Couches supérieures à Crenularis

Representation and status

Color CMYK
N/A
Color RGB
R: 125 G: 125 B: 125
Rank
lithostratigraphic unit
Validity
Unit is not in Use
Status
incorrect term (disused)

Nomenclature

Deutsch
Obere Crenularis-Schichten
Français
Couches supérieures à Crenularis
English
Upper Crenularis Beds
Origin of the Name
Hemicidaris crenularis Agassiz
Historical Variants
Séquanien inférieur = Crenularis-Schichten d'Argovie (Rollier 1910), Séquanien inférieur = couches du Châtelu = Couches à Hemicidaris crenularis (Muhlethaler 1932), couches supérieures à Hemicidaris crenularis = Glypticien supérieur (Caire 1970)

Components

Fossil Content
  • echinoids

Age

Age at top
  • Oxfordian
Age at base
  • Oxfordian

Geography

Geographical extent
Aargauer Jura

Palaenography and tectonic

Tectonic unit (resp. main category)
Kind of protolith
  • sedimentary
Conditions of formation
"argovien" / "séquanien"
Metamorphism
non metamorphic
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