Timzikrin
| Timzikrin | |
|---|---|
 | |
| Tasensartut | |
| Tafel-gelda | Holozoa (fr)  |
| Tagelda | Animalia |
| Adu-tgelda | Bilateria |
| Adur | Chordata Bateson, 1885
|
Timzikrin neɣ Tizikranin (isem ussnan: Chordata) d adur n iɣersiwen i d-yekkan seg ufurk asnudran n tsendisin, akken i yeṭṭafar wadur-a afel-adur n tesnimawin. Isem-is yekka-d seg yiziker n uzagur igan d angul n ugergis i d-izgan ɣef yidis n uzagur n uɣersiw. Adur-a yegber seg kuẓ n tdurin: tixefzikrin (Cephalochordata), timezdeɣzikin (Vetulicolia, negrent), timkebrin (Tunicata) yakk d tnaɣlalin (Vertebrata), dɣa snat n tegrawin-a tineggura ṭṭafarent afurk asnudran n tsekduyin (Olfactores).
Adur-a issiliɣ-d yiwen seg waduren meqqren yakk deg tgelda n iɣersiwen, acku tegber ugar n 65000 n telmas, ayen i d-tt-iǧǧan ad tili d tagrawt tameqrant tis snat seld n teswermin. Dɣa i snat-nsent lant (sɛant) azal n 1.5 n imelyan n telmas, neɣ ayen yegdan 80% n telmas yettwassnen.