A new osteichthyan from the late Silurian of Yunnan, China
文献类型：期刊论文
| 作者 | Choo, Brian1,2; Zhu, Min1,3; Qu, Qingming4,5; Yu, Xiaobo1,6; Jia, Liantao1; Zhao, Wenjin1,3 |
| 刊名 | PLOS ONE
 |
| 出版日期 | 2017-03-08 |
| 卷号 | 12期号:3 |
| DOI | 10.1371/journal.pone.0170929 |
| 文献子类 | Article |
| 英文摘要 | Our understanding of early gnathostome evolution has been hampered by a generally scant fossil record beyond the Devonian. Recent discoveries from the late Silurian Xiaoxiang Fauna of Yunnan, China, have yielded significant new information, including the earliest articulated osteichthyan fossils from the Ludlow-aged Kuanti Formation. Here we describe the partial postcranium of a new primitive bony fish from the Kuanti Formation that represents the second known taxon of pre-Devonian osteichthyan revealing articulated remains. The new form, Sparalepis tingi gen. et sp. nov., displays similarities with Guiyu and Psarolepis, including a spine-bearing pectoral girdle and a placoderm-like dermal pelvic girdle, a structure only recently identified in early osteichthyans. The squamation with particularly thick rhombic scales shares an overall morphological similarity to that of Psarolepis. However, the anterior flank scales of Sparalepis possess an unusual interlocking system of ventral bulges embraced by dorsal concavities on the outer surfaces. A phylogenetic analysis resolves Sparalepis within a previously recovered cluster of stem-sarcopterygians including Guiyu, Psarolepis and Achoania. The high diversity of osteichthyans from the Ludlow of Yunnan strongly contrasts with other Silurian vertebrate assemblages, suggesting that the South China block may have been an early center of diversification for early gnathostomes, well before the advent of the Devonian "Age of Fishes". |
| WOS关键词 | RAY-FINNED FISHES ; SCALE MORPHOLOGY ; SHEDS LIGHT ; BONY FISHES ; ORIGIN ; GNATHOSTOME ; ANDREOLEPIS ; PLACODERM ; VERTEBRATES ; CHARACTERS |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000396073700092 |
| 资助机构 | National Nature Science Foundation of China(41530102) ; Chinese Academy of Sciences(QYZDJ-SSW-DQC002) ; Australian Research Council(DE160100247) |
| 源URL | [http://124.16.247.212/handle/311034/7499]  |
| 专题 | 古脊椎动物与古人类研究所_古低等脊椎动物研究室 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, Inst Vertebrate Paleontol & Paleoanthropol, Beijing, Peoples R China 2.Flinders Univ S Australia, Sch Biol Sci, Adelaide, SA, Australia 3.Univ Chinese Acad Sci, Coll Earth Sci, Beijing, Peoples R China 4.Uppsala Univ, Dept Physiol & Dev Biol, Subdept Evolutionary Organismal Biol, Uppsala, Sweden 5.Univ Ottawa, Ctr Adv Res Environm Genom, Ottawa, ON, Canada 6.Kean Univ, Dept Biol Sci, Union, NJ USA |
| 推荐引用方式 GB/T 7714 | Choo, Brian,Zhu, Min,Qu, Qingming,et al. A new osteichthyan from the late Silurian of Yunnan, China[J]. PLOS ONE,2017,12(3). |
| APA | Choo, Brian,Zhu, Min,Qu, Qingming,Yu, Xiaobo,Jia, Liantao,&Zhao, Wenjin.(2017).A new osteichthyan from the late Silurian of Yunnan, China.PLOS ONE,12(3). |
| MLA | Choo, Brian,et al."A new osteichthyan from the late Silurian of Yunnan, China".PLOS ONE 12.3(2017). |
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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