解説†Tyrannophontes acanthocercus Unt Karbon Bear Gulch Montana USA Ar886a.jpg
English: The fossil mantis shrimp †Tyrannophontes acanthocercus from the Mississippian (Serpukhovian) Heath Formation of Bear Gulch, Montana USA. Private collection oilshale (note that this species has been moved to the genus Daidal)
Deutsch: Der fossile Heuschreckenkrebs †Tyrannophontes acanthocercus aus dem Karbon (Serpukhovium) der Heath Formation von Bear Gulch, Montana, USA. Privatsammlung oilshale