Cambrian explosion

was an event approximately 541 million years ago in the Cambrian period when practically all major animal phyla started appearing in the fossil record. It lasted for about 13 – 25 million years and resulted in the divergence of most modern metazoan phyla. The event was accompanied by major diversification of other organisms. list of Cambrian animals


 * trilobite
 * Anomalocaris
 * Pikaia
 * Opabinia
 * Hallucigenia
 * Cambroraster
 * wiwaxia
 * myllokunmingia