Lizards have skulls with only one fenestra on each side, the lower bar of bone below the second fenestra having been lost.
lˈɪzɚdz hæv skˈʌlz wɪð ˈoʊnli wˈʌn fˈɛnɛstɹə ˌɔn ˈiːtʃ sˈaɪd, ðə lˈoʊɚ bˈɑːɹ ʌv bˈoʊn bᵻlˌoʊ ðə sˈɛkənd fˈɛnɛstɹə hˌævɪŋ bˌɪn lˈɔst.