https://gcmdservices.gsfc.nasa.gov/kms/concept/f270c702-4bc6-45bd-82ee-b8637073c96f
broader |
|
||||||
---|---|---|---|---|---|---|---|
change note |
|
||||||
definition | The Hauterivian is, in the geologic timescale, an age in the Early Cretaceous epoch or a stage in the Lower Cretaceous series. It spans the time between 132.9 ± 2 Ma and 129.4 ± 1.5 Ma (million years ago). The Hauterivian is preceded by the Valanginian and succeeded by the Barremian. | ||||||
type |
|
||||||
in scheme | chronounits original |