Name three recent eras of geological time

The calender of earth's past history is called geological time scale.Name the four eras of geological timescale.

Name different geological eras of geological time scale of earth.

Name the era in the geological time scale when life had not yet originated on earth.

Match the following with references to geological time scale

Match the following with references to geological time scale

Correct sequence of eras in geological time scale are

Write the main features of plants & animals of mesozoic era of geological time scale.

Which of the following eras, in geological time scale corresponds to the period when life had not originated upon the earth?