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Additional
Callovian
English Wikipedia - The Free Encyclopedia
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Callovian
In the
geologic timescale
, the
Callovian
is an
age
or
stage
in the
Middle Jurassic
, lasting between 166.1 ± 4.0
Ma
(million years ago) and 163.5 ± 4.0 Ma. It is the last stage of the
Middle Jurassic
, following the
Bathonian
and preceding the
Oxfordian
.
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