎所（2000年以后） |
| 通讯作者 | Tseng, ZJ (reprint author), Museum Hist Nat, Dept Vertebrate Paleontol, 900 Exposit Blvd, Los Angeles, CA 90007 USA. |
| 作者单位 | 1.Museum Hist Nat, Dept Vertebrate Paleontol, Los Angeles, CA 90007 USA 2.Univ So Calif, Los Angeles, CA 90089 USA 3.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tseng, Zhijie J.,Wang, Xiaoming,Tseng, ZJ . The first record of the late Miocene Hyaenictitherium hyaenoides Zdansky (Carnivora : Hyaenidae) in Inner Mongolia and an evaluation of the genus[J]. JOURNAL OF VERTEBRATE PALEONTOLOGY,2007,27(3):699-708. |
| APA | Tseng, Zhijie J.,Wang, Xiaoming,&Tseng, ZJ .(2007).The first record of the late Miocene Hyaenictitherium hyaenoides Zdansky (Carnivora : Hyaenidae) in Inner Mongolia and an evaluation of the genus.JOURNAL OF VERTEBRATE PALEONTOLOGY,27(3),699-708. |
| MLA | Tseng, Zhijie J.,et al."The first record of the late Miocene Hyaenictitherium hyaenoides Zdansky (Carnivora : Hyaenidae) in Inner Mongolia and an evaluation of the genus".JOURNAL OF VERTEBRATE PALEONTOLOGY 27.3(2007):699-708. |
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