Paleozoic era

Front

What era did trilobites live in?

Back

Paleozoic era.

Front

Which era experienced the largest extinction event?

Back

Paleozoic era.

Front

What type of life dominated the Precambrian Time?

Back

Bacteria.

Front

What were the first organisms to inhabit land environments?

Back

Plants.

Front

How long did the Paleozoic era last?

Back

291 million years.

Front

What major event marks the end of the Paleozoic era?

Back

The Permian-Triassic extinction event.

Front

What are the three main periods of the Paleozoic era?

Back

Cambrian, Silurian, and Devonian.

Front

What significant development occurred during the Cambrian period?

Back

The 'Cambrian Explosion' of diverse life forms.

Front

Which group of animals first appeared in the Paleozoic era?

Back

Fish.

Front

What type of plants first appeared during the Paleozoic era?

Back

Seedless vascular plants.