globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2016.02.025
论文题名:
The earliest pelagic jellyfish with rhopalia from Cambrian Chengjiang Lagerstätte
作者: Han J.; Hu S.; Cartwright P.; Zhao F.; Ou Q.; Kubota S.; Wang X.; Yang X.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2016
卷: 449
起始页码: 166
结束页码: 173
语种: 英语
英文关键词: Cambrian ; Chengjiang ; Medusa ; Medusozoa ; Pelagic ; Rhopalium
英文摘要: Modern cnidarian medusae generally show a triphasic life cycle with the succession of a larva, a sessile polyp and a pelagic medusa stage. The debate around the metagenesis of sessile polyps into pelagic medusae has lasted for more than 100 years. When pelagic forms originated is not clear. Hitherto, the earliest crown-group medusae have been found at Cambrian Stage 5 (traditional Middle Cambrian, 509 Ma) in Utah, while diverse stem-group medusozoans were found in the basal Cambrian Fortunian Stage. No reliable medusae have been found from Cambrian Series 2 Stage 3 (ca. 521 Ma), although the marine benthic community teemed with many phyla of bilaterians, sponges and ctenophores. Here, we reinterpret Yunnanoascus haikouensis Hu et al. (2007), originally described as a ctenophore, as a pelagic, predatory, crown-group medusozoan, based on the presence of rhopalia, possible radial canals and marginal tentacles. The medusae were a predatory member of the pelagic food web at the middle level of the ocean at Cambrian Stage 3. © 2016 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/68473
Appears in Collections:过去全球变化的重建

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作者单位: State Key Laboratory of Continental Dynamics, Department of Geology, Northwest University, 229 Taibai Road, Xi'an, China; Chengdu Center, China Geological Survey, China; Department of Ecology and Evolutionary Biology, University of Kansas, Lawrence, KS, United States; State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, China; Early Life Evolution Laboratory, School of Earth Sciences and Resources, China; University of Geosciences, Beijing, China; Seto Marine Biological Laboratory, Field Science Education and Research Center, Kyoto University, Shirahama, Nishimuro, Wakayama, Japan

Recommended Citation:
Han J.,Hu S.,Cartwright P.,et al. The earliest pelagic jellyfish with rhopalia from Cambrian Chengjiang Lagerstätte[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2016-01-01,449
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