Geologic Time (ES3A) Practice Test

I can interpret rock formations of the Pacific Northwest as evidence of past geologic events and processes.

Directions: Below is an Earth history timeline divided into fourths. Place these events in Earth history in the proper time line column and within a column in order from oldest to youngest:
 

first trilobites first birds oldest rocks moon forms
Earth forms age of oldest rock first bacteria (1st fossils) first jellyfish
first dinosaurs first mammals first plants first humans
4600 mya       3450                 2300                 1150                   Now
|----------------|-------------------|---------------------|---------------------|
|                |                   |                     |                     |
|                |                   |                     |                     |
|                |                   |                     |                     |
|                |                   |                     |                     |
|                |                   |                     |                     |