Definition: The word "Antechinomys" is an extinct genus in the family Antechimorini, meaning "butterfly-like" insectoid creatures from a time period when insects were abundant on Earth's surface, about 400 to 255 million years ago. They lived during the Late Devonian or Early Carboniferous. The antechinomys genus had a wide range of characteristics that indicate they were a type of butterfly-like insect. These creatures were also known for their unique adaptations for flight and swimming, which included large wings with four ciliated surfaces (the "chirp"), a complex set of muscles controlling flight, and specialized gills to capture prey. Their habitat was likely the dense forests and grasslands that covered much of Europe during this time. The ants had long, flexible legs that could be used for climbing and maneuvering over land. This life style allowed them to escape predators and survive in harsh environments. The antechinomys were also notable for their complex social structures, including multiple generations of the same species. They likely lived as a monophyletic (a single group) species with no interbreeding between genera. Understanding these details about Antechimorini creatures would provide insights into how insects evolved from simple, solitary animals to more sophisticated organisms capable of flight and diverse ecological niches.