Tag: Protostomia
Was Kimberella a Precambrian Mollusk?
If identified as an animal, it would “predate the Cambrian explosion of bilaterian animal phyla as a kind of ‘advance guard.’”
Ancestor of All Animals in 555-Million-Year-Old Ediacaran Sediments?
Ikaria wariootia is just another problematic Ediacaran fossil that could be anything from inorganic artifact to protozoan to cnidarian and yes, maybe a bilaterian worm.