|Geographical range||Morocco, Algeria, Tunisia, and Libya (not shown on map).|
|Period||Later Stone Age, Epipalaeolithic, or Upper Paleolithic|
|Dates||c. 25/23,000 - c. 11,000 cal BP|
|Type site||La Mouillah|
|Major sites||Taforalt, Ifri N'Ammar, Afalou, Tamar Hat, Taza, Ouchtata|
|Followed by||Cardium pottery, Capsian, Mushabian|
The Iberomaurusian is a backed bladelet lithic industry found near the coasts of Morocco, Algeria, and Tunisia. It is also known from a single major site in Libya, the Haua Fteah, where the industry is locally known as the Eastern Oranian.[note 1] The Iberomaurusian seems to have appeared around the time of the Last Glacial Maximum (LGM), somewhere between c. 25,000 and 22,500 cal BP. It would have lasted until the early Holocene c. 11,000 cal BP.
The name of the Iberomaurusian means "of Iberia and Mauritania". Pallary (1909) coined this term to describe assemblages from the site of La Mouillah in the belief that the industry extended over the strait of Gibraltar into the Iberian peninsula. This theory is now generally discounted (Garrod 1938), but the name has stuck.
Pallary (1909) originally described the industry based on material found at the site of l'Abri Mouillah.
In Algeria, Tunisia, and Libya, but not in Morocco, the industry is succeeded by the Capsian industry, whose origins are unclear. The Capsian is believed either to have spread into North-Africa from the Near East, or have evolved from the Iberomaurusian. In Morocco and Western Algeria, the Iberomaurusian is succeeded by the Cardial culture after a long hiatus.
Mr. Luis Siret had already noticed in Southeastern Spain a Palaeolithic industry that included a microlithic toolkit: small and narrow instruments, variously retouched and with these, colouring substances, grinding tools, and hammerstones. However, this very industry, we have noticed it in the La Mouillah shelters, close to Marnia [western Algeria]: it includes hammerstones, cores, simple and backed [à bord retaillés] blades, notched blades, an excessive profusion of very small blades with retouch on their backs and very sharp points [très petites lames à dos retouché et à pointe très aigüe [sic]], circular endscrapers, disks, alterative flake pebbles, and a whole set of tools for grinding colours: pebbles in greenish rock, sandstone wheels, pebbles with median depressions, still impregnated with red colour, and as colouring substances, hematites, ocre, oligist iron. Finally, some boring tools in polished bone and objects of adornment: ellongated pebbles and shells pierced for suspension. But nothing in the way of polished stone or pottery.
What clearly distinguishes this industry is the smallness of the toolkit, especially the crescent-shaped backed blades of which one finds thousands of examples. True geometric pieces (in the shape of trapeziums) are excessively rare, barely three parts per thousand, whereas in the ancient Neolithic with pottery and polished stone, small pieces of flint with geometric shapes are very common.
I named Ibero-Maurusian the period that characterises this industry.-- Paul Pallary, Instructions pour les recherches préhistoriques dans le nord-ouest de l'Afrique (1909, pp. 45-46, translation)
Because the name of the Iberomaurusian implies Afro-European cultural contact now generally discounted, researchers have proposed other names:
What follows is a timeline of all published radiocarbon dates from reliably Iberomaurusian contexts, excluding a number of dates produced in the 1960s and 1970s considered "highly doubtful" (Barton et al. 2013). All dates, calibrated and Before Present, are according to Hogue and Barton (2016). The Tamar Hat date beyond 25,000 cal BP is tentative.
In 2013, Iberomaurusian skeletons from the prehistoric sites of Taforalt and Afalou were analyzed for ancient DNA. All of the specimens belonged to maternal clades associated with either North Africa or the northern and southern Mediterranean littoral, indicating gene flow between these areas since the Epipaleolithic. The ancient Taforalt individuals carried the mtDNA Haplogroup N subclades like U6 and M which points to population continuity in the region dating from the Iberomaurusian period.
Loosdrecht et al. (2018) analysed genome-wide data from seven ancient individuals from the Iberomaurusian Grotte des Pigeons site near Taforalt in eastern Morocco. The fossils were directly dated to between 15,100 and 13,900 calibrated years before present. The scientists found that all males belonged to haplogroup E1b1b, common among Afroasiatic males. The male specimens with sufficient nuclear DNA preservation belonged to the paternal haplogroup E1b1b1a1 (M78), with one skeleton bearing the E1b1b1a1b1 parent lineage to E-V13, one male specimen belonged to E1b1b (M215*). These Y-DNA clades are closely related to the E1b1b1b (M123) subhaplogroup that has been observed in skeletal remains belonging to the Epipaleolithic Natufian and Pre-Pottery Neolithic cultures of the Levant. Maternally, the Taforalt remains bore the U6a and M1b mtDNA haplogroups, which are common among modern Afroasiatic-speaking populations in Africa. A two-way admixture scenario using Natufian and modern West African samples as reference populations inferred that the seven Taforalt individuals are best modeled genetically as 63.5% Natufian-related and 36.5% Hadza-like ancestries, with no apparent gene flow from the Epigravettian culture of Paleolithic southern Europe. The scientists indicated that further ancient DNA testing at other Iberomaurusian archaeological sites would be necessary to determine whether the Taforalt samples were representative of the broader Iberomaurusian gene pool.