When was the eocene geological
period?
The eocene
geological period began about 35 million years ago, and lasted between 15
million and 17 million years. During this period animals, fishes and plants
made enormous evolutionary progress, in some cases coming very close to those
familiar today.
During the
eocene period the climate got warmer, and many plants became extinct. But new
plants, especially flowering varieties, evolved, giving the world's vegetation
a more modern appearance.
On land many
familiar mammals appeared to replace more primitive animals now dying out.
Horses were abundant, there were also tapirs and rhinoceroses. Pigs and camels
began to appear but increased only slowly, because of constant attacks from the
now extinct sabre-toothed tigers.
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