Alan D. Rooney, Justin V. Strauss, Alan D. Brandon, Francis A. Macdonald: A Cryogenian chronology: Two long-lasting synchronous Neoproterozoic glaciations. In: Geology. Band43, Nr.5, 1. Mai 2015, ISSN0091-7613, S.459–462, doi:10.1130/G36511.1.
G. D. Love, E. Grosjean, C. Stalvies u. a.: Fossil steroids record the appearance of Demospongiae during the Cryogenian period. In: Nature. Band457, Nr.7230, Februar 2009, S.718–21, doi:10.1038/nature07673, PMID 19194449.
[1] Van Maldegem et al.: Geological alteration of Precambrian steroids mimics early animal signatures. Nat. Ecol. Evol. (2020), doi:10.1038/s41559-020-01336-5.
nature.com
[1] Van Maldegem et al.: Geological alteration of Precambrian steroids mimics early animal signatures. Nat. Ecol. Evol. (2020), doi:10.1038/s41559-020-01336-5.
[2] Bobrovskiy, I. et al.: Algal origin of sponge sterane biomarkers negates the oldest evidence for animals in the rock record. Nat. Ecol. Evol. (2020).
nih.gov
ncbi.nlm.nih.gov
G. D. Love, E. Grosjean, C. Stalvies u. a.: Fossil steroids record the appearance of Demospongiae during the Cryogenian period. In: Nature. Band457, Nr.7230, Februar 2009, S.718–21, doi:10.1038/nature07673, PMID 19194449.
zdb-katalog.de
Alan D. Rooney, Justin V. Strauss, Alan D. Brandon, Francis A. Macdonald: A Cryogenian chronology: Two long-lasting synchronous Neoproterozoic glaciations. In: Geology. Band43, Nr.5, 1. Mai 2015, ISSN0091-7613, S.459–462, doi:10.1130/G36511.1.