Cambrian Mollusk: Does It Help Animal Evolution Story?
July 13, 2006
A soft-bodied mollusk named Odontogriphus known from the Burgess Shale, placed in the Middle Cambrian, has been described in more detail in Nature.1 If the Middle Cambrian is well after the Cambrian explosion, how can the authors claim this pushes the story of animal evolution far back into the Precambrian, before the explosion? A reporter […]
