EUKARYOTES – 2.7 BILLION YEARS AGO
like creatures—must have evolved by 2.7 billion years ago. The oldest eukaryotic body fossil is the multicellular alga, Grypania spiralis. Coiled Grypania is found as thin films of carbon in the 2.1 billion-year-old Negaunee iron forma-tion at the Empire Mine near Ishpeming, Michigan. The fossils are coiled forms of marine ................
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