Jurassic
The Jurassic ( juurr-ASS-ik) is a geologic period and stratigraphic system that spanned from the end of the Triassic Period 201.4 Ma (million years ago) to the beginning of the Cretaceous Period, 143.1 Ma. The Jurassic constitutes the second and middle period of the Mesozoic Era as well as the eighth period of the Phanerozoic Eon and is named after the Jura Mountains, where limestone strata from the period were first identified. The start of the Jurassic was marked by the major Triassic–Jurassic extinction event, associated with the eruption of the Central Atlantic Magmatic Province (CAMP).
Extends: Jurassic, [Geological periods](https://wikipedia.org.ai/Geological periods)
Properties
| Property | Expected Type | Description |
|---|---|---|
| Name | Text | Jurassic |
| Color | Text | Jurassic |
| [Time Start](https://wikipedia.org.ai/Time Start) | Text | 201.4 |
| [Time Start Uncertainty](https://wikipedia.org.ai/Time Start Uncertainty) | Text | 0.2 |
| [Time End](https://wikipedia.org.ai/Time End) | Text | 143.1 |
| [Time End Uncertainty](https://wikipedia.org.ai/Time End Uncertainty) | Text | 0.6 |
| [Image Map](https://wikipedia.org.ai/Image Map) | Text | Mollweide Paleographic Map of Earth, 170 Ma (Bajocian Age).png |
| [Caption Map](https://wikipedia.org.ai/Caption Map) | Text | A map of Earth as it appeared 170 million years ago during the Middle Jurassic Epoch |
| Timeline | Text | Jurassic |
| [Name Formality](https://wikipedia.org.ai/Name Formality) | Text | Formal |
| Usage | Text | ICS |
| [Timescales Used](https://wikipedia.org.ai/Timescales Used) | Text | ICS Time Scale |
| [Chrono Unit](https://wikipedia.org.ai/Chrono Unit) | Text | Period |
| [Strat Unit](https://wikipedia.org.ai/Strat Unit) | Text | System |
| [Timespan Formality](https://wikipedia.org.ai/Timespan Formality) | Text | Formal |
| [Lower Boundary Def](https://wikipedia.org.ai/Lower Boundary Def) | Text | ammonite, Psiloceras spelae tirolicum |
| [Lower Gssp Location](https://wikipedia.org.ai/Lower Gssp Location) | Text | Karwendel mountains, Northern Calcareous Alps |
| [Lower Gssp Coords](https://wikipedia.org.ai/Lower Gssp Coords) | Text | 47.4839°N, 11.5306°W |
| [Lower Gssp Accept Date](https://wikipedia.org.ai/Lower Gssp Accept Date) | Text | 2010 |
| [Upper Boundary Def](https://wikipedia.org.ai/Upper Boundary Def) | Text | Not formally defined |
| [Upper Def Candidates](https://wikipedia.org.ai/Upper Def Candidates) | Text | Chron, Calpionellid, FAD, ammonite, Berriasella jacobi |
| [Upper Gssp Candidates](https://wikipedia.org.ai/Upper Gssp Candidates) | Text | None |