Aeronian
Back to RhuddanianRepresentation 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