Period · Mesozoic
Jurassic
201–143 Ma
The Jurassic is a period within the Mesozoic, spanning roughly 201 to 143 million years ago. Ammonites, marine reptiles and the Morrison, Solnhofen and Holzmaden faunas; the Lias of Lyme Regis is Early Jurassic.
| Rank | period· Paleobiology Database |
|---|---|
| Base | 201 Ma· Paleobiology Database |
| Top | 143 Ma· Paleobiology Database |
| Duration | 58.3 Myr· Paleobiology Database |
| Chart | ICS International Chronostratigraphic Chart v2023/09 (ages from Macrostrat/PBDB interval tables) |
Elsewhere
Cite this article
Stratum Study. "Jurassic" (Time interval). Stratum Study pack 2026.09, as of 2026-09-19. https://stratum.black/study/time/jurassic. Accessed 2026-09-20.
@misc{stratum-jurassic,
title = {Jurassic},
author = {{Stratum Study}},
howpublished = {\url{https://stratum.black/study/time/jurassic}},
year = {2026},
note = {Time interval article, Stratum Study pack 2026.09, as of 2026-09-19; sources: stratum, pbdb. Accessed 2026-09-20.}
} Citations carry the pack version and the article's as-of date so they resolve to the same text later. The facts themselves belong to the sources listed below; cite those for the science.