201 – 200 MA

Age · Early Jurassic

Hettangian

201–200 Ma

The Hettangian is an age within the Early Jurassic, spanning roughly 201 to 200 million years ago.

Rankage· Macrostrat
Base201 Ma· Macrostrat
Top200 Ma· Macrostrat
Duration1.9 Myr· Macrostrat
ChartICS International Chronostratigraphic Chart v2023/09 (ages from Macrostrat/PBDB interval tables)

Elsewhere

Cite this article

Stratum Strata. "Hettangian" (Time interval). Stratum Strata pack 2026.09, as of 2026-09-21. https://stratum.black/strata/time/hettangian. Accessed 2026-09-21.

@misc{stratum-hettangian,
  title        = {Hettangian},
  author       = {{Stratum Strata}},
  howpublished = {\url{https://stratum.black/strata/time/hettangian}},
  year         = {2026},
  note         = {Time interval article, Stratum Strata pack 2026.09, as of 2026-09-21; sources: stratum, macrostrat, pbdb. Accessed 2026-09-21.}
}

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Sources for this article: Stratum editorial (Stratum editorial);Macrostrat (CC-BY-4.0);Paleobiology Database (CC-BY-4.0). As of 2026-09-21; Strata 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:hettangian.

Stratum is the inventory, provenance and certificate system for fossil, mineral and shell collections. Strata is its open reference: every fact cites its source, and the credits page lists each one with its licence.