A book is being publicized that purports to provide proof that aliens from another planet brought life to Earth. The proof they show are strange fossils of multicellular organisms that look like no animal you have ever seen. What group actually includes these "aliens"?

Question

Quizplus · Accepted Answer

The Ediacaran fauna refers to a group of strange, soft-bodied multicellular organisms that lived between 635 and 541 million years ago during the Ediacaran Period. Some scientists have hypothesized that these organisms represent an early experiment in multicellularity that did not give rise to any modern animal groups, and may even be extraterrestrial in origin. However, there is much debate about the true nature and evolutionary relationships of these organisms.

A Book Is Being Publicized That Purports to Provide Proof