Did Mammals Become Dominant?
In the Early Cenozoic Era, After the Dinosaurs Became Extinct, the Number and Diversity of Mammals Exploded. .. . It Took Several Million Year's for the...
In the early Cenozoic era, after the dinosaurs became extinct, the number and diversity of mammals exploded. ... It took several million years for the mammals to evolve even moderately large body sizes, and the world they inherited was a different place from the one the dinosaurs had dominated.
Why did mammals become dominant on Earth?
The mass extinction that struck at the end of the Cretaceous was one of the major events in earth's history that greatly affected evolution by pruning back the tree of life, and it was in the wake of the extinction that mammals became the dominant vertebrates on land.
When did mammals become the most dominant organism?
During the Cenozoic the mammals reached their peak of evolution, producing a tremendous variety of species, many of them very large. The segment of the fauna containing these large creatures (those weighing more than about 100 pounds) is called the Megafauna.
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