Evidence from biomarkers and molecular clocks points to the existence of sponges tens of millions of years before their earliest fossil remains. Fossils from South Australia may narrow that gap.
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MARC LAFLAMME
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Laflamme, M. Wringing out the oldest sponges. Nature Geosci 3, 597–598 (2010). https://doi.org/10.1038/ngeo945
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DOI: https://doi.org/10.1038/ngeo945
