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.
英
美
- 這種獨特的身體造型與現生腸鰓類(lèi)半索動(dòng)物幾無(wú)二致，從而表明這個(gè)早寒武世動(dòng)物是地球上半索動(dòng)物門(mén)中已知最古老的祖先類(lèi)型。
