ɪn θˈɛɹəpsˌɪdz ɐdvˈænst sˈɪnɐpsˌɪdz ɪŋklˈuːdɪŋ mˈæməl, ðə dʒˈɔː ɪz sˈɪmplᵻfˌaɪd ˌɪntʊ ɐn ɑːɹtˌɪkjʊlˈeɪʃən bᵻtwˌiːn ðə dˈɛntɚɹi ænd ðə skwˈɑːməs pˈɑːɹt ʌvðə tˈɛmpɚɹəl bˈoʊn, ænd hˈɛns ɹᵻfˈɜːd tʊ æz ɐ dˈɛntɚɹiskwɑːmˈoʊzəl dʒˈɔː.
In therapsids (advanced synapsids including mammal), the jaw is simplified into an articulation between the dentary and the squamous part of the temporal bone, and hence referred to as a dentary-squamosal jaw.