Barremian

Barremian
~125.77 – ~121.4 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Barremian sedimentary rock layers, France
Chronology
−140 — – −130 — – −120 — – −110 — – −100 — – −90 — – −80 — – −70 — – Mesozoic C Z J Cretaceous P g L J Early Late P C Tithonian Berriasian Valanginian Hauterivian Barremian Aptian Albian Cenomanian Turonian Coniacian Santonian Campanian Maastrichtian Danian         ← K-Pg mass extinction Subdivision of the Cretaceous according to the ICS, as of 2023.[1] Vertical axis scale: millions of years ago.
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	Base of magnetic polarity chronozone M0r. Near FAD of the Ammonite Paradeshayesites oglanlensis
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^[2] (Historically, this stage was placed at 129.4 million to approximately 125 million years ago^[3]) 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.^[4]