The Early Cretaceous (timestratigraphic name) or the Lower Cretaceous (logstratigraphic name), is the earlier of the two major divisions of the Cretaceous Period. It began about 146 million years ago.
|Lower/Early Cretaceous||Upper/Late Cretaceous|
|Berriasian | Valanginian | Hauterivian
Barremian | Aptian | Albian
|Cenomanian | Turonian | Coniacian|
Santonian | Campanian | Maastrichtian
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