supported by the National Natural Science Foundation of China(Grant No.40372009);Chinese Academy of Sciences(Grant Nos.KZCX2-SW-130,KZCX3-SW-149);the Ministry of Science and Technology of China(Grant Nos.G200077700,2003CB7 16805).
As the primary producers, acritarchs represent the base of the food chain in the Paleozoic marine ecosystem which links with the evolution of acritarchs. Based on high precision quantitative research, much information...