Archaeozoic aeon

arc·haeo·zoi·caeon

uncommon

noun

the time from 3,800 million years to 2,500 million years ago; earth''s crust formed; unicellular organisms are earliest forms of life

Synonyms

archaeopteryx Archaeopteryx lithographica archaeornis Archaeornithes archaeozoic archaic archaicism archaise archaism archaistic

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