Barremian
| Barremian | |||||||||
|---|---|---|---|---|---|---|---|---|---|
Barremian sedimentary rock layers, France | |||||||||
| Chronology | |||||||||
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| Etymology | |||||||||
| Name formality | Formal | ||||||||
| Usage information | |||||||||
| Celestial body | Earth | ||||||||
| Regional usage | Global (ICS) | ||||||||
| Time scale(s) used | ICS Time Scale | ||||||||
| Definition | |||||||||
| Chronological unit | Age | ||||||||
| Stratigraphic unit | Stage | ||||||||
| Time span formality | Formal | ||||||||
| Lower boundary definition | Not formally defined | ||||||||
| Lower boundary definition candidates | FAD of the Spitidiscus hugii-Spitidiscus vandeckii Ammonite group | ||||||||
| Lower boundary GSSP candidate section(s) | Río Argos, Caravaca de la Cruz, Murcia Province, Spain | ||||||||
| Upper boundary definition | Not formally defined | ||||||||
| Upper boundary definition candidates |
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| Upper boundary GSSP candidate section(s) | Gorgo a Cerbara, Piobbico, Central Apennines, Italy | ||||||||
The Barremian is an age in the geologic timescale (or a chronostratigraphic stage) between 125.77 Ma (million years ago) and 121.4 ± 1.0 Ma (Historically, this stage was placed at 129.4 million to approximately 125 million years ago) It is a subdivision of the Early Cretaceous Epoch (or Lower Cretaceous Series). It is preceded by the Hauterivian and followed by the Aptian Stage.