Order Lepidodendrales is a classification of extinct plants that lived during the Carboniferous period, characterized by their tree-like appearance and polygonal stems. Synonyms for this order include Lepidodendraceae, Lepidophyta, and Scale trees. These ancient plants were abundant in the coal swamps of the Carboniferous era and played a significant role in the formation of coal deposits. They were also important producers of oxygen, which contributed to the development of complex life on Earth. Despite their extinction, the fossils of these plants have provided valuable insights into the history of our planet and continue to fascinate researchers and enthusiasts alike.