Cambrian period (21 sept. 545000000 av. J.-C. – 21 sept. 495000000 av. J.-C.)
Description:
Known as the Cambrian Explosion, the Cambrian Period is known for its multitude of diverse life forms. Mostly sponge-like creatures grew in the seas, but now animals started to swim, burrow, defend themselves, and crawl. Some life forms grew hard, sturdy shells which fossilized easily and gave us a clear form. There was very little life on land, and the only vegetation was algae. The weather was generally cold but slowly got warmer through the years.Ajouté au bande de temps:
Date:
21 sept. 545000000 av. J.-C.
21 sept. 495000000 av. J.-C.
~ 5883516 years