.JPG) Aterian point from Zaccar, Djelfa region, Algeria | |
| Geographical range | North Africa,Sahara,Northeast Africa,Arabia?,Oman?,Thar Desert? |
|---|---|
| Period | Middle Palaeolithic –Upper Palaeolithic |
| Dates | c. 150,000 – c. 20,000 BP[1] |
| Type site | Bir el Ater |
| Major sites | Taforalt,Ifri n'Ammar,Kharga Oasis,Dar es Soltan I & II,Grotte des Contrebandiers,Mugharet el Aliya,Uan Tabu,Adrar Bous,Bir Tarfawi |
| Preceded by | Mousterian |
| Followed by | Emiran,Ahmarian,Khormusan,Iberomaurusian |
TheAterian is aMiddle Stone Age (orMiddle Palaeolithic) stone toolindustry centered inNorth Africa, fromMauritania toEgypt, but also possibly found inOman and theThar Desert.[2][3] The earliest Aterian dates to c. 150,000 years ago, at the site of Ifri n'Ammar in Morocco.[4] However, most of the early dates cluster around the beginning of theLast Interglacial, around 150,000 to 130,000 years ago, when the environment of North Africa began to ameliorate.[5] The Aterian disappeared around 20,000 years ago.
The Aterian is primarily distinguished through the presence of tanged or pedunculated tools,[6] and is named after the type site ofBir el Ater, south ofTébessa.[7] Bifacially-worked, leaf-shaped tools are also a commonartefact type in Aterian assemblages, and so areracloirs andLevallois flakes and cores. Items of personal adornment (pierced and ochredNassarius shell beads) are known from at least one Aterian site, with an age of 82,000 years.[8] The Aterian is one of the oldest examples of regional technological diversification, evidencing significant differentiation to older stone tool industries in the area, frequently described asMousterian. The appropriateness of the term Mousterian is contested in a North African context, however.
Fleming et al. (2013) stated:
But Scerri (2012) also reckoned that the (Aterian) peoples were ultimately ofsub-Saharan origin, or as we have proposed, they dispersed fromEthiopia by way of theSahel andLake Chad and the (interglacial)Saharanwet spots.[9]
The technological character of the Aterian has been debated for almost a century,[6] but has until recently eluded definition. The problems defining the industry have related to its research history and the fact that a number of similarities have been observed between the Aterian and other North African stone tool industries of the same date.[10] Levallois reduction is widespread across the whole of North Africa throughout the Middle Stone Age, and scrapers and denticulates are ubiquitous. Bifacial foliates moreover represent a huge taxonomic category and the form and dimension of such foliates associated with tanged tools is extremely varied.[6] There is also a significant variation of tanged tools themselves, with various forms representing both different tool types (e.g., knives, scrapers, points) and the degree tool resharpening.[11]
More recently, a large-scale study of North African stone tool assemblages, including Aterian assemblages, indicated that the traditional concept of stone tool industries is problematic in the North African Middle Stone Age. Although the term Aterian defines Middle Stone Age assemblages from North Africa with tanged tools, the concept of an Aterian industry obfuscates other similarities between tanged tool assemblages and other non-Aterian North African assemblages of the same date.[12] For example, bifacial leaf points are found widely across North Africa in assemblages that lack tanged tools and Levallois flakes and cores are near ubiquitous. Instead of elaborating discrete industries, the findings of the comparative study suggest that North Africa during the Last Interglacial comprised a network of related technologies whose similarities and differences correlated with geographical distance and thepalaeohydrology of aGreen Sahara.[12] Assemblages with tanged tools may therefore reflect particular activities involving the use of such tool types, and may not necessarily reflect a substantively different archaeological culture to others from the same period in North Africa. The findings are significant because they suggest that current archaeological nomenclatures do not reflect the true variability of the archaeological record of North Africa during the Middle Stone Age from the Last Interglacial, and hints at how early modern humans dispersed into previously uninhabitable environments. This notwithstanding, the term still usefully denotes the presence of tanged tools in North African Middle Stone Age assemblages.
