KMS Nanjing Institute of Geology and Palaeonotology,CAS
Discovery of missing link between demosponges and hexactinellids confirms palaeontological model of sponge evolution | |
Botting, Joseph P.1,2; Zhang, Yuandong (张元动)3; Muir, Lucy A.2 | |
2017-07-13 | |
发表期刊 | SCIENTIFIC REPORTS |
ISSN | 2045-2322 |
卷号 | 7页码:7 |
摘要 | The two major extant groups of siliceous sponges, Demospongiae and Hexactinellida, are generally regarded as sister groups forming the clade Silicea, although the nature of their last common ancestor is uncertain. The fossil record contains a diverse range of basal demosponges that appear to have evolved from hexactine-bearing reticulosan ancestors, although a compelling morphological intermediate has not previously been discovered. Here we describe a new species of fossil sponge, Conciliospongia anjiensis gen. et sp. nov., from the Late Ordovician (similar to 444 Ma) Anji Biota of South China. This species has a reticulate, tufted skeleton of minute monaxon spicules, characteristic of the fossil demosponge family Hazeliidae and modern heteroscleromorphs, with hexactine spicules and a globose body form inherited from reticulosan ancestors. This transitional morphology had previously been hypothesized in palaeontological studies. This morphological intermediate between two extant classes further confirms siliceous sponge monophyly and demosponge-hexactinellid spicule homology, and supports the primitive, stem-silicean interpretation of simpler-structured fossil reticulosans. |
DOI | 10.1038/s41598-017-05604-6 |
收录类别 | SCI |
语种 | 英语 |
关键词[WOS] | Ordovician Sponges ; South China ; Porifera ; Spicules ; Wales ; Cyathophycus ; Lagerstatte ; Phylogeny |
资助项目 | Chinese Academy of Science[XDB10010100] ; Chinese Academy of Science[XDPB050105] ; Natural Science Foundation of China[41521061] ; Ministry of Science and Technology of China[2013FY111000] ; CAS President's International Fellowship Initiative[2016VEB006] ; [IGCP 653] |
WOS研究方向 | Science & Technology - Other Topics |
WOS类目 | Multidisciplinary Sciences |
WOS记录号 | WOS:000425909500003 |
项目资助者 | Chinese Academy of Science ; Natural Science Foundation of China ; Ministry of Science and Technology of China ; CAS President's International Fellowship Initiative |
出版者 | NATURE PUBLISHING GROUP |
文献类型 | 期刊论文 |
条目标识符 | http://ir.nigpas.ac.cn/handle/332004/14055 |
专题 | 中国科学院南京地质古生物研究所 其他 |
通讯作者 | Zhang, Yuandong (张元动) |
作者单位 | 1.Nanjing Inst Geol & Palaeontol, 39 East Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China 2.Amgueddfa Cymru Natl Museum Wales, Dept Nat Sci, Cathays Pk, Cardiff CF10 3LP, S Glam, Wales 3.Nanjing Inst Geol & Palaeontol, CAS Key Lab Econ Stratig & Palaeogeog, 39 East Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China |
推荐引用方式 GB/T 7714 | Botting, Joseph P.,Zhang, Yuandong ,Muir, Lucy A.. Discovery of missing link between demosponges and hexactinellids confirms palaeontological model of sponge evolution[J]. SCIENTIFIC REPORTS,2017,7:7. |
APA | Botting, Joseph P.,Zhang, Yuandong ,&Muir, Lucy A..(2017).Discovery of missing link between demosponges and hexactinellids confirms palaeontological model of sponge evolution.SCIENTIFIC REPORTS,7,7. |
MLA | Botting, Joseph P.,et al."Discovery of missing link between demosponges and hexactinellids confirms palaeontological model of sponge evolution".SCIENTIFIC REPORTS 7(2017):7. |
条目包含的文件 | ||||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论