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WikiPedia: Spriggina http://www.governmentgazette.sa.gov.au/sites/defau... http://www.samuseum.sa.gov.au/Journals/TRSSA/TRSSA... http://images.google.ca/images?hl=en&q=Spriggina&b... http://fossilworks.org/bridge.pl?a=taxonInfo&taxon... http://www.irmng.org/aphia.php?p=taxdetails&id=133... http://toolserver.org/~verisimilus/Timeline/Timeli... https://web.archive.org/web/20070929094012/http://... https://www.gbif.org/species/2318874 https://www.marinespecies.org/aphia.php?p=taxdetai...