[
    [, label=Deuterostome, dot
        [Echinodermata]
        [, label=Notochord, bar=purple
            [Cephalochordata, comment=Chordates]
            [
                [Urochodata]
                [, label=Head, bar=purple
                    [Myxini, comment=Craniates]
                    [, label=Vertebral column, bar=purple
                        [Petromyzontida, comment=Vertebrates]
                        [, label={Jaws, mineralized skeleton}, bar=purple
                            [Chondrichthyes, comment=Gnathostomes]
                            [, label={Lungs or lung derivatives}, bar=purple
                                [Actinopterygii, comment=Osteichthyans]
                                [, label=Lobed fins, bar=purple
                                    [Actinistia, comment=Sarcopterygii]
                                    [
                                        [Dipnoi]
                                        [, label=Legs, bar=purple
                                            [Amphibia, comment=Tetrapods]
                                            [, label=Amniotic egg, bar=purple
                                                [Reptilia, comment=Amniotes]
                                                [Mammalia, label=Milk, bar=purple]
                                            ]
                                        ]
                                    ]
                                ]
                            ]
                        ]
                    ]
                ]
            ]
        ]
    ]
]