Purely Precambrian, pure or mixed Eons (based on Wikipedia, List of Fossil Sites)

Proterozoic

Oceania
Ediacara Hills	Australia: South Australia (Flinders Ranges)	Ediacaran

Archaean

Oceania
Apex Chert	Australia: Western Australia (Marble Bar)

Archaean – Proterozoic

North America
Gunflint Chert	Canada: western Ontario & USA: Minnesota (Gunflint Range)	Upper Archaean – Lower Proterozoic