Linked from
The 18 pages that link to Stromatolite, each with the reason it gives.
ArcheanRelated: Archean stromatolites are among the key contested records of early life.
PrecambrianBroader topic: Precambrian stromatolites preserve evidence of microbial ecosystems.
TravertineRelated: Some travertine deposits preserve microbial layering resembling stromatolites.
Microbial matBroader topic: Some stromatolites record successive growth of ancient microbial mats.