Berriasian (~ 145 Ma)

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Representation and status

Index
ber
CMYK Color
45 / 0 / 65 / 0
RGB color
R: 140 G: 205 B: 96
Rank
chronostratigraphic Stage
Validity
Unit is in Use
Status
valid formal name
SCS note
-
SCS date
-
Comment
Initially incorporated as a substage in the Valanginian (= «Infravalangien» auct.), until Lory (1898) and Paquier (1900) restricted the Valanginian to exclude the Berriasian (further used by Mazenot 1939 and ratified in 1963).

Nomenclature

German
Berriasien
French
Berriasien
Italian
Berriasiano
English
Berriasian (~ 145 Ma)
Origin of the Name

Named after the village of Berrias (Ardèche, France).

Historical Variants
Berriasien (Coquand 1871, Sornay et al. 1957), Berrias, Berriasium (DE/AT)
Nomenclatorial Remarks
-

Synonyms

Synonyms
Non-synonyms
Possible confusion

Description

Description
-
Geomorphology
-
Thickness
-

Components

Lithological content
-
Mineral content
-
Fossil content
-

Hierarchy and succession

Superordinate unit
Subordinate units
Units at roof
    -
Units at floor
Lateral equivalents
Upper boundary
-
Lower boundary
-
Stratigraphic discussion
-

Age

Age at top
Berriasian
Note about top
-
Age at base
Berriasian
Note about base
-
Dating method
ca. 145 Ma

Geography

Geographical extent
-
Type area
Type locality
-
Type profile
-
Reference profiles
-
Point of interest
-

Paleogeography and tectonic

Paleogeography
-
Kind of protolith
-
Conditions of formation
-
Sequence
-
Tectonic Unit (resp. main category)
Time Scale
  • Paratethys
  • Mammal stages
Metamorphism
-
Metamorphic facies
-
Note on metamorphism
-

References

Definition
Coquand H. (1871): Sur le Klippenkalk du Var et des Alpes-Maritimes. , Bull. Soc. géol. Fr. (2éme sér). 28, 208-
Revision
-
Important publications
-

Material and varia

Applications
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