New material of the Early Devonian sarcopterygian Styloichthys changae illuminates the origin of cosmine
文献类型：期刊论文
| 作者 | Cui, Xindong3,4; Qiao, Tuo4; Peng, Lijian1; Zhu, Min2,4,5 |
| 刊名 | JOURNAL OF SYSTEMATIC PALAEONTOLOGY
 |
| 出版日期 | 2025-12-31 |
| 卷号 | 23期号:1页码:22 |
| 关键词 | Early Devonian sarcopterygian scales cosmine evolution |
| ISSN号 | 1477-2019 |
| DOI | 10.1080/14772019.2024.2432273 |
| 英文摘要 | The Early Devonian sarcopterygian Styloichthys changae provides substantial information to resolve the phylogenetic relationships of early sarcopterygians. Its dermal bones show a cosmine surface with relatively large pores and a unique histological condition, which is essential to understanding the early evolution of the dermoskeleton in sarcopterygians. However, more detailed histological information on this taxon is needed. Here, we present new data about the morphology and histology of dermal bones and scales of S. changae based on two semi-articulated specimens. The scales bear parallel ridges and relatively large pores on their external surface resembling those of the dermal bones, showing an intermediate condition between stem sarcopterygians and crown sarcopterygians. We recognize three stages in the growth series of S. changae scales. The growth pattern of the cosmine layer undergoes two significant changes: from a superpositional pattern to a continuous areal pattern and then to a discontinuous areal pattern. In addition, the new data indicate that the pore-canal system predates the enamel-dentine complex of cosmine. This work supports the hypothesis that the cosmine arose step by step in sarcopterygians and provides more details on the evolutionary development pattern of cosmine. |
| WOS关键词 | LOPHOSTEUS-SUPERBUS PANDER ; DERMAL SKELETON ; WESTERN-AUSTRALIA ; GANOID SCALES ; FISH ; HISTOLOGY ; MICROSTRUCTURE ; LEPISOSTEUS ; COELACANTH ; POLYPTERUS |
| 资助项目 | National Natural Science Foundation of China[42130209] ; National Natural Science Foundation of China[42302005] ; National Natural Science Foundation of China[2022M720215] ; National Natural Science Foundation of China[2024T170012] ; Chinese Postdoctoral Science Foundation[202205AF150002] ; Mee-mann Chang Academician Workstation in Yunnan Province[223106] ; State Key Laboratory of Palaeobiology and Stratigraphy |
| WOS研究方向 | Evolutionary Biology ; Paleontology |
| 语种 | 英语 |
| WOS记录号 | WOS:001390710200001 |
| 出版者 | TAYLOR & FRANCIS LTD |
| 源URL | [http://119.78.100.205/handle/311034/24178]  |
| 专题 | 中国科学院古脊椎动物与古人类研究所 |
| 通讯作者 | Zhu, Min |
| 作者单位 | 1.Qujing Normal Univ, Res Ctr Nat Hist & Culture, Qujing, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Peking Univ, Sch Earth & Space Sci, Key Lab Orogen Belts & Crustal Evolut, Beijing 100871, Peoples R China 4.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, CAS Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China 5.Qujing Normal Univ, Res Ctr Nat Hist & Culture, Qujing 655011, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cui, Xindong,Qiao, Tuo,Peng, Lijian,et al. New material of the Early Devonian sarcopterygian Styloichthys changae illuminates the origin of cosmine[J]. JOURNAL OF SYSTEMATIC PALAEONTOLOGY,2025,23(1):22. |
| APA | Cui, Xindong,Qiao, Tuo,Peng, Lijian,&Zhu, Min.(2025).New material of the Early Devonian sarcopterygian Styloichthys changae illuminates the origin of cosmine.JOURNAL OF SYSTEMATIC PALAEONTOLOGY,23(1),22. |
| MLA | Cui, Xindong,et al."New material of the Early Devonian sarcopterygian Styloichthys changae illuminates the origin of cosmine".JOURNAL OF SYSTEMATIC PALAEONTOLOGY 23.1(2025):22. |
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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