The Cambrian is divides into epochs, the earliest to latest is a,b,c,d
Very early in the Cambrian the sea floor was covered by a “mat” of microbial life above a thick layer of oxygen-free mud.
The continents were shifting apart after the super continent of Rodinia that started to drift apart 700-650 Mya
The Cambrian's Continents were arranged into two large Continents, Gondwana and laurentia
This period was part of the age of invertebrates
Life diversified in the Cambrian. Alge turned into red and green alge
The Cambrian period started with a mass extiction
The extinction was caused by a lack of oxygen in the ocean
In the early Cambrian, Earth was generally cold but was gradually warming as the glaciers of the late Proterozoic Eon receded.
the middle Cambrian was started by a extinction
hard-bodied brachiopods, which resembled clams; and arthropods — ancestors of spiders, insects and crustaceans evolved during this time
The end of the period was marked with a mass extinction
Works Cited
Bagley, Mary. "Cambrian Period: Facts & Information." LiveScience. Purch, 27 May 2016. Web. 20 Mar. 2017.
"The Cambrian Period." The Cambrian Period. Web. 20 Mar. 2017.
"Cambrian: Life." Life During the Cambrian Period. Web. 20 Mar. 2017.
Bagley, Mary. "Cambrian Period: Facts & Information." LiveScience. Purch, 27 May 2016. Web. 20 Mar. 2017.
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