Ediacaran
geo:time:period:ediacaranEdiacaran Period (635–538.8 Ma): first complex macroscopic multicellular organisms (Ediacara biota); first animals with bilateral symmetry; Cambrian explosion precursor.
Ediacaran Period (635–538.8 Ma): first complex macroscopic multicellular organisms (Ediacara biota); first animals with bilateral symmetry; Cambrian explosion precursor.