海
物纲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.
这种独特的身体造型与现
肠鳃类
物几无二致，从而表明这
早寒武世物是地球上物门中已知最古老的祖先类型。
，部分未经过人工审核，其表达内容亦不代表本软件的观点；若发现问题，欢迎向我们指正。
