The Cenozoic started about 65 million years ago, with the end of the dinosaurs, and continues to this day.
It is sometimes called the "Age of Mammals" because mammals went from being small shrew-like and possum-like critters through an adaptive radiation to become the diverse group we see today, with horses and camels, and whales and mice and bats - all groups that evolved during the Cenozoic.
Since we are still living in the Cenozoic period, everything that has to do with human history and prehistory, from our evolution from apes through the development of tools and fire to the Roman Empire, Renaissance, Industrial Revolution, World Wars and modern day all occur in the Cenozoic.
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2007-01-03 03:23:53
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answer #1
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answered by Anonymous
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Cenozoic is the geological period between 65 million years and recent. It has 2 broad subdivisions : Tertiary and Quaternary.
The Tertiary period has 5 broad divisions. From old to young they are Palaeocene (65 - 54 m.y), Eocene (54 - 37 m.y.), Oligocene (37 - 25 m.y), Miocene (25-7 m.y) and Pliocene (7 - 2 m.y).
The Quaternary has 2 divisions, the older one is Pliestocene and the younger one is holocene or recent. Most Cenozoic formations are not deeply buried and are composed of thick marine and terrestrial sediments.
Important events of Cenozoic include the orogenies of Alps, Andes and the Himalayas.The present continental position has been achieved by the onset of Tertiary. Another important event is the Great Ice Age during Pleistocene.
The luxuriant growth of plants we see today evolved mostly during this period. Most primates also evolved. Modern Man came in Holocene.
Cenozoic ix a big chapter, and a search in web will give you much more information.
2007-01-03 03:30:02
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answer #2
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answered by saudipta c 5
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The Cenozoic period is the current geologic time period. It covers the 65.5 million years since the dinosaurs went extinct and is ongoing. The Cenozoic period is divided into periods which are subdivided into epochs. We live in the Holocene epoch. This period is also the time when the continents moved into their current positions. It is also the age of mammals.
2007-01-03 03:25:53
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answer #3
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answered by K. C. 3
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