It also appears that the divergence of the three groups took place in the Paleozoic or early Mesozoic (around 250 million years ago), before the breakup of the supercontinent Pangaea and soon after their divergence from the lobe-finned fish.
ɪɾ ˈɔːlsoʊ ɐpˈɪɹz ðætðə daɪvˈɜːdʒəns ʌvðə θɹˈiː ɡɹˈuːps tˈʊk plˈeɪs ɪnðə pˌeɪliːoʊzˈoʊɪk ɔːɹ ˈɜːli mˌɛsəzˈoʊɪk ɚɹˈaʊnd tˈuːhˈʌndɹɪd fˈɪfti mˈɪliən jˈɪɹz ɐɡˈoʊ, bᵻfˌoːɹ ðə bɹˈeɪkʌp ʌvðə sˌuːpɚkˈɑːntɪnənt pændʒˈiə ænd sˈuːn ˈæftɚ ðɛɹ daɪvˈɜːdʒəns fɹʌmðə lˈoʊbfˈɪnd fˈɪʃ.