History of the Earth, Rocks, and Minerals

Front

Preserved remains or trace of a living organism

Back

Fossil

Front

Sedimentary layers of rock

Back

Rock Strata

Front

Kingdom that thrived after dinosaur extinction

Back

Mammals

Front

Oldest sedimentary rock layers at the bottom

Back

Law of Superposition

Front

Age of Earth according to Paleontologists

Back

4.6 billion years old

Front

Deeper rock layers

Back

Older rocks

Front

Time scale of Earth History

Back

Geologic Time Scale

Front

First life on land

Back

Paleozoic

Front

Disappearance of a species

Back

Extinction

Front

Paleozoic, Mesozoic, Cenozoic

Back

Eras