| The largest Silurian vertebrate and its palaeoecological implications | |
| Choo, Brian1,2; Zhu, Min1; Zhao, Wenjin1; Jia, Liaotao1; Zhu, You'an1; Zhu, M(朱敏) (reprint author), Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, POB 643, Beijing 100044, Peoples R China. | |
| 2014-06-12 | |
| 发表期刊 | SCIENTIFIC REPORTS
 |
| ISSN | 2045-2322 |
| 卷号 | 4期号:4页码:4 |
| 文章类型 | Article |
| 摘要 | An apparent absence of Silurian fishes more than half-a-metre in length has been viewed as evidence that gnathostomes were restricted in size and diversity prior to the Devonian. Here we describe the largest pre-Devonian vertebrate (Megamastax amblyodus gen. et sp. nov.), a predatory marine osteichthyan from the Silurian Kuanti Formation (late Ludlow similar to 423 million years ago) of Yunnan, China, with an estimated length of about 1 meter. The unusual dentition of the new form suggests a durophagous diet which, combined with its large size, indicates a considerable degree of trophic specialisation among early osteichthyans. The lack of large Silurian vertebrates has recently been used as constraint in palaeoatmospheric modelling, with purported lower oxygen levels imposing a physiological size limit. Regardless of the exact causal relationship between oxygen availability and evolutionary success, this finding refutes the assumption that pre-Emsian vertebrates were restricted to small body sizes. |
| WOS标题词 | Science & Technology |
| 关键词[WOS] | ATMOSPHERIC OXYGEN ; PHANEROZOIC TIME ; BONY FISHES ; RADIATION ; MODEL ; HYPOXIA ; JAWS ; INTERRELATIONSHIPS ; GEOCARBSULF ; ENVIRONMENT |
| 收录类别 | SCI |
| 语种 | 英语 |
| 项目资助者 | Major Basic Research Projects of China [2012CB821902]; Natural Science Foundation of China [40930208]; National Major Scientific Instrument and Equipment Development Project of China [2011YQ03012] |
| WOS研究方向 | Science & Technology - Other Topics |
| WOS类目 | Multidisciplinary Sciences |
| WOS记录号 | WOS:000337225800001 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.205/handle/311034/5155 |
| 专题 | 古低等脊椎动物研究室 |
| 通讯作者 | Zhu, M(朱敏) (reprint author), Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, POB 643, Beijing 100044, Peoples R China. |
| 作者单位 | 1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China 2.Flinders Univ S Australia, Sch Biol Sci, Adelaide, SA 5001, Australia |
| 推荐引用方式 GB/T 7714 | Choo, Brian,Zhu, Min,Zhao, Wenjin,et al. The largest Silurian vertebrate and its palaeoecological implications[J]. SCIENTIFIC REPORTS,2014,4(4):4. |
| APA | Choo, Brian,Zhu, Min,Zhao, Wenjin,Jia, Liaotao,Zhu, You'an,&Zhu, M.(2014).The largest Silurian vertebrate and its palaeoecological implications.SCIENTIFIC REPORTS,4(4),4. |
| MLA | Choo, Brian,et al."The largest Silurian vertebrate and its palaeoecological implications".SCIENTIFIC REPORTS 4.4(2014):4. |
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