structural:scholar_edition
Andrewsarchus, meaning "Andrews' ruler", is an extinct genus of artiodactyl that lived during the Middle Eocene in China. It contains two species, A. mongoliensis and A. crassum. It was formerly placed in the families Mesonychidae or Arctocyonidae, but is now the sole member of a distinct family, Andrewsarchidae, and may have been a distant relative of entelodonts. Known from a largely complete skull, most of a lower jaw and isolated teeth, it is notable for being historically reputed as the largest terrestrial, carnivorous mammal.