Subdivision of the Cretaceous according to the ICS, as of 2022.[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
Undefined
Lower boundary definition candidates
Magnetic—base of Chron M18r
Base of Calpionellid zone B
FAD of Ammonite Berriasella jacobi
Lower boundary GSSP candidate section(s)
None
Upper boundary definition
Undefined
Upper boundary definition candidates
FAD of the Calpionellid Calpionellites darderi
Upper boundary GSSP candidate section(s)
Montbrun-les-Bains, Drôme, France
Cañada Luenga, Betic Cordillera, Spain
In the geological timescale, the Berriasian is an age/stage of the Early/Lower Cretaceous. It is the oldest subdivision in the entire Cretaceous. It has been taken to span the time between 145.0 ± 4.0 Ma and 139.8 ± 3.0 Ma (million years ago). The Berriasian succeeds the Tithonian (part of the Jurassic) and precedes the Valanginian.
^International Commission on Stratigraphy. "ICS - Chart/Time Scale". www.stratigraphy.org.
In the geological timescale, the Berriasian is an age/stage of the Early/Lower Cretaceous. It is the oldest subdivision in the entire Cretaceous. It has...
Palynological evidence indicates the Cretaceous climate had three broad phases: a Berriasian–Barremian warm-dry phase, an Aptian–Santonian warm-wet phase, and a...
Archiaustroconops besti from the Purbeck Group of Dorset, England, dating to the Berriasian, around 142 million years ago. Basal lineages †Lebanoculicoides Szadziewski...
The Berriasella jacobi zone defines the substage of the Lower Berriasian, the Berriasian being the lowest stage of the Cretaceous. However, due to the...
7 million years ago, or, Berriasian to Late Valanginian stages. Based on the presence of new palynoflora, Middle Berriasian–Early Hauterivian ages were...
around 100 metres, before rebounding to around 110 metres at the Tithonian–Berriasian boundary. The sea level within the long-term trends across the Jurassic...
China from the Middle Jurassic to Early Cretaceous periods (Bathonian to Berriasian stages), and was similar in size and appearance to its North American...
family of ferns or fern-like plants which lived from the Frasnian to the Berriasian (possibly as far as Cenomanian). It was first thought to have gone extinct...
with the oldest record being Eotabanoid, known from wings found in the Berriasian (145–140 million years ago) Purbeck Group of England. Although the bloodsucking...
forefeet. Sauropod tracks from the Villar del Arzobispo Formation of early Berriasian age in Spain support the gregarious behaviour of the group. The tracks...
Calpionellites darderi marks the beginning of the Valanginian and thus end of the Berriasian. Fossils of the genus have been found in: Puke, Albania Steinmühl Formation...
is generally considered to encompass the interval now covered by the Berriasian, Valanginian and Hauterivian, from approximately 145 to 130 Ma. It was...
apparently from an azhdarchid is known from the Early Cretaceous as well (late Berriasian age, about 140 million years ago). Azhdarchids are mainly known for including...
(million years ago). It is preceded by the Kimmeridgian and followed by the Berriasian (part of the Cretaceous). The Tithonian was introduced in scientific literature...
– −70 — – Mesozoic C Z J Cretaceous P g L J Early Late P C Tithonian Berriasian Valanginian Hauterivian Barremian Aptian Albian Cenomanian Turonian Coniacian...
and the still richer late Jurassic (Tithonian) and early Cretaceous (Berriasian) Vaca Muerta formation above it in the Neuquén basin are reported to contain...
from the late Upper Jurassic, Tithonian, to the early Lower Cretaceous, Berriasian and has a fairly worldwide distribution. Fossils of Berriasella have been...
crassidens which is known from the Berriasian of England, and the referable species G. simus from the Berriasian of NW Germany, might be conspecific...
copia. Octahedronoides Gen. et sp. nov Valid Granier Early Cretaceous (Berriasian to Valanginian) Spain An acritarch. The type species is O. tethysianus...
Farlowichnus was found in layers of the Botucatu Formation, which dates to the Berriasian–Hauterivian ages of the Early Cretaceous. Fossil remains of several indeterminate...
and traces from coprophagous organisms from the Lower Cretaceous (Late Berriasian) Jydegaard Formation of Bornholm, Denmark" (PDF). New Mexico Museum of...
deltatheroidans is questionable. Ichthyoconodon, a eutriconodont from the Berriasian of Morocco, is currently known from molariforms found in marine deposits...
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