The Pliocene Is A(n)

Q68: The oldest era in the Phanerozoic eon

Q69: The Mesozoic is a(n)<br>A) epoch.<br>B) era.<br>C) eon.<br>D)

Q70: Fossils that are useful in correlating rock

Q71: The Petrified National Forest is found in

Q72: Geologists have principally used which class of

Q74: The Quarternary is a(n)<br>A) epoch.<br>B) era.<br>C) eon.<br>D)

Q75: We live in the epoch called the<br>A)

Q76: The Cenozoic era began about how many

Q77: The Petrified National Forest is found in

Q78: The term age of ancient life is