Qadarka roobab ee lagu cabbiray dhukayga

Qaddarka roobab ee lagu cabiray dhukunta dhirta dhulka ayaa iftiimisay inbadan qaababka cimilada ee kumanaankii sano ee la soo dhaafay, taas oo ku fidinaysa daraasadda liidata ee qaababka cabbirka diiwaanka fosil.