Putanga 1: He rōpū paraphyletic e kohikohi ana i ngā momo hōu rawa mai i te Burgess Shale ki ngā pīpī tawhito. Putanga 2: He rōpū paraphyletic e kohikohi ana i ngā momo hōu rawa mai i te Burgess Shale ki ngā pīpī tawhito. Pātai: He ōrite te tikanga o te rerenga 1 me te rerenga 2? He Ae, he Kore rānei?
Āe, āe