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Bisnorgammacerane traces predatory pressure and the persistent rise of algal ecosystems after Snowball Earth

van Maldegem, Lennart; Sansjofre, Pierre; Weijers, Johan W H; Wolkenstein, Klaus; Strother, Paul K; Wörmer, Lars; Hefter, Jens; Nettersheim, Benjamin J; Hoshino, Yosuke; Schouten, Stefan; Sinninghe Damsté, Jaap S; Nath, Nilamoni; Griesinger, Christian; Kuznetsov, Nikolay B; Elie, Marcel; Elvert, Marcus; Tegelaar, Erik; Gleixner, Gerd; Hallmann, Christian


Eukaryotic algae rose to ecological relevance after the Neoproterozoic Snowball Earth glaciations, but the causes for this consequential evolutionary transition remain enigmatic. Cap carbonates were globally deposited directly after these glaciations, but they are usually organic barren or thermally overprinted. Here we show that uniquely-preserved cap dolostones of the Araras Group contain exceptional abundances of a newly identified biomarker: 25,28-bisnorgammacerane. Its secular occurrence,...[Show more]

CollectionsANU Research Publications
Date published: 2019-01-29
Type: Journal article
Source: Nature communications
DOI: 10.1038/s41467-019-08306-x
Access Rights: Open Access


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