Oldest Microfossils on Earth Warrawoona Group N Pole Dome Marble Bar WA 3 5 Ga Lowe Hoffman stromatolite a Warrawoona microfossil Grypania a possible multicellular eukaryote Negaunee Iron Formation Bangiomorpha a red alga Huntington Fm ngton Fm Tappania an algal spore from the Roper Group a testate amoeba from the Chuar Group embryos preserved in the Doushantou phosphorite Pteridinium l and Dickinsonia r two famous Vendobiota Olenellus a Cambrian trilobyte
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