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BASIC ONE PAGER

Griffin A

Created on February 19, 2023

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Transcript

Events

Environment

We see the "Cambrian Explosion," the introduction of most of what we consider to be "modern life" from the sea.

The Earth during the Cambrian Period was much less volatile that its earlier stages. The Earth was warming from its previously frozen state and the production of more life-fostering conditions. Though life was still very new, land based life was almost non-existant. Despite the fact that the land was barren, the sea was thriving with early forms of complex life. This was huge as we believe this is the beginning of most modern lineages of life.

Cambrian Period

From 541 to 485 million years ago

A more life-friendly period.

The Cambrian Period, a period of course, was a time of great change. We see the explosion of life and the changine of the environment. According to "Ecology of the Cambrian Radiation"; "here is consensus that the most significant events relating to the Neoproterozoic Cambrian transition were global warming, sea level rise, extensive phosphogenesis, and marine biodiversification at ~570 –540 Ma"

Animal Life

Even as far back as the Cambrian Period, we begin to see early forms of modern life such as cniderians, algaes, mollusks, and even rudimentary sponges. Again, according to Ecology of the Cambrain Radiation "The ancestral sponge was probably an aggregate of choanoflagellates, closely associated with various microbial communities." These rudimentary forms of life would go on to pave the way for life as we know it today.

Plant Life

As pictured above, plant life was almost alien in structure. Before modern plant structures evolved, there were many different types of "experimental" and very bizarre plants. Being so early, almost all of these plants were much more simple in design as compared to what we see today both on land and in the ocean.

Zhuravlev A ëIìU, Riding R. The Ecology of the Cambrian Radiation. Columbia University Press; 2001. Accessed February 20, 2023. https://search.ebscohost.com/login.aspx?direct=true&AuthType=cookie,shib&db=nlebk&AN=79624&authtype=shib&site=ehost-live&scope=site