| Tithonian | 
|---|
|
|
−205 — – −200 — – −195 — – −190 — – −185 — – −180 — – −175 — – −170 — – −165 — – −160 — – −155 — – −150 — – −145 — – −140 —  |  |  |   |  
  | 
|
| Name formality | Formal | 
|---|
|
| Celestial body | Earth | 
|---|
| Regional usage | Global (ICS) | 
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| Time scale(s) used | ICS Time Scale | 
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|
| Chronological unit | Age | 
|---|
| Stratigraphic unit | Stage | 
|---|
| Time span formality | Formal | 
|---|
| Lower boundary definition | Not formally defined | 
|---|
| Lower boundary definition candidates | 
 | 
|---|
| Lower boundary GSSP candidate section(s) | 
 | 
|---|
| Upper boundary definition | Not formally defined | 
|---|
| Upper boundary definition candidates | 
 | 
|---|
| Upper boundary GSSP candidate section(s) | None | 
|---|
In the geological timescale, the Tithonian is the latest age of the Late Jurassic Epoch and the uppermost stage of the Upper Jurassic Series. It spans the time between 149.2 ±0.7 Ma and 143.1 ±0.6 (million years ago). It is preceded by the Kimmeridgian and followed by the Berriasian (part of the Cretaceous).