1 . what is Paleoproterozoic? I need help understanding it and its important to todays earth. How did the certain event effect todays landscape, ecosystems, life. 2. What is acitarchs? what is the nature of acritarch? What is its geological range? How are they fossilized and in what kind of rock? Why are there no more acritarchs? 3. What is trichophycus? What is its global significance of this trace fossil both as a basal marker for the Cambrian and also as a fossil of evolutionary significance. What type of organism could have made this type of trace? What is the significance of Fortune Head, Newfoundland? Why are such places so important in paleontology and stratigraphy? please reference websites used.
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