KMS Institute of Vertebrate Paleontology and Paleoanthropology
| A new genus of sinogaleaspids (Galeaspida, stem-Gnathostomata) from the Silurian Period in Jiangxi, China | |
Shan, Xianren1,2; Zhu, Min1,3,4 ; Zhao, Wenjin1,3,4; Pan, Zhaohui1; Wang, Pingli2; Gai, Zhikun1,3,4
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| 2020-05-15 | |
| 发表期刊 | PEERJ
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| ISSN | 2167-8359 |
| 卷号 | 8期号:0页码:22 |
| 摘要 | Galeaspids are an endemic clade of jawless stem-gnathostomes known as ostracoderms. Their existence illuminates how specific characteristics developed in jawed vertebrates. Sinogaleaspids are of particular interest among the galeaspids but their monophyly is controversial because little is known about Sinogaleaspis xikengensis. Newly discovered sinogaleaspids from the Lower Silurian of Jiangxi, China provide a wealth of data and diagnostic features used to establish the new genus, Rumporostralis gen. nov., for Sinogaleaspis xikengensis. A morphological study showed that the sensory canal system of sinogaleaspids had mosaic features similar to those of three known galeaspids. There are 3-8 pairs of transverse canals in the Sinogaleaspidae, which suggests that the sensory canal system of galeaspid probably had a grid distribution with transverse canals arranged throughout the cephalic division. Phylogenetic analysis of Galeaspida supports the monophyly of the Sinogaleaspidae, consisting of Sinogaleaspis, Rumporostralis, and Anjiaspis. However, Shuyu and Meishanaspis form another monophyletic group, Shuyuidae fam. nov., which is outside all other eugaleaspidiforms. We propose a cladistically-based classification of Galeaspida based on our analysis. |
| 关键词 | New genus Galeaspida Eugaleaspids Phylogeny Silurian |
| DOI | 10.7717/peerj.9008 |
| 关键词[WOS] | LINE SYSTEM ; AGNATHA ; OSTEOSTRACI ; VERTEBRATE ; AFFINITY ; GROWTH |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | Key Research Program of Frontier Sciences, CAS[QYZDB-SSW-DQC040] ; National Program for support of Top-notch Young Professionals ; Strategic Priority Research Program of CAS[XDB26000000] ; National Nature Science Foundation of China[41572108] ; National Nature Science Foundation of China[41530102] ; National Nature Science Foundation of China[41972006] ; Innovation Training Programs for Undergraduates, CAS ; State Key Laboratory of Palaeobiology and Stratigraphy (Nanjing Institute of Geology and Palaeontology, CAS)[193121] |
| WOS研究方向 | Science & Technology - Other Topics |
| WOS类目 | Multidisciplinary Sciences |
| WOS记录号 | WOS:000533154200002 |
| 出版者 | PEERJ INC |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.205/handle/311034/17492 |
| 专题 | 中科院古脊椎所（2000年以后） |
| 通讯作者 | Gai, Zhikun |
| 作者单位 | 1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing, Peoples R China 2.Shandong Univ Sci & Technol, Coll Earth Sci & Engn, Qingdao, Peoples R China 3.CAS Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China 4.Univ Chinese Acad Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shan, Xianren,Zhu, Min,Zhao, Wenjin,et al. A new genus of sinogaleaspids (Galeaspida, stem-Gnathostomata) from the Silurian Period in Jiangxi, China[J]. PEERJ,2020,8(0):22. |
| APA | Shan, Xianren,Zhu, Min,Zhao, Wenjin,Pan, Zhaohui,Wang, Pingli,&Gai, Zhikun.(2020).A new genus of sinogaleaspids (Galeaspida, stem-Gnathostomata) from the Silurian Period in Jiangxi, China.PEERJ,8(0),22. |
| MLA | Shan, Xianren,et al."A new genus of sinogaleaspids (Galeaspida, stem-Gnathostomata) from the Silurian Period in Jiangxi, China".PEERJ 8.0(2020):22. |
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