Cambrian Explosion, Chinese style (Introduction)
It turns out the Cambrian shales in China are revealing better preserved fossils, and some new species when compared to the Burgess shales in Canada. this is an interview with Paul Chien, a major researcher. Note specifically the Yunnanzoon, first vertebrate ever to appear, de novo!-http://www.leaderu.com/real/ri9701/chien.html