An animal or plant preserved in rock
Fossil
Someone who studies the history of the Earth
Paleontologist
In a way that does not take a lot of time
Briefly
Roughly; about
Approximately
Very large or heavy
Massive
The process of finding things similar or different
Comparison
To begin to grow
Sprout
Extra
Additonal
Sharing qualities with something not the same
Similar
To appear in the world
Exist
Most likely
Possible
A small piece of a larger object
Fragment
Very old
Ancient