Mutsara wokutanga: Iri iboka revanhu vanoita zvepabonde rinounganidza marudzi azvino uno zvikuru kubva kuBurgess Shale kusvika kumasvingo ekare. Mutsara 2: Iboka re paraphyletic rinounganidza marudzi azvino uno zvikurusa kubva kuBurgess Shale kuenda kumasipongi akare. Mubvunzo: Mutsara wokutanga nomutsara wechipiri unoreva chinhu chimwe chete here? Hungu kana kuti Aiwa?
Hungu