Forming FossilsGeologic Time |
What is geologic time? |
Geologic time is the immense span of time that has elapsed since Earth first formed—almost 4.5 billion years ago—to recent times.
Forming FossilsGeologic Time |
What is geologic time? |
Geologic time is the immense span of time that has elapsed since Earth first formed—almost 4.5 billion years ago—to recent times.