Until the 1980s, scientists assumed that hominins had been restricted to the African continent for the whole of the Early Pleistocene (until about 0.8 Ma), only migrating out during a phase named Out of Africa I. Thus, the vast majority of archaeological effort was disproportionately focused on Africa.
The  Dmanisi archeological site is the earliest hominin site out of Africa and the analysis of its artifacts showed that some hominins, chiefly the Homo erectus georgicus had left Africa as far back as 1.85 million years ago.
All of the 5 skulls are roughly the same age.

Consequently, the paleontological significance of the dating of the Dmanisi skulls is major.
It is worth noting that it was not associated with the discovery of skull 5, but with another specimen found at the same site, the Dmanisi Skull 3, also known as D2700.
Until the 1980s, scientists assumed that hominins had been restricted to the African continent for the whole of the Early Pleistocene (until about 0.8 Ma), only migrating out during a phase named Out of Africa I. Thus, the vast majority of archaeological effort was disproportionately focused on Africa. The  Dmanisi archeological site is the earliest hominin site out of Africa and the analysis of its artifacts showed that some hominins, chiefly the Homo erectus georgicus had left Africa as far back as 1.85 million years ago. All of the 5 skulls are roughly the same age.
Consequently, the paleontological significance of the dating of the Dmanisi skulls is major. It is worth noting that it was not associated with the discovery of skull 5, but with another specimen found at the same site, the Dmanisi Skull 3, also known as D2700.
Dmanisi skull 5