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Bajocian

Hierarchy:Phanerozoic Mesozoic  Jurassic   Middle Jurassic
    Bajocian
Classification:Age (as per International Commission on Stratigraphy)
Top:168.3 ± 1.3 Ma
Base:170.3 ± 1.4 Ma
Preceeds:Bathonian
Follows:Aalenian
Name origin:Named is from the Latin name (Bajocae) of the town of Bayeux, in the region of Normandy in France, introduced by French palaeontologist Alcide d'Orbigny in 1842.
GSSP:Murtinheira Section, Cabo Mondego, Portugal
GSSP location:40.1992°N, 8.9042°W
GSSP link:View Global Boundary Stratotype Section and Point of the International Commission on Stratigraphy
The base of the Bajocian stage is defined as the place in the stratigraphic column where fossils of the ammonite genus Hyperlioceras first appear.

The top of the Bajocian (the base of the Bathonian) is at the first appearance of ammonite species Parkinsonia convergens.
 

Geologic Events

Event NameTypeAgeArea
Pangaea breakup (ongoing)Continental Breakup175 - 55 MaGlobal
Andean orogeny (ongoing)OrogenyMaximum Age: 200 MaSouth America
Laurasia supercontinent (ongoing)Supercontinent215 - 55 MaNorthern Hemisphere


Overview of geological time

List all geological events
Mineral and/or Locality  
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