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Mya (unit)

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The correct title of this } is }}}. The initial letter is capitalized due to [Naming conventions #Lower case first lettertechnical restrictions].
For other uses of mya, see mya (disambiguation).
In astronomy, geology, and paleontology, mya or "m.y.a." is an acronym for million years ago and is commonly used as a unit of time to denote length of time before the present or "B.P." Specifically, one mya is equal to 106 years ago. The popular term 'mya' is replaced in scientific literature with Ma (mega annum).

Like the related unit bya or "b.y.a.," ("billion years ago"), mya is traditionally written in lowercase. This is different from the related unit Ga, which capitalizes the first letter. The common term bya is replaced in scientific literature with Ga (giga annum).

Events around 1 mya:

See also

 


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