201 – 175 MA

Epoch · Jurassic

Early Jurassic

201–175 Ma

The Early Jurassic is an epoch within the Jurassic, spanning roughly 201 to 175 million years ago.

Rankepoch· Paleobiology Database
Base201 Ma· Paleobiology Database
Top175 Ma· Paleobiology Database
Duration26.7 Myr· Paleobiology Database
ChartICS International Chronostratigraphic Chart v2023/09 (ages from Macrostrat/PBDB interval tables)

Elsewhere

Cite this article

Stratum Study. "Early Jurassic" (Time interval). Stratum Study pack 2026.09, as of 2026-09-19. https://stratum.black/study/time/early-jurassic. Accessed 2026-09-20.

@misc{stratum-early-jurassic,
  title        = {Early Jurassic},
  author       = {{Stratum Study}},
  howpublished = {\url{https://stratum.black/study/time/early-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.

Sources for this article: Stratum editorial (Stratum editorial);Paleobiology Database (CC-BY-4.0). As of 2026-09-19; Study pack 2026.09. Data reproduced under the licences shown; text in Stratum's own words unless a section names its source.

Found an error? Write to drew@tyr.ac with the article id interval:early-jurassic.