Among other races, Vulcans utilised coleopteric warp drive until at least the 22nd century. It was employed on their starship classes such as the Suurok-class and D'Kyr-class. (ENT episodes: "Breaking the Ice", "Future Tense" et al) Humans also used the drive on some of their starships. The United Earth Space Probe Agency developed a starliner with coleopteric warp drive in the mid-to-late 21st century based on Vulcan designs of the same time period. (TOS novel: Ex Machina, ST reference: Star Trek Maps)