New Precambrian Fossils Are Not Cambrian Ancestors

From the headlines you might think that with the discovery of some new Chinese embryo fossils, the enigma of the Cambrian explosion has been solved. The announcement from Virginia Tech trumpets, "New evidence of ancient multicellular life sets evolutionary timeline back 60 million years."

A Virginia Tech geobiologist with collaborators from the Chinese Academy of Sciences have found evidence in the fossil record that complex multicellularity appeared in living things about 600 million years...