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300 Ma U Pennsylvanian

by Melissa Donovan | Dec 16, 2025

300 Ma U Pennsylvanian

Latest Publications

Ancient Landscapes of the Colorado Plateau
Available from Grand Canyon Conservancy

Ancient Landscapes of Western North America
Available from AMAZON

Allow yourself to be taken back into deep geologic time when strange creatures roamed the Earth and Western North America looked completely unlike the modern landscape.

© Deep Time Maps™ 2025

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