DECOMPOSITION EXPERIMENT ON EMBRYOS OF ARTEMIA SALINA (CRUSTACEA)——AN ENLIGHTENMENT ON THE EARLY PHOSPHATIZED FOSSIL EMBRYOS
Some phosphatized and silicified spherical fossils from the Ediacaran Doushantuo Formation and Early Cambrian Kuanchuanpu Formation have been classified as possible metazoan embryo fossils.With the intact three-dimension structure preservation and perfect sequence of embryonic development,those fossils provide rare empirical evidence for the study of origination,classification,lineage evolutionary and developmental biology of early metazoa.The study of embryonic fossils has become one of the fastest developing discipline in the past 20 years.However,the biological classification of majority Cambrian embryo remain uncertain; whileas,the authenticity and biological attribution of the unusually preserved embryos in the Neoproterozoic Doushantuo Formation are still in heated controversy.The simulation experiments on modern embryo decomposition Artemia salina (brine shrimp) may throw a new light to solve those problems.Through the simulated taphonomic experiment of living embryos,their preservational potentials at every stage of the decomposition,disaggregation,burial and diagenesis can be well explored,and important empirical material can also be provided to study the fossil embryos by the variation of morphologies and structures of modern embryos in each experiment phases.This study mainly focus on the decomposition changes in various developing stages of the brine shrimp embryos to detect similarities and differences in morphology,structure and texture between modern embryos in different experimental phases and those of the Doushantuo stage and the Early Cambrian.
Artemia salina embryosCrustaceaphosphatized fossil embryosdecomposition experimentcomparative study
NETL
NSTL
万方数据
维普
