Bajocian (170.3 +/-1.4 Ma)

Back to Time Scale

Representation and status

Index
baj
Color CMYK
35 / 0 / 5 / 0
Color RGB
R: 166 G: 221 B: 224
Rank
chronostratigraphic Stage
Validity
Unit is in Use
Status
valid formal name
Status discussion

Nomenclature

Deutsch
Bajocien (CH ; DE/AT: Bajocium)
Français
Bajocien
Italiano
Bajociano
English
Bajocian (170.3 +/-1.4 Ma)
Origin of the Name

Named after the town of Bayeux (Calvados, France) in Normandy.

Historical Variants

Bajocien (d'Orbigny 1852, Dreyfuss et al. 1956), 13e Etage = Bajocien (Greppin 1866)

Nomenclatorial Remarks

Latin: Bajocium

Hierarchy and sequence

Age

Age at top
  • Bajocian
Age at base
  • Bajocian
Dating Method

Sowerbyi, Sauzei, Blagdeni and Garantiana/Parkinsoni zones

Geography

Type area
Paris Basin (France)

References

Definition
d'Orbigny A. (1852) : Paléontologie française - Terrains jurassiques - Céphalopodes.

p.606: Le nom [de cet étage] est dérivé de la ville de Bayeux (Bajoce) Calvados, où se trouve le plus beau type français, le point étalon.

  • Gaetani Oceanic Anoxic Event

    Name Origin

    Named in recognition of Maurizio Gaetani's work on Jurassic sedimentary successions of the Lombardy Basin.

    Rank
    Oceanic Anoxic Event
    Status
    informal term
    In short

    Black shale interval locally developped at the transition betwenn the Rosso Ammonitico Lombardo and the Radiolarite Group.

    Age
    early Bajocian
Back to top