An additional complicating factor is the lack of agreement on the subgroupings of Afroasiatic (see Further subdivisions) – this makes associating archaeological evidence with the spread of Afroasiatic particularly difficult.
ɐn ɐdˈɪʃənəl kˈɑːmplᵻkˌeɪɾɪŋ fˈæktɚɹ ɪz ðə lˈæk ʌv ɐɡɹˈiːmənt ɔnðə sˈʌbɡɹuːpɪŋz ʌv ˌæfɹoʊˌeɪsɪˈæɾɪk sˈiː fˈɜːðɚ sˌʌbdᵻvˈɪʒənz ðɪs mˌeɪks ɐsˈoʊsɪˌeɪɾɪŋ ˌɑːɹkiːəlˈɑːdʒɪkəl ˈɛvɪdəns wɪððə spɹˈɛd ʌv ˌæfɹoʊˌeɪsɪˈæɾɪk pɚtˈɪkjʊlɚli dˈɪfɪkəlt.