3 ms·
Correct, the stratigraphic record is 3.5 billion years old. At least if this (https://xkcd.com/1194/ https://xkcd.com/1194/) xkcd is to be truested.
by MauranKilom 7y ago
Correct, the stratigraphic record is 3.5 billion years old. At least if this (https://xkcd.com/1194/ https://xkcd.com/1194/) xkcd is to be truested.