Fossils 2

Match it! Select the correct answer from the pull down...Good luck!

What is a missing layer of rock in a sequencing parallel rock layer?

What is a fossil formed by an animal's movement?

During which era did birds and small mammals begin to evolve?

Which era are we in now?

What is the process in which minerals replace tissues?

What is the process of figuring out how old an object is?

What is a preserved remains or other evidence of an organism?

What is a break in the geologic record?