c. 55900000 BCE–c. 55700000 BCE
Paleocene–Eocene Thermal Maximum
Climate & environment · Paleoclima · Calentamiento · Carbono
The Paleocene–Eocene Thermal Maximum (PETM), dated approximately 55.9 to 55.7 million years ago, is identified in multiple paleoenvironmental archives as a geologically rapid warming episode. Temperature and carbon reconstructions retain uncertainties of resolution and mechanism; it is not a direct analogue for a human historical period.
Precision, calendar, and review
- Start
- year · approximate
- End
- year · approximate
- Calendar and convention
- Historical-era years; the source calendar is not identified. No conversion of days is assumed.
- Year zero
- The scale goes from 1 BCE to 1 CE without year zero. Changing era names changes labels only.
- Documentary review
- Date not recorded
Reading the date: duration of a process.
Sources
- www.ipcc.ch (opens in a new tab)
Source provenance and scope
- Publication date
- Pending verification
- Bibliographic date checked
- 2026-09-23
The correspondence between this reference and individual claims has not yet been itemized.
This record is an editorial synthesis. Consult the sources to check claims and their limits. Chronological relationships alone do not establish causation.