Age · Late Cretaceous
Santonian
85.7–83.6 Ma
The Santonian is an age within the Late Cretaceous, spanning roughly 85.7 to 83.6 million years ago.
| Rank | age· Macrostrat |
|---|---|
| Base | 85.7 Ma· Macrostrat |
| Top | 83.6 Ma· Macrostrat |
| Duration | 2.1 Myr· Macrostrat |
| Chart | ICS International Chronostratigraphic Chart v2023/09 (ages from Macrostrat/PBDB interval tables) |
Elsewhere
- Macrostrat: 37
- PBDB: 114
- ICS chart (stratigraphy.org)
- Wikipedia: Santonian
Cite this article
Stratum Study. "Santonian" (Time interval). Stratum Study pack 2026.09, as of 2026-09-19. https://stratum.black/study/time/santonian. Accessed 2026-09-20.
@misc{stratum-santonian,
title = {Santonian},
author = {{Stratum Study}},
howpublished = {\url{https://stratum.black/study/time/santonian}},
year = {2026},
note = {Time interval article, Stratum Study pack 2026.09, as of 2026-09-19; sources: stratum, macrostrat, 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.