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307 – 304 MA

Age · Late Pennsylvanian

Kasimovian

307–304 Ma

The Kasimovian is an age within the Late Pennsylvanian, spanning roughly 307 to 304 million years ago.

Rankage· Macrostrat
Base307 Ma· Macrostrat
Top304 Ma· Macrostrat
Duration3.3 Myr· Macrostrat
ChartICS International Chronostratigraphic Chart v2023/09 (ages from Macrostrat/PBDB interval tables)

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Elsewhere

Cite this article

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

BibTeX · CSL-JSON

@misc{stratum-kasimovian,
  title        = {Kasimovian},
  author       = {{Stratum Strata}},
  howpublished = {\url{https://stratum.black/strata/time/kasimovian}},
  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:kasimovian.

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