Which are the different eras which should structure of ground-level n fossils?
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Which are the different eras which should structure of ground-level n fossils?
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Answer:
A geologic era is a subdivision of geologic time that divides an eon into smaller units of time. The Phanerozoic Eon is divided into three such time frames: the ,Paleozoic, Mesozoic, and Cenozoic that represent the major stages in the macroscopic fossil record.