KMS Nanjing Institute of Geology and Palaeonotology,CAS
A new stemmed echinoderm from the Furongian of China and the origin of Glyptocystitida (Blastozoa, Echinodermata) | |
Zamora, S1,2; Sumrall, CD3; Zhu, XJ (朱学剑)4; Lefebvre, B5 | |
2017 | |
发表期刊 | GEOLOGICAL MAGAZINE |
ISSN | 0016-7568 |
卷号 | 154期号:3页码:465-475 |
摘要 | The Furongian (late Cambrian) is an extremely poorly sampled time in the history of echinoderms, with only few localities yielding complete specimens. Here, we document an exquisitely preserved stemmed echinoderm from the Furongian Sandu Formation in South China that provides important new data illuminating the origin of Glyptocystitida, a common Palaeozoic clade of echinoderms. Sanducystis sinensis n. gen. n. sp. displays an organized theca bearing three circlets of plates (basal, infralateral and lateral), a laterally positioned periproct in the CD interray, a lack of respiratory pectinirhombs and a stem divided in two parts, with expanded inner and outer columnals proximally and narrow, elongate, homeomorphic columnals distally. A phylogenetic analysis places Sanducystis more derived than the columnal-bearing eocrinoid' Ridersia and sister group of a clade encompassing Macrocystella-like glyptocystitoid rhombiferans from the Furongian onwards. By filling in an important morphological gap, Sanducystis provides a clear understanding of character evolution within Glyptocystitida. |
关键词 | Cambrian Glyptocystitida China Eocrinoids Evolution |
DOI | 10.1017/S001675681600011X |
收录类别 | SCI |
语种 | 英语 |
WOS研究方向 | Geology |
WOS类目 | Geosciences, Multidisciplinary |
WOS记录号 | WOS:000399394600005 |
出版者 | CAMBRIDGE UNIV PRESS |
文献类型 | 期刊论文 |
条目标识符 | http://ir.nigpas.ac.cn/handle/332004/13651 |
专题 | 中国科学院南京地质古生物研究所 其他 |
作者单位 | 1.Inst Geol & Minero Espana, C Manuel Lasala,44,9 B, Zaragoza 50006, Spain; 2.Smithsonian Inst, Natl Museum Nat Hist, Dept Paleobiol, Washington, DC 20013 USA; 3.Univ Tennessee, Dept Earth & Planetary Sci, Knoxville, TN 37996 USA; 4.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeontol & Stratig, Nanjing 210008, Jiangsu, Peoples R China; 5.Univ Lyon 1, Geode, UMR CNRS 5276, 2 Rue Dubois, F-69622 Villeurbanne, France |
推荐引用方式 GB/T 7714 | Zamora, S,Sumrall, CD,Zhu, XJ ,et al. A new stemmed echinoderm from the Furongian of China and the origin of Glyptocystitida (Blastozoa, Echinodermata)[J]. GEOLOGICAL MAGAZINE,2017,154(3):465-475. |
APA | Zamora, S,Sumrall, CD,Zhu, XJ ,&Lefebvre, B.(2017).A new stemmed echinoderm from the Furongian of China and the origin of Glyptocystitida (Blastozoa, Echinodermata).GEOLOGICAL MAGAZINE,154(3),465-475. |
MLA | Zamora, S,et al."A new stemmed echinoderm from the Furongian of China and the origin of Glyptocystitida (Blastozoa, Echinodermata)".GEOLOGICAL MAGAZINE 154.3(2017):465-475. |
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