Anthropocene epoch
Geologic time scale (GTS)
Cretaceous
Geologic time scale (GTS)Mesozoic
Holocene
Geologic time scale (GTS)
Little Ice Age
Geologic time scale (GTS)Middle Ages
Neogene period
Geologic time scale (GTS)
Phanerozoic
Geologic time scale (GTS)
Precambrian eon
Geologic time scale (GTS)
Proterozoic eon
Geologic time scale (GTS)
Geologic time scale - Wikipediahttps://en.wikipedia.org/wiki/Geologic_time_scale
Geologic time scale (GTS)
ICS - Chart/Time Scalehttp://stratigraphy.org/index.php/ics-chart-timescale
Geologic time scale (GTS)
The Second International Geological Congress, Bologna, 1881http://iugs.org/uploads/images/PDF/2nd%20IGC.pdf
Geologic time scale (GTS)

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Geologic time scale (GTS)
GeologyHistory, prehistory and geologic time