Marnes à Turbo duplicatus et Ammonites Aalensis

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

obsolete term (disused)

Nomenclature

Deutsch

Aalensis-Schicht

Français

Marnes à Turbo duplicatus et Ammonites Aalensis

Origin of the Name

Namengebende Fossilien (Gastropod- und Ammonitenart): Turbo duplicatus, Pleydellia aalensis.

Historical Variants

Marnes à Turbo duplicatus et Ammonites Aalensis (Rollier 1882)

Description

Thickness

15-20 m (Rollier 1882)

Components

• ammonites
• gastropods
• belemnites
• bivalves

Hierarchy and sequence

Superordinate unit

• Staffelegg-Formation

Age

Age at top

• late Toarcian

Note about top

Levesquei-Z., Aalensis-Sz.

Age at base

• late Toarcian

Note about base

thouarsense-Z., thouarsense-Sz.

Palaenography and tectonic

Tectonic unit (resp. main category)

• Jura :
  Juragebirge

Kind of protolith

• sedimentary

Metamorphism

non metamorphic