Fossils and geologic time

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

a cold blooded vertebrate that lives mostly on land with scaly skin

a cold blooded vertebrate that lives on land and in water with slimy skin

A fossil that can be used to identify a specific geologic time period.

A distinct segment of time in history with a particular specific event or characteristic.

a scientist who studies fossils

An organism that lacks a backbone

A record of the major events and diversity of life forms present in Earth's history

An organism that has a back bone