The Carboniferous period, which lasted from about 359 to 299 million years ago, is an important time in Earth'shistory. It is known for the widespread development of forests and the eventual formation of coal deposits, hence the name "Carboniferous," which means "coal-bearing."
Key Points to Remember
The Carboniferous period is divided into two parts: the Mississippian and the Pennsylvanian.
During the Carboniferous period, Earth's landmasses were joined together in the supercontinent Pangaea.
These forests were dominated by giant ferns, club mosses, and horsetails, which eventually formed the coal deposits we use today.
The high oxygen levels during the Carboniferous period allowed for the evolution of large insects, such as dragonflies with wingspans of up to 30 inches.