Fossilized sea creature shows bony armor and complex facial structure

The fossilized remains of a 419-million-year-old fish that could be the most primitive known creature with "what we would recognize as a face" has been discovered in China, scientists reported in an article in Nature on Thursday.

The fish, Entelognathus primordialis, literally "the primordial complete jaw", was a heavily armored creature about 20 centimeters in length with small eyes and toothless jaws.