444 – 419 MA

Period · Paleozoic

Silurian

444–419 Ma

The Silurian is a period within the Paleozoic, spanning roughly 444 to 419 million years ago. Reef builders (tabulate and rugose corals), eurypterids and crinoids are its collector staples.

Rankperiod· Paleobiology Database
Base444 Ma· Paleobiology Database
Top419 Ma· Paleobiology Database
Duration24.6 Myr· Paleobiology Database
ChartICS International Chronostratigraphic Chart v2023/09 (ages from Macrostrat/PBDB interval tables)

Elsewhere

Cite this article

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

@misc{stratum-silurian,
  title        = {Silurian},
  author       = {{Stratum Study}},
  howpublished = {\url{https://stratum.black/study/time/silurian}},
  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:silurian.