https://planeta42.com/archeology/timescale/
Geologic Time Scale | Archaeology Learning Game
Place the animals in the correct geologic period. Archaeology exercise to study the geologic time periods. Fun educational game, suitable for online lessons,...
geologic time scalearchaeologylearninggame
https://geology.com/usgs/geologic-time-scale/
Geologic Time Scale - Major Divisions of Geologic Time Chart
Divisions of geologic time approved by the U.S. Geological Survey Geologic Names Committee.
geologic time scalemajordivisionschart