Aim To clarify the post‐glacial biogeography of the Annamite and eastern Chinese ungulate faunas, and determine whether current understanding of Asian mammalian biogeography is biased by pseudo‐extinctions and pseudo‐endemism associated with a historical extinction filter. Location Modern‐day specimens of giant muntjac ( Muntiacus vuquangensis ) from the Annamite Mountains of Laos and Vietnam were compared with zooarchaeologic...