Objective Priapulid belong to scalidophoran and is located in the Cycloneuralia branch of the Ecdysozoa. It has survived for more than 50 million years, is a real ＂living fossil＂. Priapulid was extremely prosperous...Objective Priapulid belong to scalidophoran and is located in the Cycloneuralia branch of the Ecdysozoa. It has survived for more than 50 million years, is a real ＂living fossil＂. Priapulid was extremely prosperous in the Cambrian period. It is a small phylum in the modern ocean; only 18 current types have been described, In the Cambrian life, priapulid is one of the most important living organisms in the sea of Cambrian. The abundance of priapulid is generally much higher than that of other animals, or only after the arthropod, and its differentiation is only after the arthropod and the porous sponge. The priapulid of the Early Cambrian in Chengjiang fossil Lagerstatte has 16 basic groups of seven genera.展开更多
基金supported by the National Natural Science Foundation of China(grant No.41572009)2016 College Students' innovative training program of Chang'an University(grants No.201610710043,201610710044,201610710047 and 201610710045)
文摘Objective Priapulid belong to scalidophoran and is located in the Cycloneuralia branch of the Ecdysozoa. It has survived for more than 50 million years, is a real ＂living fossil＂. Priapulid was extremely prosperous in the Cambrian period. It is a small phylum in the modern ocean; only 18 current types have been described, In the Cambrian life, priapulid is one of the most important living organisms in the sea of Cambrian. The abundance of priapulid is generally much higher than that of other animals, or only after the arthropod, and its differentiation is only after the arthropod and the porous sponge. The priapulid of the Early Cambrian in Chengjiang fossil Lagerstatte has 16 basic groups of seven genera.
