Fossils and Geologic Time

Front

What is a fossil?

Back

The remains or physical evidence of an organism preserved by geologic processes.

Front

Which layer of rock is oldest?

Back

Layer A.

Front

What era did dinosaurs rule the Earth?

Back

Mesozoic Era.

Front

Which is the most recent era of geologic time?

Back

Cenozoic Era.

Front

What does the fossil record provide evidence for?

Back

The history of life on Earth.

Front

What is the Precambrian era?

Back

The earliest part of Earth's history, before the Paleozoic era.

Front

What is the Paleozoic era known for?

Back

The emergence of fish, amphibians, and the first reptiles.

Front

What is the Cenozoic era known for?

Back

The age of mammals and the rise of humans.

Front

What are index fossils?

Back

Fossils used to define and identify a particular time period.

Front

What is stratigraphy?

Back

The study of rock layers and layering.