Tisnimawen (Assaɣ usnan: Deuterostomia) d afel-stiref akk d temsartut n iɣersiwen deg wengaz n tsenzamalin s ddaw tgelda tanagzant deg tseldin timdudtins udem n tmenzimawen. Llan 3 n istirfen deg tesnimawen: Astirf n temzikrin (Timtegzitin d telmas-isTimsennenin am yetril, adeɣmus