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Cenomanian
The
Cenomanian
is, in the
ICS
'
geological timescale
the oldest or earliest
age
of the
Late Cretaceous
epoch
or the lowest
stage
of the
Upper Cretaceous
series
. An age is a unit of
geochronology
: it is a unit of time; the stage is a unit in the
stratigraphic column
deposited during the corresponding age. Both age and stage bear the same name.
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