The order Thelebolales is a group of fungi within the class Leotiomycetes, primarily known for their saprobic lifestyle, meaning they obtain nutrients by decomposing organic matter. Many species in this order are adapted to extreme environments, including cold or nutrient-poor habitats, and some are commonly found in dung, soil, or decaying plant material. Thelebolales fungi often produce small, cup-shaped or globular fruiting bodies and have ascospores that can survive harsh conditions, aiding in their dispersal. While not typically of major economic importance, they play a critical ecological role in nutrient cycling and decomposition.