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Re: Public Database of Geologic Formation Ages?
But I admit that is somewhat arbitrary.
On 23 August 2011 23:21, Vivian Allen <firstname.lastname@example.org> wrote:
> I would just put 66.
> On 23 August 2011 23:04, David Marjanovic <email@example.com> wrote:
>>> To the OP - just round to the nearest Ma?
>> Even this is usually not possible.
>> The Maastrichtian lasted from 70.5 to 66.5 Ma ago. So what is "late
>> Maastrichtian"? 66 Ma ago? 67? 68?