Cambrian Explosion

Below is the details of 'Cambrian Explosion'.

 

Cambrian Explosion 535 mya

The appearance during the Cambrian of fossils for most major animal phyla body forms over a few million years.
Source: http://www.newscientist.com/article/dn17453-timeline-the-evolution-of-life.html (New Scientist)

Keywords: animal, evolution, fossils, geology