The operculum and mode of life of the lower Cambrian hyolith Cupitheca from South Australia and North China

doi:10.1016/j.palaeo.2015.11.042

NIGPAS OpenIR

	The operculum and mode of life of the lower Cambrian hyolith Cupitheca from South Australia and North China
	Skovsted, Christian B.1; Pan, Bing 2,3; Topper, Timothy P.1; Betts, Marissa J.4; Li, Guoxiang 2; Brock, Glenn A.4
	2016-02-01
发表期刊	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN	0031-0182
卷号	443 页码:123-130
摘要	The operculum of the problematic tubular fossil Cupitheca holocyclata Bengtson in Bengtson et al., (1990) is described for the first time based on collections from South Australia and North China. The phosphatized sub-circular operculum exhibits well defined cardinal processes and a narrow cardinal shield unequivocally demonstrating that Cupitheca is a hyolith, probably an orthothecid. C. holocyclata has an almost global distribution in Cambrian Stages 3-4. The apical structure of the operculum is an elevated, disc-shaped platform with a concave base and a marginal rim that could represent the scar of a specialized larval attachment structure, perhaps anchoring the larval hyolith to a sediment grain, algae or other benthic substrate. Cupitheca probably had a pelagic larval stage and settled on the seafloor by attachment of the apical disc to suitable substrates before developing a free-living benthic adult lifestyle. This contrasting mode of life compared to other hyolith genera suggests that the group had already evolved a range of distinct lifestyles in the Cambrian, providing significant clues into their ecology and distribution. (C) 2015 Elsevier B.V. All rights reserved.
关键词	Operculum Lower Cambrian South Australia North China Hyolitha Orthothecida
DOI	10.1016/j.palaeo.2015.11.042
语种	英语
关键词[WOS]	SMALL SHELLY FOSSILS ; BRACHIOPOD PHYLOGENY ; EARLIEST ONTOGENY ; GREENLAND ; SIBERIA ; ECOLOGY
资助项目	Australian Research Council[120104251] ; Swedish Museum of Natural History[440854] ; National Natural Science Foundation of China[41372021] ; Ministry of Science and Technology of China[2013CB835000]
WOS研究方向	Physical Geography ; Geology ; Paleontology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS记录号	WOS:000370090200011
项目资助者	Australian Research Council ; Swedish Museum of Natural History ; National Natural Science Foundation of China ; Ministry of Science and Technology of China
出版者	ELSEVIER SCIENCE BV
文献类型	期刊论文
条目标识符	http://ir.nigpas.ac.cn/handle/332004/21439
通讯作者	Skovsted, Christian B.
作者单位	1.Swedish Museum Nat Hist, Dept Palaeobiol, Box 50007, SE-10405 Stockholm, Sweden 2.Chinese Acad Sci, Nanjing Inst Geol & Paleontol, State Key Lab Paleobiol & Stratig, Nanjing 210008, Jiangsu, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Macquarie Univ, Dept Biol Sci, Sydney, NSW 2109, Australia
推荐引用方式 GB/T 7714	Skovsted, Christian B.,Pan, Bing,Topper, Timothy P.,et al. The operculum and mode of life of the lower Cambrian hyolith Cupitheca from South Australia and North China[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2016,443:123-130.
APA	Skovsted, Christian B.,Pan, Bing,Topper, Timothy P.,Betts, Marissa J.,Li, Guoxiang,&Brock, Glenn A..(2016).The operculum and mode of life of the lower Cambrian hyolith Cupitheca from South Australia and North China.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,443,123-130.
MLA	Skovsted, Christian B.,et al."The operculum and mode of life of the lower Cambrian hyolith Cupitheca from South Australia and North China".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 443(2016):123-130.