Cambrian

= Cambrian Time Period = = The Cambrian time period began 570 million years ago. This time period was apart of the Paleozoic Era. In this Era, there were animals like, microscopic organisms, sponges, starfish, sea urchins, sea lillies and velvet worms. Then, there were plants like, algae and seaweeds. After some time some animals went extinct. Two examples would be, trilobites (picture to the left.) and brachiopods. (picture bottom right.) One of the most important events that happened was the Cambrian Explosion. The Cambrian Explosion has many beliefs of what may have happened at that time. Scientists have concluded that the Cambrian Explosion was actually just a mass extinction of many organisms, not an actual explosion. = = By: Rhiannon Ankeny, Jamie Gibson and Tyler Gray =