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  Ancient steroids establish the Ediacaran fossil Dickinsonia as one of the earliest animals

Bobrovskiy, I., Hope, J. M., Ivantsov, A., Nettersheim, B. J., Hallmann, C., & Brocks, J. J. (2018). Ancient steroids establish the Ediacaran fossil Dickinsonia as one of the earliest animals. Science, 361(6408), 1246-1249. doi:10.1126/science.aat7228.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0002-44D5-1 Version Permalink: https://hdl.handle.net/21.11116/0000-000A-4014-7
Genre: Journal Article

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 Creators:
Bobrovskiy, Ilya, Author
Hope, Janet M., Author
Ivantsov, Andrey, Author
Nettersheim, Benjamin J.1, Author           
Hallmann, Christian1, Author           
Brocks, Jochen J., Author
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1Research Group Organic Paleo-Biogeochemistry, Dr. C. Hallmann, Max Planck Institute for Biogeochemistry, Max Planck Society, ou_1497763              

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 Abstract: The enigmatic Ediacara biota (571 million to 541 million years ago) represents the first
macroscopic complex organisms in the geological record and may hold the key to our
understanding of the origin of animals. Ediacaran macrofossils are as “strange as life on
another planet” and have evaded taxonomic classification, with interpretations ranging from
marine animals or giant single-celled protists to terrestrial lichens. Here, we show that lipid
biomarkers extracted from organically preserved Ediacaran macrofossils unambiguously
clarify their phylogeny. Dickinsonia and its relatives solely produced cholesteroids, a
hallmark of animals. Our results make these iconic members of the Ediacara biota the oldest
confirmed macroscopic animals in the rock record, indicating that the appearance of the
Ediacara biota was indeed a prelude to the Cambrian explosion of animal life.

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 Dates: 20182018-09-212018
 Publication Status: Issued
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 Identifiers: Other: BGC2921
DOI: 10.1126/science.aat7228
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Title: Science
Source Genre: Journal
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Publ. Info: Washington, D.C. : American Association for the Advancement of Science
Pages: - Volume / Issue: 361 (6408) Sequence Number: - Start / End Page: 1246 - 1249 Identifier: ISSN: 0036-8075
CoNE: https://pure.mpg.de/cone/journals/resource/991042748276600_1