Earliest eukaryote? (Introduction)
Cell nucleus was a late comer to life. Are these fossils and could they have a nucleus?-http://blogs.scientificamerican.com/artful-amoeba/2013/06/27/is-this-spindly-fossil-a-3-billion-year-old-eukaryote/?WT_mc_id=SA_DD_20130627
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