Stratigraphy
Cretaceous
25
Stratigraphy
Index
Index add'l
Type
Rank
Scope
Belongs to
Age (Ma)
Age
Base
Top
Lower Cretaceous
K1
chronostratigraphy
Series
global
Cretaceous145.0100.5
Upper Cretaceous
K2
chronostratigraphy
Series
global
Cretaceous100.566.0
25
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