This period, known as the Cretaceous, was not a mere prelude to the age of humans but a dynamic and flourishing chapter in Earth’s 4. The Shifting Continents: A Map in Flux The physical arrangement of the world’s continents was dramatically different.
Cretaceous World 100 Million Years Ago: A Scene of Dynamic Landscapes and Life
Yet, if one could rewind the clock approximately 100 million years ago, the world would appear unrecognizable, a planet operating under alien rules of geography, climate, and biology. The Tethys Ocean, for instance, acted as a massive thermal reservoir, moderating temperatures between the northern continents.
Continental Drift and Its Consequences The movement of these continents reshaped ocean currents and global climate patterns, creating unique environments. Polar regions were ice-free, and sea levels were exceptionally high, flooding continental interiors and creating vast, shallow inland seas that split continents like North America into isolated landmasses.
Cretaceous World 100 Million Years Ago: A Scene of Continents and Climate
This intense warmth was driven by high concentrations of carbon dioxide and methane in the atmosphere, creating a potent greenhouse effect. Antarctica, far from the frozen pole, was a temperate, forested landscape, hosting diverse flora and fauna that thrived in a climate more akin to modern-day Washington or southern Australia.
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