The Great Land-Emergence Stage

Audio File    THE VEGETATIVE LAND-LIFE PERIOD        THE AGE OF FISHES   For long periods, the sea has been comparatively victorious in the agelong struggle between land and water, but times of land victory are just ahead. And the continental drifts have not proceeded so far but that, at times, practically all of […]

The First Continental Flood Stage — The Invertebrate Animal Age

Audio File   Accompanied by little or no volcanic action, the periodic phenomena of land elevation and land sinking characteristic of these times were all gradual and nonspectacular. Throughout all of these successive land elevations and depressions the Asiatic mother continent did not fully share the history of the other land bodies. It experienced many […]