The oldest known eukaryotes, living around 1.75 billion years ago, were largely restricted to oxygenated bottom waters, only expanding into planktonic habitats during the Neoproterozoic Era (from a billion to 540 million years ago)🧪 See new study published in Nature👇
www.nature.com/articles/s41...
Integrated palaeontological, sedimentological and geochemical analyses of ancient rocks from Australia show that early eukaryotes were largely restricted to oxygenated benthic habitats, probably posse...