Ediacaran

How did the Ediacara fauna differ from later multi-cellular animals?
What is unique about the Ediacaran fauna?What are the major differences between the Ediacaran and Cambrian fauna?What is the significance of the Edia...
Why is it believed that fauna is immobile?
Why is the Ediacaran fauna so special?Why do some scientists think that Ediacaran organisms do not represent present day animal groups?What was the v...