| A new marine reptile from the Triassic of China, with a highly specialized feeding adaptation | |
| Cheng, Long1; Chen, Xiao-Hong1; Shang, Qing-Hua2; Wu, Xiao-Chun3; Wu, XC (reprint author), Canadian Museum Nat, POB 3443,STN D, Ottawa, ON K1P 6P4, Canada. | |
| 2014-03-01 | |
| 发表期刊 | NATURWISSENSCHAFTEN
 |
| ISSN | 0028-1042 |
| 卷号 | 101期号:3页码:251-259 |
| 文章类型 | Article |
| 摘要 | The Luoping fauna (Anisian, Middle Triassic) is probably the oldest of Triassic faunas in Guizhou-Yunnan area, China. The reptilian assemblage is comprised of ichthyosaurs, a number of sauropterygians (pachypleurosaur-like forms), saurosphargids, protorosaurs, and archosauriforms. Here, we report on a peculiar reptile, newly found in this fauna. Its dentition is fence or comb-like and bears more than 175 pleurodont teeth in each ramus of the upper and lower jaws, tooth crown is needle-like distally and blade-shaped proximally; its rostrum strongly bends downward and the anterior end of its mandible expands both dorsally and ventrally to form a shovel-headed structure; and its ungual phalanges are hoof-shaped. The specializations of the jaws and dentition indicate that the reptile may have been adapted to a way of bottom-filter feeding in water. It is obvious that such delicate teeth are not strong enough to catch prey, but were probably used as a barrier to filter microorganisms or benthic invertebrates such as sea worms. These were collected by the specialized jaws, which may have functioned as a shovel or pushdozer (the mandible) and a grasper or scratcher (the rostrum). Our preliminary analysis suggests that the new reptile might be more closely related to the Sauropterygia than to other marine reptiles. |
| 关键词 | Diapsida Bottom-filter Feeding Middle Triassic Yunnan China |
| WOS标题词 | Science & Technology |
| 关键词[WOS] | REVISION ; DIAPSIDA |
| 收录类别 | SCI |
| 语种 | 英语 |
| 项目资助者 | China Geological Survey [1212011120148]; National Natural Science Foundation of China [NNSFC- 41172027]; CMN [RCP09] |
| WOS研究方向 | Science & Technology - Other Topics |
| WOS类目 | Multidisciplinary Sciences |
| WOS记录号 | WOS:000332093800009 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.205/handle/311034/5176 |
| 专题 | 古低等脊椎动物研究室 |
| 通讯作者 | Wu, XC (reprint author), Canadian Museum Nat, POB 3443,STN D, Ottawa, ON K1P 6P4, Canada. |
| 作者单位 | 1.Wuhan Inst Geol & Mineral Resources, Wuhan 430223, Peoples R China 2.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Lab Evolutionary Systemat Vertebrates, Beijing 100044, Peoples R China 3.Canadian Museum Nat, Ottawa, ON K1P 6P4, Canada |
| 推荐引用方式 GB/T 7714 | Cheng, Long,Chen, Xiao-Hong,Shang, Qing-Hua,et al. A new marine reptile from the Triassic of China, with a highly specialized feeding adaptation[J]. NATURWISSENSCHAFTEN,2014,101(3):251-259. |
| APA | Cheng, Long,Chen, Xiao-Hong,Shang, Qing-Hua,Wu, Xiao-Chun,&Wu, XC .(2014).A new marine reptile from the Triassic of China, with a highly specialized feeding adaptation.NATURWISSENSCHAFTEN,101(3),251-259. |
| MLA | Cheng, Long,et al."A new marine reptile from the Triassic of China, with a highly specialized feeding adaptation".NATURWISSENSCHAFTEN 101.3(2014):251-259. |
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