Age · Late Cretaceous
Maastrichtian
72.2–66 Ma
The Maastrichtian is an age within the Late Cretaceous, spanning roughly 72.2 to 66 million years ago.
| Rank | age· Macrostrat |
|---|---|
| Base | 72.2 Ma· Macrostrat |
| Top | 66 Ma· Macrostrat |
| Duration | 6.2 Myr· Macrostrat |
| Chart | ICS International Chronostratigraphic Chart v2023/09 (ages from Macrostrat/PBDB interval tables) |
Elsewhere
- Macrostrat: 35
- PBDB: 112
- ICS chart (stratigraphy.org)
- Wikipedia: Maastrichtian
Cite this article
Stratum Study. "Maastrichtian" (Time interval). Stratum Study pack 2026.09, as of 2026-09-19. https://stratum.black/study/time/maastrichtian. Accessed 2026-09-20.
@misc{stratum-maastrichtian,
title = {Maastrichtian},
author = {{Stratum Study}},
howpublished = {\url{https://stratum.black/study/time/maastrichtian}},
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.