Geochronology Guides 


Many different parts of the world use local time scales that can be tricky to correlate to global time scales. Below are several guides for the marine realms of various parts of the world to help correlate local time terms to more globally accepted time terms


Geographic area
Author(s) Date published
Eastern Europe 1
Steininger & Rogl
Chesapeake Bay

Chesapeake Bay with NALMAs

Australia & New Zealand

Microfossil zones


Last Updated on November 2, 2006