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Question
Major radiation of mammals, birds and pollinating insects took place in which epoch?
Major radiation of mammals, birds and pollinating insects took place in which epoch?
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Solution
The correct option is D Paleocene
Radiation is evolution of organisms in different directions from a common ancestry involving adaptation to different habitats. Cretaceous mass extinction wiped out giant reptiles but small mammals, birds and insects survived. The global climate warming and emptied earth surface, due to destruction of dinosaurs led to major radiation of mammals, birds and insects during Palaeocene epoch. Palaeocene epoch of Phanerozoic era is marked by radiation of small mammals into monotremes, marsupials and placental mammals, diversification of birds into small owl like birds, perching birds and large carnivorous birds and radiation of pollinating insects. so, the correct answer is 'Paleocene'
Radiation is evolution of organisms in different directions from a common ancestry involving adaptation to different habitats. Cretaceous mass extinction wiped out giant reptiles but small mammals, birds and insects survived. The global climate warming and emptied earth surface, due to destruction of dinosaurs led to major radiation of mammals, birds and insects during Palaeocene epoch.
Palaeocene epoch of Phanerozoic era is marked by radiation of small mammals into monotremes, marsupials and placental mammals, diversification of birds into small owl like birds, perching birds and large carnivorous birds and radiation of pollinating insects.
so, the correct answer is 'Paleocene'
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