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Caradoc
USE
Caradocian
Caradocian
BT
Chronostratigraphic Units
.
Phanerozoic
..
Paleozoic
...
Ordovician
....
Upper Ordovician
.....
Caradocian
UF
Caradoc
RT
Bala
SN
Europe. Above Llandeilian, below Ashgillian.
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