Aalenian
Sign in to saveAlso known as Aalenian Age, Aalenian Stage
The Aalenian () is a subdivision of the Middle Jurassic Epoch/Series of the geologic timescale that extends from about 174.7 ±0.8 Ma to about 170.9 ±0.8 Ma (million years ago). It was preceded by the Toarcian and succeeded by the Bajocian.
Key facts
- Geologic timespan.name
- Aalenian
- Geologic timespan.color
- Aalenian
- Geologic timespan.time_start
- 174.7
- Geologic timespan.time_start_uncertainty
- 0.8
- Geologic timespan.time_end
- 170.9
- Geologic timespan.time_end_uncertainty
- 0.8
- Geologic timespan.image_outcrop
- Aalenian GSSP - Golden spike ceremony - Fuentelsaz, Guadalajara, Spain 08.jpg
- Geologic timespan.caption_outcrop
- The Aalenian GSSP in Spain
- Geologic timespan.timeline
- Jurassic
- Geologic timespan.name_formality
- Formal
- Geologic timespan.celestial_body
- earth
- Geologic timespan.usage
- Global (ICS)
- Geologic timespan.timescales_used
- ICS Time Scale
- Geologic timespan.chrono_unit
- Age
- Geologic timespan.strat_unit
- Stage
- Geologic timespan.timespan_formality
- Formal
- Geologic timespan.lower_boundary_def
- FAD of Ammonites Leioceras opalinum and Leioceras lineatum
- Geologic timespan.lower_gssp_location
- Fuentelsaz, Spain
via Wikipedia infobox
Wikidata facts
- Instance of
- age
- Named after
- Aalen
- Country
- Spain
- Followed by
- Bajocian
- Follows
- Toarcian
- Image
- Aalenian GSSP - Golden spike ceremony - Fuentelsaz, Guadalajara, Spain 14.jpg
Show 6 more facts
- topic's main category
- Category:Aalenian
- sRGB color hex triplet
- 6FDAED
- start time
- 174100000-
- end time
- 170300000-
- significant place
- Fuentelsaz
- named by
- Karl Mayer-Eymar
via Wikidata · CC0
~2 min read
Encyclopedic overview
5 sectionsContents
- Stratigraphic definitions
- References
- Notes
- Literature
- External links
The Aalenian () is a subdivision of the Middle Jurassic Epoch/Series of the geologic timescale that extends from about 174.7 ±0.8 Ma to about 170.9 ±0.8 Ma (million years ago). It was preceded by the Toarcian and succeeded by the Bajocian.
==Stratigraphic definitions== The Aalenian takes its name from the town of Aalen, some 70 km east of Stuttgart in Germany. The town lies at the northeastern end of the Swabian Jura. The name Aalenian was introduced in scientific literature by Swiss geologist Karl Mayer-Eymar in 1864.
Excerpted from Wikipedia’s “Aalenian” article, available under the CC BY-SA 4.0 licence.
On the map
6 mapped locations