KMS Institute of Vertebrate Paleontology and Paleoanthropology
| An X-radiographic and SEM study of the osseous inner ear of multituberculates and monotremes (Mammalia): implications for mammalian phylogeny and evolution of hearing | |
Fox, RC; Meng, J ; Fox, RC (reprint author), Univ Alberta, Dept Sci Biol, Lab Vertebrate Paleontol, Edmonton, AB T6G 2E9, Canada.
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| 1997-11-01 | |
| 发表期刊 | ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY
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| ISSN | 0024-4082 |
| 卷号 | 121期号:3页码:249-291 |
| 文章类型 | Review |
| 摘要 | Multituberculate petrosals with well-presented, three-dimensional internal anatomy from the Late Cretaceous/early Paleocene Bug Creek Anthills, Montana, U.S.A., are described from X-radiographic and SEM images, as well as from conventional visual observations, and are compared with the anatomy of the osseous inner ear in monotremes and in primitive nontherian and therian mammals. Results of this study indicate that: (1) the cochlea of at least some multituberculates retained a lagena, previously known only in monotremes among mammals; (2) an enlarged vestibule evolved in several lineages of multituberculates independently, and hence is not a synapomorphy of the order; (3) the cochlear canal lacks osseous laminae in support of the short, wide basilar membrane, which was probably inefficient in responding to high-frequency airborne vibrations; and (4) consequently, bone-conducted bearing in some multituberculate species may have been important in interpretation of their surroundings. Comparisons with the inner ear of monotremes and primitive therians indicate that curvature of the cochlea and cribriform plates for passage of vestibulocochlear nerve branches through the petrosal are unlikely homologues between monotremes and therians. From non-therian to therian mammals, there is a distinct morphological gap in the inner ear transition, characterized by acquisition of a number of neomorphs in the therian inner ear; an intermediate stage has yet to be discovered. (C) 1997 The Linnean Society of London.; Multituberculate petrosals with well-presented, three-dimensional internal anatomy from the Late Cretaceous/early Paleocene Bug Creek Anthills, Montana, U.S.A., are described from X-radiographic and SEM images, as well as from conventional visual observations, and are compared with the anatomy of the osseous inner ear in monotremes and in primitive nontherian and therian mammals. Results of this study indicate that: (1) the cochlea of at least some multituberculates retained a lagena, previously known only in monotremes among mammals; (2) an enlarged vestibule evolved in several lineages of multituberculates independently, and hence is not a synapomorphy of the order; (3) the cochlear canal lacks osseous laminae in support of the short, wide basilar membrane, which was probably inefficient in responding to high-frequency airborne vibrations; and (4) consequently, bone-conducted bearing in some multituberculate species may have been important in interpretation of their surroundings. Comparisons with the inner ear of monotremes and primitive therians indicate that curvature of the cochlea and cribriform plates for passage of vestibulocochlear nerve branches through the petrosal are unlikely homologues between monotremes and therians. From non-therian to therian mammals, there is a distinct morphological gap in the inner ear transition, characterized by acquisition of a number of neomorphs in the therian inner ear; an intermediate stage has yet to be discovered. (C) 1997 The Linnean Society of London. |
| 关键词 | Anatomy Late Cretaceous Multituberculata North America |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 关键词[WOS] | COCHLEA ; MORGANUCODON ; AUSTRALIA |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Zoology |
| WOS类目 | Zoology |
| WOS记录号 | WOS:000071445300001 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.205/handle/311034/4007 |
| 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 | Fox, RC (reprint author), Univ Alberta, Dept Sci Biol, Lab Vertebrate Paleontol, Edmonton, AB T6G 2E9, Canada. |
| 作者单位 | 1.Univ Alberta, Dept Sci Biol, Lab Vertebrate Paleontol, Edmonton, AB T6G 2E9, Canada 2.Amer Museum Nat Hist, Dept Vertebrate Paleontol, New York, NY 10024 USA 3.Inst Vertebrate Paleontol & Paleoanthropol, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fox, RC,Meng, J,Fox, RC . An X-radiographic and SEM study of the osseous inner ear of multituberculates and monotremes (Mammalia): implications for mammalian phylogeny and evolution of hearing[J]. ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY,1997,121(3):249-291. |
| APA | Fox, RC,Meng, J,&Fox, RC .(1997).An X-radiographic and SEM study of the osseous inner ear of multituberculates and monotremes (Mammalia): implications for mammalian phylogeny and evolution of hearing.ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY,121(3),249-291. |
| MLA | Fox, RC,et al."An X-radiographic and SEM study of the osseous inner ear of multituberculates and monotremes (Mammalia): implications for mammalian phylogeny and evolution of hearing".ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY 121.3(1997):249-291. |
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