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incredible burst of evolution and complex life forms emerge. large hard body creatures emerge. trilobites dominated. supercontinent rodinia broke apart.
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A variety of sea life flourished. first plants arrived on land. and second largest mass extinction. nautiloids dominated.
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sea levels rise, and first animals walk on land. Huge reef systems formed followed by sponges and coral. diverse fish also arrived along with planktonic creatures. Sea scorpions and eurypterids dominated. first sharks arrive.
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Age of armored fish. supercontinent Euramerica formed. shark ancestors. first amphibians walk on land and plant life begins to spread more on to land. Mass extinction killed 70% of life.
