ɐkˈoːɹdɪŋ tʊ ˌænθɹəpˈɑːlədʒˌɪst ɹˈɑːbɪn bˈɛk ðə kɹˈɔs moʊtˈiːf ɪn jˈeɪəmˈɑːmɐ stˈoʊn kˈɑːɹvɪŋ mˌeɪhɐv bˌɪn ɐ pɹɪkˈɜːsɚɹ ʌvðə tˌɪwɐnˈɑːkuː ˈændiən kɹˈɔs.
According to anthropologist Robin Beck the cross motif in Yaya-Mama stone carving may have been a precursor of the Tiwanaku Andean cross.