Classification varies according to the preferred phylogeny of the author and whether they use a stem-based or a node-based classification.
klˌæsɪfɪkˈeɪʃən vˈɛɹiz ɐkˈoːɹdɪŋ tə ðə pɹɪfˈɜːd faɪlˈɑːdʒɛni ʌvðɪ ˈɔːθɚ ænd wˈɛðɚ ðeɪ jˈuːz ɐ stˈɛmbˈeɪst ɔːɹ ɐ nˈoʊdbˈeɪst klˌæsɪfɪkˈeɪʃən.