Before history, Archaean Eon (4000-2500 mya), Precambrian Superion (4560-541 mya)
Category: Precambrian Superion (4560-541 mya)
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Before history, Evolution of Life (4560 mya-present), Palaeozoic Era (541-252 mya), Precambrian Superion (4560-541 mya), Proterozoic Eon (2500-541 mya)
Evolution of Life, Precambrian Superion: Proterozoic Eon (2500-541 mya), Eukaryotes
Before history, Evolution of Life (4560 mya-present), Hadean Eon (4560-4000 mya), Precambrian Superion (4560-541 mya)