Tag: microbial mats
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.
Cambrian Explosion Blues
Here’s a sampling of the latest speculations about the Cambrian explosion.
Biologist Scott Turner’s Purpose and Desire, In His Own Words
If Turner is right, the clockwork, mechanistic, DNA-centric model may have met its match.