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Do we need to know the different ERas (Percambrian, paleozoic, Mesozoic and Cenozoic), the Periods and the species that evolved in each?
For example, will we have to know that gymnosperms evolved during the Triassic period of the Mesozoic era?
Thanks
For example, will we have to know that gymnosperms evolved during the Triassic period of the Mesozoic era?
Thanks