When did angiosperms become dominant in many parts of the world?

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Filigreed snake gourd flower — Angiosperm Snake gourd (*Trichosanthes cucumerina*) in bloom.

Angiosperms (flowering plants) began their rapid diversification during the Cretaceous Period (approximately 145 million to 66 million years ago).1

While they likely formed dominant pockets of vegetation in certain coastal tropical and warm temperate areas by the beginning of the Cenomanian Age (about 100.5 million to 93.9 million years ago), they achieved widespread dominance as the primary form of vegetation in many parts of the world by the middle to late Cenomanian, roughly 95 million to 93.9 million years ago. By the end of the Mesozoic Era, angiosperms had successfully supplanted many primitive plant groups to become the dominant land flora, a status they maintain today.213