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机译:为新元古代动物提供了证据
CALTECH, Div Geol & Planetary Sci, Pasadena, CA USA;
Uppsala Univ, Dept Med Chem, Uppsala, Sweden;
MIT, Dept Earth Atmospher & Planetary Sci, Cambridge, MA USAStanford Univ, Dept Geol Sci, Stanford, CA 94305 USACent Michigan Univ, Dept Earth & Atmospher Sci, Mt Pleast, MI USAGeosci Australia, Canberra, ACT, AustraliaUniv Calif Riverside, Dept Earth Sci, Riverside, CA 92521 USA;
sedimentary rocks; Sterols; SteroidsTerminiBiological MarkersSkeletonsAnimaliaprecursorsTrace amountsNeoproterozoicoils;
机译:Demosponge类固醇生物标志物26-甲基ksigmastane为Neoproterozoic动物提供了证据