c. 2300000 BC–c. 1200000 BC
Range of *Paranthropus boisei* in eastern Africa
Human evolution & hominins · Parántropos · Diversidad de homininos · Dieta inferida
*Paranthropus boisei* lived in eastern Africa roughly 2.3 to 1.2 million years ago, alongside several species of *Homo*. Its large teeth and jaw indicate a capacity to process hard or tough foods, but dental microwear also points to a more varied diet than the “nutcracker” caricature. It is recorded as a coexisting branch, not as a failed stage on the way to *Homo sapiens*.
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
- humanorigins.si.edu (opens in a new tab)
Source provenance and scope
- Publication date
- Not identified in metadata; document review pending
- Source updated
- 2024-01-03
- 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.