Category:Rocks in Colorado by geochronology

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Precambrian Phanerozoic rocks in Colorado
Preceded by Proterozoic Eon
Paleozoic Era Mesozoic Era Cenozoic Era
Cambrian Ordovician Silurian Devonian Carboniferous Permian Triassic Jurassic Cretaceous Paleogene Neogene 4ry

Subcategories

This category has the following 38 subcategories, out of 38 total.