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https://www.academia.edu/35295613/INTEGRATING_PALEOBOTANICAL_PALEOSOL_AND_STRATIGRAPHIC_DA…

…ly during originations. For example, Mollisols (USDA) are Earth-life transition events either in association found exclusively associated with grassland with major climatic shifts or with major vegetation, so prior to the evolution of grasses in extinction, extirpation, or evolut…