Concept explainers
To write: The volcanic eruptions of the Permian period and Pangaea formation.
Introduction: There are five mass extinctions that are documented so far in the fossil record over a period of 500 million years ago. The fossil record of mass extinction is mainly from the hard-bodied animals in shallow seas. During this event, about 50% of marine species have become extinct.
The Permian and Cretaceous mass extinction received an important attention, since the mass extinction happened between the Palaeozoic and Mesozoic periods. During this event, about 96% of marine animal species drastically altered their life in the ocean.
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Campbell Biology & Alkaline Vents Supplemental Materials for Campbell Biology & Mastering Biology with Pearson eText -- ValuePack Access Card -- for Campbell Biology Package
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