cca. 4700 million years (from Precambrian to Extant),

Beverly Erlebacher schreef
Umm, maybe I'm completely out of date, but I didn't know there were any
Hadean rocks around to find fossils in. Just how old are the oldest rocks,
these days, and just how old are the oldest fossils (presumably of
bacteria-like things)?

+ + +
Of course it is very easy to give a complete overview of a time period of
which no known material exist?
PvR