Some fossils, called index fossils, are particularly useful in correlating rocks.
For a fossil to be a good index fossil, it needs to have lived during one specific time period, be easy to identify and have been abundant and found in many places. If you find ammonites in a rock in the South Island and also in a rock in the North Island, you can say that both rocks are Mesozoic.
If she works, she needs time to have rest and time for vacation.
Polish woman is ready to give her love and kindness to beloved man and family, but she is not ready to sacrifice herself completely.