Does anybody know on which natural criteria Calakmul was inscribed recently when it was made a mixed site? As far as I know, it was originally inscribed in 2002 under cultural criteria 1, 2, 3 and 4, which is still mentioned on the English wikipedia (although the German wikipedia only says 3 and 4, and the Spanish one says 2, 3, 4 and 6). The Unesco site also says 2, 3, 4 and 6, but shouldn't a mixed site have at least one natural criterion?
Not a huge problem, but it just struck me as odd. | 
