Stratigraphy: The Stomatolite Record
Archean: In the beginning there was rocks

Archean Banded Iron Formation with stromatolitc laminations (
  • earliest known stromatolites originated from several localities, and date from 3.5 BA, (Warrawoona Group of Western Australia) 
  •  generally are rare in the Archean.  geologically, the Archean environment did not favour the development or the preservation of stromatolites 

Pillinging Tuff, cut face shows a microbioherm (Walter, 1972)