Berriasian

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In the geologic timescale, Berriasian is a stage of the Early Cretaceous epoch. It spanned between 145.5 ± 4.0 Ma and 140.2 ± 3.0 Ma (million years ago). The Berriasian stage succeeds the Tithonian stage of the Late Jurassic epoch and precedes the Valanginian stage of the Early Cretaceous epoch.


[edit] Fauna


Cretaceous period
Lower/Early Cretaceous Upper/Late Cretaceous
Berriasian | Valanginian | Hauterivian
Barremian | Aptian | Albian		 Cenomanian | Turonian | Coniacian
Santonian | Campanian | Maastrichtian
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