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Home » Column A Column B Column C i) Coenozoic 2 – 65 mya Origin of vertebrates ii) Palaeozoic 500 – 165 mya Rise of egg laying mammals iii) Mesozoic 135 – 225 mya Reptiles dominant iv) Proterozoic 350 – 500 mya Trilobites dominant The correct match of Columns A, B and C is A) i B) ii C) iii D) iv
Column A Column B Column C i) Coenozoic 2 – 65 mya Origin of vertebrates ii) Palaeozoic 500 – 165 mya Rise of egg laying mammals iii) Mesozoic 135 – 225 mya Reptiles dominant iv) Proterozoic 350 – 500 mya Trilobites dominant The correct match of Columns A, B and C is A) i B) ii C) iii D) iv
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Column A Column B Column C i) Coenozoic 2 – 65 mya Origin of vertebrates ii) Palaeozoic 500 – 165 mya Rise of egg laying mammals iii) Mesozoic 135 – 225 mya Reptiles dominant iv) Proterozoic 350 – 500 mya Trilobites dominant The correct match of Columns A, B and C is A) i B) ii C) iii D) iv

Correct option:(C)

Solution:

  • Coenozoic era (65 million years ago) is also known as “age of mammals”.
  • It rise of first placental mammals, their diversification and evolution.
  • Palaeozoic era is marked by appearance of small marine reptiles and largest mass extinction.
  • Mesozoic era (from 230 million yrs ago to 63 million yrs ago) is the era of medieval life and is also known as age of reptiles.
  • Proterozoic era (2000 million yrs ago) is marked by build up of oxygenic atmosphere and appearance of first eukaryotic cell.
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