Haikouichthys

== Haikouichthys ercaicunensis==

====Haikouichthys is a fish the size of a nail. He lived in the late Cambrian. It is the ancestor of all the vertebrates, like her ancestor Pikaia. One of his greatest predator is was the Anomalocaris. His descendants will soon develop fins and jaws. For now, Haikouichthys don't have. It was discovered in China.====