What is the time range during which Homo habilis fossils are dated?

The time range during which Homo habilis fossils are dated is indeed between approximately 2.5 million years ago (mya) and 1.4 million years ago. This aligns with the fossil evidence that has been uncovered, indicating that Homo habilis existed during the early Pleistocene epoch, a period characterized by significant climate fluctuations and the emergence of various hominin species.

Homo habilis is considered one of the earliest species in the genus Homo and is often associated with the development of early stone tool technology. The specific timeframe reflects the fossil discoveries in East Africa, most notably in sites such as Olduvai Gorge, which have helped to establish a clear temporal context for this species.

The other options suggest time ranges that do not accurately correspond with the fossil record of Homo habilis. Fossils dated outside of the 2.5 to 1.4 mya range pertain to other hominins or represent incorrect assessments of the archaeological and geological dating within the hominin timeline.