Vertebra discovered in the Jordan Valley tells the story of prehistoric migration from Africa
A new study published in the journal Scientific Reports, suggests that ancient human migration from Africa to Eurasia was not a one-time event but occurred in waves.
The first wave reached the Republic of Georgia in the Caucasus approximately 1.8 million years ago. The second is documented in ‘Ubeidiya in the Jordan Valley about 1.5 million years ago.
The research was led by Dr. Alon Barash of the Azrieli Faculty of Medicine of Bar-Ilan University, Professor Ella Been of Ono Academic College, Professor Miriam Belmaker of The University of Tulsa, and Dr. Omry Barzilai of the Israel Antiquities Authority.
According to fossil evidence and DNA research, human evolution began in Africa about six million years ago. Approximately two million years ago, ancient humans (nearly, but not yet in modern form) began to migrate from Africa and spread throughout Eurasia, a process known as the “Out of Africa.” ‘Ubeidiya, located in the Jordan Valley near Kibbutz Beit Zera, is one of the places where we have archaeological evidence for this dispersal.
More:
https://www.heritagedaily.com/2022/02/vertebra-discovered-in-the-jordan-valley-tells-the-story-of-prehistoric-migration-from-africa/142665
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Published: 02 February 2022
The earliest Pleistocene record of a large-bodied hominin from the Levant supports two out-of-Africa dispersal events
Alon Barash, Miriam Belmaker, Markus Bastir, Michalle Soudack, Haley D. O’Brien, Holly Woodward, Amy Prendergast, Omry Barzilai & Ella Been
Scientific Reports volume 12, Article number: 1721 (2022)
Abstract
The paucity of early Pleistocene hominin fossils in Eurasia hinders an in-depth discussion on their paleobiology and paleoecology. Here we report on the earliest large-bodied hominin remains from the Levantine corridor: a juvenile vertebra (UB 10749) from the early Pleistocene site of ‘Ubeidiya, Israel, discovered during a reanalysis of the faunal remains. UB 10749 is a complete lower lumbar vertebral body, with morphological characteristics consistent with Homo sp. Our analysis indicates that UB-10749 was a 6- to 12-year-old child at death, displaying delayed ossification pattern compared with modern humans. Its predicted adult size is comparable to other early Pleistocene large-bodied hominins from Africa. Paleobiological differences between UB 10749 and other early Eurasian hominins supports at least two distinct out-of-Africa dispersal events. This observation corresponds with variants of lithic traditions (Oldowan; Acheulian) as well as various ecological niches across early Pleistocene sites in Eurasia.
Introduction
The Levant region, the major land bridge connecting Africa with Eurasia, was a significant dispersal route for Hominins and fauna during the early Pleistocene1,2,3. But while there are numerous Eurasian early Pleistocene sites, fossil hominin remains are rare and present only at four localities dated between 1.1 and 1.9 Mya4,5,6,7,8,9,10,11: Dmanisi (Georgia), Venta Micena (Orce, Granada), Modjokerto and Sangiran (Java, Indonesia), and Sima De Elefante (Atapuerca, Spain) (Supplementary 2: Table 1; Fig. 1a). In contrast, early Pleistocene east African sites containing Homo cranial remains are more abundant, but postcranial remains are scarcer, and the best-preserved skeleton is Nariokotome KNM-WT 1500012,13.
In the Levant, the only site from this time-period with hominin remains is ‘Ubeidiya at the western escarpment of the Jordan Valley which is a part of the broader Rift Valley (Supplementary 1: Fig. 1b,c). The fossil remains include cranial fragments (UB 1703, 1704, 1705, and 1706), two incisor (UB 1700, UB 335) and a molar (UB 1701), identified as Homo cf. erectus/ergaster14,15,16,17,18. It is important to note that some of these fragments were bulldozed out of the ground preceding the first season, while others are considered intrusive and younger than the surroundings deposits17.
In 2018 during a reanalysis of the faunal assemblages done by two of the authors (A. B, and M. B.) a complete vertebral body (UB 10749) with hominin characteristics was found. This is the first hominin postcranial remain found at ‘Ubeidiya securely assigned to early Pleistocene deposits (See “Materials and methods”).
More:
https://www.nature.com/articles/s41598-022-05712-y
