Rosalia Gallotti

An older origin for the Acheulean at Melka Kunture (Upper Awash, Ethiopia): Techno-economic behaviours at Garba IVD

In the 1970s and 1980s, the emergence of the Acheulean at Melka Kunture (Upper Awash, Ethiopia) was dated to 1 Ma (million years ago), based on the typo-metrical analysis of the lithic assemblage of Garba XIIJ. Older sites such as Gombore I, Karre I, and Garba IV (1.7-1.5 Ma) were classified as Oldowan/Developed Oldowan. Consequently, the Oldowan and the Acheulean at Melka Kunture were interpreted as two distinct technologies separated by a chronological gap of 0.5 Ma. The archaeostratigraphic unit D of Garba IV, dated to ~1.5 Ma, yielded one of the richest Early Stone Age lithic series in East Africa. In this paper, a review traces methods of technological analysis, based on the concept of chaîne opératoire, to update our knowledge of the techno-economic behaviours at this site. The results show two major elements characteristic of cultural changes in the Melka Kunture sequence: (1) the emergence of a new chaîne opératoire focused on large flake/large cutting tool (LCT) production, and (2) a large variability of small débitage modalities with systematic preparation of the striking platform and the appearance of a certain degree of predetermination. These technological traits are shared by the contemporaneous sites in East Africa and are considered to be typical of the early Acheulean. This suggests an older origin for the Acheulean at Melka Kunture, 0.5 Ma than previously inferred.

A human deciduous tooth and new 40Ar/39Ar dating results from the Middle Pleistocene archaeological site of Isernia La pineta, southern Italy

Isernia La Pineta (south-central Italy, Molise) is one of the most important archaeological localities of the Middle Pleistocene in Western Europe. It is an extensive open-air site with abundant lithic industry and faunal remains distributed across four stratified archaeosurfaces that have been found in two sectors of the excavation (3c, 3a, 3s10 in sect. I; 3a in sect. II). The prehistoric attendance was close to a wet environment, with a series of small waterfalls and lakes associated to calcareous tufa deposits. An isolated human deciduous incisor (labelled IS42) was discovered in 2014 within the archaeological level 3 coll (overlying layer 3a) that, according to new 40Ar/39Ar measurements, is dated to about 583–561 ka, i.e. to the end of marine isotope stage (MIS) 15. Thus, the tooth is currently the oldest human fossil specimen in Italy; it is an important addition to the scanty European fossil record of the Middle Pleistocene, being associated with a lithic assemblage of local raw materials (flint and limestone) characterized by the absence of handaxes and reduction strategies primarily aimed at the production of small/medium-sized flakes. The faunal assemblage is dominated by ungulates often bearing cut marks. Combining chronology with the archaeological evidence, Isernia La Pineta exhibits a delay in the appearance of handaxes with respect to other European Palaeolithic sites of the Middle Pleistocene. Interestingly, this observation matches the persistence of archaic morphological features shown by the human calvarium from the Middle Pleistocene site of Ceprano, not far from Isernia (south-central Italy, Latium). In this perspective, our analysis is aimed to evaluate morphological features occurring in IS42.

Obsidian exploitation and utilization during the Oldowan at Melka Kunture (Ethiopia)

The Oldowan assemblages of Melka Kunture represent the earliest known example of obsidian utilization. The proximity of primary and secondary sources of Balchit obsidian, a high quality raw material easily available in large quantities, is a unique situation among East African Oldowan sites. Obsidian represents a large component of the lithic assemblages at Melka Kunture, not only during the Oldowan but during the Acheulian times as well. Other volcanic rocks are incorporated into the technological system at Melka Kunture such as basalts, ignimbrites, trachytes and trachybasalts, which present completely different characteristics for knapping.

Taphonomic interpretation of the Developed Oldowan site of Garba IV (Melka Kunture, Ethiopia) through a GIS application

The lithic tools are made from volcanic rocks (obsidian, basalt, lava, trachyte, tuff). Most of the flake tools are made of obsidian, while the pebble tools are mainly of other volcanic rocks. This lithic assemblage is characterized by a high percentage of flakes and fragments, mono- and bidirectional choppers, heavy scrapers and polyhedrons. It also includes broken and bat- tered pebbles, cores and core fragments, some retouched tools (side-scrapers, denticulates and notches), a few bifacial tools and two cleavers (FIGURE

The Unknown Oldowan: ~1.7-Million-Year-Old Standardized Obsidian Small Tools from Garba IV, Melka Kunture, Ethiopia

The Oldowan Industrial Complex has long been thought to have been static, with limited internal variability, embracing techno-complexes essentially focused on small-to-medium flake production. The flakes were rarely modified by retouch to produce small tools, which do not show any standardized pattern. Usually, the manufacture of small standardized tools has been interpreted as a more complex behavior emerging with the Acheulean technology. Here we report on the ~1.7 Ma Oldowan assemblages from Garba IVE-F at Melka Kunture in the Ethiopian highland. This industry is structured by technical criteria shared by the other East African Oldowan assemblages. However, there is also evidence of a specific technical process never recorded before, i.e. the systematic production of standardized small pointed tools strictly linked to the obsidian exploitation. Standardization and raw material selection in the manufacture of small tools disappear at Melka Kunture during the Lower Pleistocene Acheulean. This proves that 1) the emergence of a certain degree of standardization in tool-kits does not reflect in itself a major step in cultural evolution; and that 2) the Oldowan knappers, when driven by functional needs and supported by a highly suitable raw material, were occasionally able to develop specific technical solutions. The small tool production at ~1.7 Ma, at a time when the Acheulean was already emerging elsewhere in East Africa, adds to the growing amount of evidence of Oldowan techno-economic variability and flexibility, further challenging the view that early stone knapping was static over hundreds of thousands of years.