Tanged tools persisted in North Africa until around 20,000 years ago, with the youngest sites located in Northwest Africa. By this time, the Aterian lithic industry had long ceased to exist in the rest of North Africa due to the onset of theIce Age, which in North Africa, resulted in hyperarid conditions. Assemblages with tanged tools, 'the Aterian', therefore have a significant temporal and spatial range. However, the exact geographical distribution of this lithic industry is uncertain. The Aterian's spatial range is thought to have existed in North Africa up to the Nile Valley[13][1] Possible Aterian lithic tools have also been discovered in Middle Paleolithic deposits inOman and theThar Desert.[3]
MostengravedBubaline rock art appear in the northern region of Tassili, atWadi Djerat.[14]Levallois instruments in the area may indicate that Bubaline rock art was developed by Aterians.[14]
In theSahara, Aterians camped near lakes, rivers, and springs, and engaged in the activity of hunting (e.g., antelope, buffalo, elephant, rhinoceros) and some gathering.[15] As a result of a hyper-aridification event of SaharanAfrica, which occurred around the time ofEurope'sWürm glaciation event, Aterian hunter-gatherers may have migrated into areas oftropical Africa andcoastal Africa.[15] More specifically, amid aridification inMIS 5 and regional change of climate in MIS 4, in the Sahara and theSahel, Aterians may have migrated southward intoWest Africa (e.g., Baie du Levrier,Mauritania; Tiemassas,Senegal; LowerSenegal River Valley).[16]
The Aterian is associated with earlyHomo sapiens at a number of sites in Morocco.[6] While theJebel Irhoud specimens were originally noted to have been similar to later Aterian and someIberomaurusian specimens,[17] further examinations revealed that the Jebel Irhoud specimens are similar to them in some respects but differ in that the Jebel Irhoud specimens have a continuous supraorbital torus while the Aterian and Iberomaurasian specimens have a discontinuous supraorbital torus or in some cases, none at all,[18] and from this, it was concluded that the Jebel Irhoud specimens represent archaicHomo sapiens while the Aterian and Iberomaurusian specimens represent anatomically modernHomo sapiens. The 'Aterian' fossils also display morphological similarities with the earlyout of Africa modern humans found atSkhul andQafzeh in the Levant, and they are broadly contemporary to them.[19][20] Apart from producing a highly distinctive and sophisticated stone tool technology, these early North African populations also seem to have engaged withsymbolically constituted material culture, creating what are amongst the earliest African examples of personal ornamentation.[8] Such examples of shell 'beads' have been found far inland, suggesting the presence of long distance social networks.[21]
Studies of the variation and distribution of the Aterian have also now suggested that associated populations lived in subdivided populations, perhaps living most of their lives in relative isolation and aggregating at particular times to reinforce social ties.[12] Such a subdivided population structure has also been inferred from the pattern of variation observed in early African fossils ofHomo sapiens.[22]
Associated faunal studies suggest that the people making the Aterian exploited coastal resources as well as engaging in hunting.[23] As the points are small and lightweight, it is likely that they were not hand-delivered but instead thrown. There is no evidence that a spear thrower was used, but the points have characteristics similar to atlatl dart points. It has so far been difficult to estimate whether Aterian populations further inland were exploiting freshwater resources as well. Studies have suggested thathafting was widespread, perhaps to maintain flexibility in the face of strongly seasonal environment with a pronounced dry season.[6] Scrapers, knives and points all seem to have been hafted, suggesting a wide range of activities were facilitated by technological advances. It is probable that plant resources were also exploited. Although there is no direct evidence from the Aterian yet, plant processing is evidenced in North Africa from as much as 182,000 years ago.[24] In 2012, a 90,000-year-old bone knife was discovered in the Dar es-Soltan I cave, which is basically made of a cattle-sized animal's rib.[25]
Due to the archaeological spread of the Aterian culture and unique linguistic spread of the Niger-Congo languages (e.g.,languages of the Atlantic coast inSenegal,Kordofan inSudan), Fleming et al. (2013) indicates that possibly the "Nilo-Saharan linguistic phylum is derived from the Aterian culture area."[9]
| ThePaleolithic |
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| ↑Pliocene (beforeHomo) |
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| ↓Mesolithic |
