The special body plan of Yunnanozoon is almost identical to that of the living enteropneust hemichordate Balanoglossus,which suggests that the earlyCambrian creature is ancestral to the hemichordates.
这种独特的身体造生肠鳃类半索动
几无二
,从而表明这个早寒武世动
球上半索动
门中已知最古老的祖先类
。