Unit 3 Review Flashcard

Front

What does 'petrified' mean in terms of fossils?

Back

Turned into stone.

Front

Which process forms fossils?

Back

Mineralization.

Front

True or False: Most fossils form when organisms that die become buried in sediments.

Back

True.

Front

During which period did the first jawless fish form?

Back

Ordovician Period.

Front

During which period did the Rocky Mountains form?

Back

Tertiary Period.

Front

What is a fossil?

Back

A preserved remains or traces of ancient organisms.

Front

What is mineralization?

Back

The process by which organic material becomes fossilized through the replacement of organic material with minerals.

Front

What are sediments?

Back

Small particles of rock and soil that accumulate over time.

Front

What is the significance of the Ordovician Period in paleontology?

Back

It marks the time when the first jawless fish appeared.

Front

What geological event occurred during the Tertiary Period?

Back

The formation of the Rocky Mountains.