This period has been nicknamed the "age of amphibians" or the "age of coal swamps".

It contributed greatly to the coal swamps of the Cenozoic era.

The ensuing Carboniferous period is also known as "age of amphibians" or the "age of coal swamps".

These conditions apparently had little effect in the deep tropics, where lush coal swamps flourished within 30 degrees of the northernmost glaciers.

Most of the sharks were marine, but the Xenacanthida invaded fresh waters of the coal swamps.

This resulted in a loss of coal swamps that were once common at higher latitudes.

Later, the acanthodians colonized fresh waters, and thrived in the rivers and lakes during the Devonian and in the coal swamps of Carboniferous.

Lepidodendron likely lived in the wettest parts of the coal swamps that existed during the Carboniferous period.

Arthropleurids lived in the moist coal swamps that were common at the time and may have burrowed in the undergrowth.

Arthropleurids became extinct as the climate became drier and the coal swamps dried out.