Tag: Deuterostomia
A Remarkably Candid Statement About an Unsolved Evolutionary Puzzle
According to current systematic theory, everyone reading this right now belongs to the taxonomic category Deuterostomia.
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.