KMS Institute of Vertebrate Paleontology and Paleoanthropology
| Sinobaatar gen. nov.: First multituberculate from the Jehol Biota of Liaoning, Northeast China | |
Hu, YM; Wang, YQ ; Hu, YM (reprint author), Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 10044, Peoples R China.
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| 2002-06-01 | |
| 发表期刊 | CHINESE SCIENCE BULLETIN
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| ISSN | 1001-6538 |
| 卷号 | 47期号:11页码:933-+ |
| 文章类型 | Article |
| 摘要 | A multituberculate skeleton from the Lower Cretaceous Yixian Formation at Dawangzhangzi, Lingyuan City, Liaoning Province, Northeast China, provides new morphological information for early multituberculates. The specimen is the holotype of Sinobaatar lingyuanensis gen. et sp. nov. It has a narrow skull that lacks the superorbital crest or postorbital process. The dental formula is 3.?.5.2/1.0.3.2. The dental morphology, especially that of cheek teeth, of S. lingyuanensis is similar to that of Eobaatar, which places it in the family Eobaataridae. The postcranial skeleton of Sinobaatar is similar to that of other multituberculates. As in Holotheria, Metatarsal V of Sinobaatar articulates only with the cuboid and has no contact with the calcaneus, which probably represents the primitive condition of multituberculates. Nine carpals of Sinobaatar resemble those of Zhang-heotherium, except the centrale being larger than the trapezoid. The dental features of Sinobaatar show again that eobaatarids are obviously intermediate between Late Jurassic multituberculates and the later forms. Because eobaatarids are only known from the Early Cretaceous, the finding of Sinobaatar, therefore, supports that the age of the Jehol Biota is most likely Early Cretaceous.; A multituberculate skeleton from the Lower Cretaceous Yixian Formation at Dawangzhangzi, Lingyuan City, Liaoning Province, Northeast China, provides new morphological information for early multituberculates. The specimen is the holotype of Sinobaatar lingyuanensis gen. et sp. nov. It has a narrow skull that lacks the superorbital crest or postorbital process. The dental formula is 3.?.5.2/1.0.3.2. The dental morphology, especially that of cheek teeth, of S. lingyuanensis is similar to that of Eobaatar, which places it in the family Eobaataridae. The postcranial skeleton of Sinobaatar is similar to that of other multituberculates. As in Holotheria, Metatarsal V of Sinobaatar articulates only with the cuboid and has no contact with the calcaneus, which probably represents the primitive condition of multituberculates. Nine carpals of Sinobaatar resemble those of Zhang-heotherium, except the centrale being larger than the trapezoid. The dental features of Sinobaatar show again that eobaatarids are obviously intermediate between Late Jurassic multituberculates and the later forms. Because eobaatarids are only known from the Early Cretaceous, the finding of Sinobaatar, therefore, supports that the age of the Jehol Biota is most likely Early Cretaceous. |
| 关键词 | Lingyuan Western Liaoning Yixian Formation Early Cretaceous Jehol Biota Multituberculates Sinobaatar |
| WOS标题词 | Science & Technology |
| URL | 查看原文 |
| 关键词[WOS] | SIHETUN VERTEBRATE ; MAMMALS ; AGE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Science & Technology - Other Topics |
| WOS类目 | Multidisciplinary Sciences |
| WOS记录号 | WOS:000175600200013 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.205/handle/311034/3791 |
| 专题 | 中科院古脊椎所（2000年以后） 古低等脊椎动物研究室 |
| 通讯作者 | Hu, YM (reprint author), Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 10044, Peoples R China. |
| 作者单位 | 1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 10044, Peoples R China 2.Amer Museum Nat Hist, New York, NY 10024 USA 3.CUNY, Grad Sch, Biol Program, New York, NY 10016 USA 4.CUNY, City Coll, Biol Program, New York, NY 10016 USA |
| 推荐引用方式 GB/T 7714 | Hu, YM,Wang, YQ,Hu, YM . Sinobaatar gen. nov.: First multituberculate from the Jehol Biota of Liaoning, Northeast China[J]. CHINESE SCIENCE BULLETIN,2002,47(11):933-+. |
| APA | Hu, YM,Wang, YQ,&Hu, YM .(2002).Sinobaatar gen. nov.: First multituberculate from the Jehol Biota of Liaoning, Northeast China.CHINESE SCIENCE BULLETIN,47(11),933-+. |
| MLA | Hu, YM,et al."Sinobaatar gen. nov.: First multituberculate from the Jehol Biota of Liaoning, Northeast China".CHINESE SCIENCE BULLETIN 47.11(2002):933-+. |
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