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In the geologic timescale, the Kimmeridgian is an age in the Late Jurassic Epoch and a stage in the Upper Jurassic Series. It spans the time between 154.8 ±0.8 Ma and 149.2 ±0.7 Ma (million years ago). The Kimmeridgian follows the Oxfordian and precedes the Tithonian.
Stratigraphic definition & Overview
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jurassic upper ics ammonite stage tithonian base stratigraphic boundary years ago name time age ma oxfordian first timescale mw-parser-output scale
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Kimmeridgian | Celestial body | Earth | 1.00 | infobox |
| Kimmeridgian | Chronological unit | Age | 1.00 | infobox |
| Kimmeridgian | Lower boundary definition | FAD of the Ammonite Pictonia baylei | 1.00 | infobox |
| Kimmeridgian | Lower boundary GSSP | Flodigarry, Skye, Scotland, UK .mw-parser-output .geo-default,.mw-parser-output .geo-dms,.mw-parser-output .geo-dec{display:inline}.mw-parser-output .geo-nondefault,.mw-parser-o… | 1.00 | infobox |
| Kimmeridgian | Lower GSSP ratified | 2021 | 1.00 | infobox |
| Kimmeridgian | Name formality | Formal | 1.00 | infobox |
| Kimmeridgian | Regional usage | Global (ICS) | 1.00 | infobox |
| Kimmeridgian | Stratigraphic unit | Stage | 1.00 | infobox |
| Kimmeridgian | Time scale(s) used | ICS Time Scale | 1.00 | infobox |
| Kimmeridgian | Time span formality | Formal | 1.00 | infobox |
| Kimmeridgian | Upper boundary definition | Not formally defined | 1.00 | infobox |
| Kimmeridgian | Upper boundary definition candidates | Base of magnetic polarity chronozone M22An. | 1.00 | infobox |
| Kimmeridgian | Upper boundary definition candidates | FAD of the Ammonite genus Gravesia | 1.00 | infobox |
| Kimmeridgian | Upper boundary GSSP candidate section(s) | Mount Crussol, France | 1.00 | infobox |
| Kimmeridgian | Upper boundary GSSP candidate section(s) | Canjuers, France | 1.00 | infobox |
| Kimmeridgian | Upper boundary GSSP candidate section(s) | Fornazzo, Sicily, Italy | 1.00 | infobox |
| Kimmeridgian | is a | age in the Late Jurassic Epoch and a stage in the Upper Jurassic Series | 0.90 | text |
| Kimmeridgian | is a | Flodigarry section at Staffin Bay on the Isle of Skye | 0.90 | text |
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