Lepidodendron is an extinct genus of tree-like plants that thrived during the late Paleozoic era, particularly in the Carboniferous period, around 359 to 299 million years ago. These plants were part of the group known as lycophytes and could grow up to 30 meters tall. They had distinctive, scaly bark and produced cone-like structures for reproduction. Lepidodendron played a significant role in ancient ecosystems, contributing to the formation of coal deposits we find today. Their large, leafy branches and extensive root systems helped stabilize the soil in swampy environments, creating habitats for various organisms during their time on Earth.