“…The dates obtained for brown bears from the Martina Cave (Bohemian Karst) agree with previously published data (Wagner et al 2016). In most cases, cultural archaeological levels containing brown bear remains are well dated, and ages are consistent, as in the case of Gravettian sites, such as Dolní Věstonice 1 and 2, Pavlov, and Předmostí (Musil 1959(Musil , 1967(Musil , 1994b(Musil , 1997a(Musil , 2003a(Musil , 2003b(Musil , 2018Wojtal et al 2012). Some dates obtained for calcined bones, such as those from the Jáchymka Cave (Poz-89020) and Martina Cave (Poz-80462, Poz-86748, Poz-86749), yielded collagen lower than 1%, and the validity of these dates was restricted.…”