Precambrian Era
By: Michael Erickson
What is it named after
The prefix pre- means before so the Precambrian era came before the Cambrian era
First living organism
Image of what it was like during the Precambrian Era
Image of what the earth looked like at the time
Condition
4 BYA was the most dangerous time period on Earth.
- Meteors would hit the surface, volcanoes would erupt spewing lava rock all over the land.
- Fierce heat waves would hit the earths surface.
- Hydrogen, methane, ammonia was in the atmosphere and no oxygen
Living Organisms?
- They were one celled organisms like bacteria
- Later in the Precambrian Era multicellular animals started to form
- Like the creature below it is one of the first multicellular animal
Sources
"Precambrian Era." Precambrian Era. N.p., n.d. Web. 06 May 2015
"Precambrian Era Map." N.p., n.d. Web.
"First Ever Computer Model of a Living Organism Performed." ZME Science. N.p., 23 July 2012. Web. 06 May 2015.
Karpelenia, Jenny. Geologic Time. Logan, IA: Perfection Learning, 2005. Print.
"Precambrian Time, Earth History Information, Prehistoric Facts -- National Geographic." National Geographic. N.p., n.d. Web. 06 May 2015