MONOTREME AFFINITIES AND LOW-FREQUENCY HEARING SUGGESTED BY MULTITUBERCULATE EAR
文献类型：期刊论文
| 作者 | MENG, J; WYSS, AR; MENG, J (reprint author), AMER MUSEUM NAT HIST,DEPT VERTEBRATE PALEONTOL,CENT PK W 79TH ST,NEW YORK,NY 10024, USA. |
| 刊名 | NATURE
 |
| 出版日期 | 1995-09-14 |
| 卷号 | 377期号:6545页码:141-144 |
| ISSN号 | 0028-0836 |
| 文献子类 | Article |
| 英文摘要 | MULTITUBERCULATES are an extinct, dentally distinctive group of Mesozoic/early Cenozoic mammals of uncertain affinities(1). We report here the discovery of a multituberculate ectotympanic bone, associated with the malleus in original life position, from two exquisitely preserved auditory regions, This documents, to our knowledge for the first time, incorporation of the angular and prearticular bones (jaw components in non-mammalian tetrapods) into the middle ear of multituberculates, favouring the hypothesized single origin of the ossicular chain in mammals(2,3). Morphology and orientation of these elements are strikingly similar to those of the extant egg-laying platypus and echidnas, suggesting a unique common ancestry of these forms(4), an affiliation once generally discredited(5-8) but regaining some recent support(9,10). The structure of these new multituberculate auditory ossicles, in conjuction with a greatly inflated vestibule and an uncoiled cochlea, implies an ear inefficient for reception of high-frequency airborne vibrations but well suited for bone-conducted hearing,; MULTITUBERCULATES are an extinct, dentally distinctive group of Mesozoic/early Cenozoic mammals of uncertain affinities(1). We report here the discovery of a multituberculate ectotympanic bone, associated with the malleus in original life position, from two exquisitely preserved auditory regions, This documents, to our knowledge for the first time, incorporation of the angular and prearticular bones (jaw components in non-mammalian tetrapods) into the middle ear of multituberculates, favouring the hypothesized single origin of the ossicular chain in mammals(2,3). Morphology and orientation of these elements are strikingly similar to those of the extant egg-laying platypus and echidnas, suggesting a unique common ancestry of these forms(4), an affiliation once generally discredited(5-8) but regaining some recent support(9,10). The structure of these new multituberculate auditory ossicles, in conjuction with a greatly inflated vestibule and an uncoiled cochlea, implies an ear inefficient for reception of high-frequency airborne vibrations but well suited for bone-conducted hearing, |
| URL标识 | 查看原文 |
| WOS关键词 | MAMMALS |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:A1995RU75400045 |
| 公开日期 | 2013-11-27 |
| 源URL | [http://119.78.100.205/handle/311034/4080]  |
| 专题 | 古脊椎动物与古人类研究所_图书馆1 |
| 通讯作者 | MENG, J (reprint author), AMER MUSEUM NAT HIST,DEPT VERTEBRATE PALEONTOL,CENT PK W 79TH ST,NEW YORK,NY 10024, USA. |
| 作者单位 | 1.INST VERTEBRATE PALEONTOL & PALEOANTHROPOL,BEIJING,PEOPLES R CHINA 2.UNIV CALIF SANTA BARBARA,DEPT GEOL SCI,SANTA BARBARA,CA 93106 |
| 推荐引用方式 GB/T 7714 | MENG, J,WYSS, AR,MENG, J . MONOTREME AFFINITIES AND LOW-FREQUENCY HEARING SUGGESTED BY MULTITUBERCULATE EAR[J]. NATURE,1995,377(6545):141-144. |
| APA | MENG, J,WYSS, AR,&MENG, J .(1995).MONOTREME AFFINITIES AND LOW-FREQUENCY HEARING SUGGESTED BY MULTITUBERCULATE EAR.NATURE,377(6545),141-144. |
| MLA | MENG, J,et al."MONOTREME AFFINITIES AND LOW-FREQUENCY HEARING SUGGESTED BY MULTITUBERCULATE EAR".NATURE 377.6545(1995):141-144. |
入库方式： OAI收割
来源：古脊椎动物与古人类研究所
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