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Quaternary PeriodIt hasn't, yet.

Geologic time was originally divided into four parts, Primary, Secondary, Tertiary, and Quaternary, with the Quaternary being the current time of life. Eventually it was realized that the Primary and Secondary were much more distinctly different than the Tertiary and Quaternary, so the were re-named the Paleozoic (old life) and Mesozoic (middle life) eras, while the Tertiary and Quaternary were classified periods within the Cenozoic (recent life) era. The Tertiary contains the first five epochs, while the Quaternary contains the last two.

Some consider the division between Tertiary and Quaternary to be obsolete, and prefer to divide the Cenozoic into the Palaeogene (first three epochs) and Neogene (latest four epochs).

AnswerYou are currently living in the Qaternary period. Is has not ended.
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14y ago

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