This period, spanning from approximately 359 to 299 million years ago, is known for its vast swamps filled with giant ferns, horsetails, and lycopods. These plants created the conditions for the formation of massive coal deposits.
It was also during this time that reptiles, the first amniotes, evolved. This group of animals laid eggs on land and did not need to return to water to reproduce, allowing them to diversify and spread across the planet.
