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You have requested access to download the full text of the source (SourceID: 332897):
Zumberge, J. A.; Love, G. D.; Cárdenas, P.; Sperling, E. A.; Gunasekera, S.; Rohrssen, M.; Grosjean, E.; Grotzinger, J. P.; Summons, R. E. (2018). Demosponge steroid biomarker 26-methylstigmastane provides evidence for Neoproterozoic animals. Nature Ecology & Evolution. |