GIS and Intra-Site Spatial Analyses: An Integrated Approach for Recording and Analyzing the Fossil Deposits at Casablanca Prehistoric Sites (Morocco)

The Mio-Plio-Pleistocene sequence at Casablanca, covering the last six million years, is well known in scientific literature. The variability and the chronology of the Acheulian sequence is documented by systematic, modern and controlled investigations in various sites (Unit L and Hominid Cave at Thomas I Quarry, Rhinoceros Cave at Oulad Hamida 1 Quarry, Sidi Abderrahman Extension Quarry, Bear’s Cave and Cap Chatelier at Sidi Abderrahman Quarry) which have taken place within the framework of the Franco-Moroccan co-operative project “Casablanca”. In order to manage the excavation data and to explore the taphonomic nature of Unit L, Hominid Cave and Rhinoceros Cave, where research is still in progress, an approach combining a Geographic Information System (GIS) and spatial analysis techniques was developed, incorporating all existing information produced from previous excavations and recent surveys of the sites. The amalgamation of this data into a GIS has resulted in a digital database that allows the production of simultaneous or separate visualizations and analyses of the fossils, artifacts and geological materials within their original spatial contexts and also permits intra-site spatial analyses that allow a comprehensive investigation of the site formation processes.

Pleistocene Hominins as a Resource for Carnivores: A c. 500,000-Year-Old Human Femur Bearing Tooth-Marks in North Africa (Thomas Quarry I, Morocco).

In many Middle Pleistocene sites, the co-occurrence of hominins with carnivores, who both contributed to faunal accumulations, suggests competition for resources as well as for living spaces. Despite this, there is very little evidence of direct interaction between them to-date. Recently, a human femoral diaphysis has been recognized in South-West of Casablanca (Morocco), in the locality called Thomas Quarry I. This site is famous for its Middle Pleistocene fossil hominins considered representatives of Homo rhodesiensis. The bone was discovered in Unit 4 of the Grotte à Hominidés (GH), dated to c. 500 ky and was associated with Acheulean artefacts and a rich mammalian fauna. Anatomically, it fits well within the group of known early Middle Pleistocene Homo, but its chief point of interest is that the diaphyseal ends display numerous tooth marks showing that it had been consumed shortly after death by a large carnivore, probably a hyena. This bone represents the first evidence of consumption of human remains by carnivores in the cave. Whether predated or scavenged, this chewed femur indicates that humans were a resource for carnivores, underlining their close relationships during the Middle Pleistocene in Atlantic Morocco.

Before the Acheulean in East Africa: An Overview of the Oldowan Lithic Assemblages

In 2009, Hovers and Braun published in Springer’s Vertebrate Paleobiology and Paleoanthropology Series the volume “Interdisciplinary Approaches to the Oldowan,” stemming from the symposium of the 2006 SAA meeting in Puerto Rico. Many contributors focused on the description of the Oldowan as a lithic production system, showing the high technical variability of the techno-complexes. As pointed out by Braun and Hovers (2009: 4), even if most or all scholars agree that the study of Oldowan behaviors is fundamental to understand early hominin evolution, “not all would agree on a definition of the Oldowan.” Forty years after it was first defined (Leakey 1971, 1975), many sites scattered over approximately one million years are labelled as “Oldowan” in large-scale syntheses. While the available data are highly fragmented both in time and space, and the study of lithic assemblages follows different theoretical and methodological approaches, major overviews simply take for granted that a correlation among the East African assemblages is inescapable. However, the term Oldowan is still a vague concept, lacking a comprehensive definition of what an Oldowan technology is. Additionally, who were the authors of the Oldowan stone tools remains an open question.

Before, During, and After the Early Acheulean at Melka Kunture (Upper Awash, Ethiopia): A Techno-economic Comparative Analysis

The emergence of the Acheulean is a major topic, currently debated by archaeologists researching all over East Africa. Despite the ongoing discussion and the increasing amount of available data, the mode(s) of the technological changes leading to this emergence remain(s) largely unexplained. Overall, there is a dearth of continuous stratigraphic sequences recording both the late Oldowan and the early Acheulean at the same site. Accordingly, the technological changes cannot be evaluated taking into account the variability of each microregional context. Besides, the early Acheulean must be defined not only with respect to the Oldowan, but also in comparison with the following middle Acheulean.

The Emergence of the Acheulean in East Africa: Historical Perspectives and Current Issues

We review below the Acheulean of East Africa from two perspectives: the history of research and the current state of the art. The definition of Acheulean industries has changed considerably over 150 years and since the earliest research in Africa. A brief presentation of the main discoveries, of the many theories, and of the various methods used in Acheulean archaeological research will help in understanding the current debate and the topics addressed in this volume.