Period · Cenozoic
Quaternary
2.58–0 Ma
The Quaternary is a period within the Cenozoic, spanning roughly 2.58 to 0 million years ago. Ice ages and megafauna; mammoth, mastodon, sabre-tooth and Florida's Pleistocene river finds.
| Rank | period· Paleobiology Database |
|---|---|
| Base | 2.58 Ma· Paleobiology Database |
| Top | 0 Ma· Paleobiology Database |
| Duration | 2.58 Myr· Paleobiology Database |
| Chart | ICS International Chronostratigraphic Chart v2023/09 (ages from Macrostrat/PBDB interval tables) |
Elsewhere
Cite this article
Stratum Study. "Quaternary" (Time interval). Stratum Study pack 2026.09, as of 2026-09-19. https://stratum.black/study/time/quaternary. Accessed 2026-09-20.
@misc{stratum-quaternary,
title = {Quaternary},
author = {{Stratum Study}},
howpublished = {\url{https://stratum.black/study/time/quaternary}},
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.