Source: wikibot/azoic-hypothesis
= Azoic hypothesis
{wiki=Azoic_hypothesis}
The Azoic hypothesis is a historical concept in geology and paleontology that posited that no life existed on Earth during the Precambrian era, which spans from the formation of the Earth around 4.6 billion years ago to the start of the Cambrian period about 541 million years ago. The term "azoic" means "without life.