Which of the following is commonly called 'Age of mammals'?
A
Mesozoic
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B
Cenozoic
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C
Palaeozoic
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D
Azoic
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Solution
The correct option is D Cenozoic Cenozoic era is known as the age of mammals because the largest land animals existing during that time were mammals. The extinction of many groups allowed mammals to greatly diversify and dominate in that era.
Cave lions, sabre-toothed cats, cave bears, giant deer, woolly rhinoceroses, and woolly mammoths are some of the animals of cenozoic era.