气候变化领域集成服务门户(CCPortal): Geological alteration of Precambrian steroids mimics early animal signatures

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DOI	10.1038/s41559-020-01336-5
	Geological alteration of Precambrian steroids mimics early animal signatures
	van Maldegem L.M.; Nettersheim B.J.; Leider A.; Brocks J.J.; Adam P.; Schaeffer P.; Hallmann C.
发表日期	2021
ISSN	2397-334X
起始页码	169
结束页码	173
卷号	5 期号:2
英文摘要	The absence of unambiguous animal body fossils in rocks older than the late Ediacaran has rendered fossil lipids the most promising tracers of early organismic complexity. Yet much debate surrounds the various potential biological sources of putative metazoan steroids found in Precambrian rocks. Here we show that 26-methylated steranes—hydrocarbon structures currently attributed to the earliest animals—can form via geological alteration of common algal sterols, which carries important implications for palaeo-ecological interpretations and inhibits the use of such unconventional ‘sponge’ steranes for reconstructing early animal evolution. ? 2020, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
scopus关键词	steroid; animal; evolution; fossil; Animals; Biological Evolution; Fossils; Steroids
来源期刊	Nature Ecology & Evolution
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/257031
作者单位	Max Planck Institute for Biogeochemistry, Jena, Germany; MARUM — Center for Marine Environmental Sciences, University of Bremen, Bremen, Germany; The Australian National University, Canberra, ACT, Australia; University of Strasbourg, CNRS—UMR 7177, Strasbourg, France
推荐引用方式 GB/T 7714	van Maldegem L.M.,Nettersheim B.J.,Leider A.,et al. Geological alteration of Precambrian steroids mimics early animal signatures[J],2021,5(2).
APA	van Maldegem L.M..,Nettersheim B.J..,Leider A..,Brocks J.J..,Adam P..,...&Hallmann C..(2021).Geological alteration of Precambrian steroids mimics early animal signatures.Nature Ecology & Evolution,5(2).
MLA	van Maldegem L.M.,et al."Geological alteration of Precambrian steroids mimics early animal signatures".Nature Ecology & Evolution 5.2(2021).