Aeronian

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Representation and status

Color CMYK
30 / 0 / 20 / 0
Color RGB
R: 179 G: 225 B: 194
Rank
chronostratigraphic Stage
Validity
Unit is in Use
Status
valid formal name

Nomenclature

Deutsch
Aeronium (CH: Aéronien)
Français
Aéronien
Italiano
Aeroniano
English
Aeronian
Origin of the Name

Cemcoed-Aeron Farm near Llandovery, Powys (Wales, UK)

Hierarchy and sequence

Units at roof
Lower boundary

The Global Stratotype Section and Point (GSSP) defining the base of the Aeronian Stage is set within the block-shaped mudstones of the Trefawr Formation near Llandovery. It is defined by the first appearance of the graptolite Monograptus triangulatus.

Age

Age at top
  • Silurian
Age at base
  • Silurian

Geography

Type area
Wales, UK
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