Application of a new typological approach to classifying denticulate and notched tools: the study of two Mousterian lithic assemblages

Identifying tools by means of morphological attributes are widely used in lithic studies to categorize retouched artifacts from different archaeological periods. This procedure has facilitated the exchange of information between separate researchers and has improved the comparison of different assemblages. In these classifications, denticulates and notched tools have been regularly interpreted as analogues and chronologically unvaried in different and vast territories. Based on the definitions developed by Bordes, the denticulate category has become a catchall for any kind of tool bearing concavities. In this paper a new quantitative approach to the classification of denticulates and notched tools is proposed. The new methodology is based on measuring the length of notches and their distribution on the perimeter of the blank. Analyzing the lithic series of the Abric Romaní rock-shelter (Spain) and Grotta Maggiore di San Bernardino (Italy) led to the identification of 11 redundant forms: eight denticulates and three notched tools. Moreover, the application of Kuhn’s Geometric Index of Unifacial Reduction brought local manufacturing trends to light, calling into question the presumed geographical uniformity of these categories of artifacts.     

Toolstone constraints on knapping skill: Levallois reduction with two different raw materials

Lithic raw material constraints are widely assumed to be a determining factor of flaked stone tool morphology, but this assumption remains largely untested. We conducted a controlled experiment to determine whether a knapper’s growing replication skills would be hindered if the toolstone used was switched from large flakes of an easily worked chert to nodules of less tractable one. Two batches of Preferential Levallois cores were knapped, an earlier series made from standardised large flakes of sediments dominated by chalcedonic quartz followed by a more challenging one using variably-shaped, cortical nodules of microcrystaline quartz that varies in the completeness of quartz replacement of calcite and dolomite. Skill level markers were designed to measure the knapper’s ability to achieve a series of set goals. These were quantified and subjected to statistical testing. In all but one test, significant increases in skill could be detected from the earlier to the later batch of reductions, despite the drop in toolstone quality. Significant improvements in the consistency of the knapper’s output could also be detected. However, the switch to a more challenging, nodular chert did require extra shaping, which resulted in more waste. This masked visible progress towards producing a less costly core. Overall, our results do not support the assumed primacy of toolstone constraints over other factors in influencing the morphology of flaked stone tools.     

Soanian cores and core-tools from Toka,Northern India: Towards a new typo-technological organization

Since the initial ‘discovery’ and explanation of the Soanian industry by H. de Terra and T.T. Paterson in the 1930s, multiple interpretations have been offered by various investigators on its chronology, geographical distribution, relationship with the Acheulian, and technological progression. In most cases, the presence of explicit tool-types and the absence of Acheulian bifaces were the distinguishing features utilized to recognize the industry as well as delineate its technological development through time and space. However, in light of recent intra-regional geoarchaeological investigations and the analyses of a large surface assemblage by the author, the existing framework for Soanian typology is in need of judicious revision. In this paper, some of the methodological and interpretative problems are briefly discussed from a historical perspective and the technological organization of cores and core-based tools from Toka, a rich factory site, is described. Essentially, the Toka assemblage comprises a dynamic range of non-biface tool-types on quartzite, which possess varying patterns of core reduction techniques, edge retouch, and associated use-wear. The study also introduces a modified typological classification of specific chopper morphologies, which may be broadly applicable in global context.     

Refuting the technological cornerstone of the Ice-Age Atlantic crossing hypothesis

The “North Atlantic Ice-Edge Corridor” hypothesis proposes that sometime during the Last Glacial Maximum, roughly 26,500–19,000 years ago, human populations from southern France and the Iberian Peninsula made their way across the North Atlantic and colonized North America. A key element of that hypothesis is the apparent similarity between stone-tool-production techniques of Solutrean peoples of Western Europe and Clovis and purportedly pre-Clovis peoples of eastern North America, most especially the supposed intentional use of “controlled overshot flaking,” a technique for thinning a bifacial stone tool during manufacture. Overshot flakes, struck from prepared edges of the tool, travel across the face and remove part of the opposite margin. Experimental and archaeological data demonstrate, however, that the most parsimonious explanation for the production of overshot flakes is that they are accidental products created incidentally and inconsistently as knappers attempt to thin bifaces. Thus, instead of representing historical divergence, overshot flakes in Clovis and Solutrean assemblages mark convergence in the use of the same simple solution for thinning bifaces that produced analogous detritus.     

Excavations at the Bairaki Lower Paleolithic Site,Trans-Dniesteria,in 2011

Early Paleolithic deposits of the left-bank high seventh fluvial terrace of the Dniester were excavated at Bairaki, Trans-Dniestria. The assemblage is comprised of 28 artifacts including distinct flakes, cores, and Lower Paleolithic tools. Based on the 2011 geological and archaeological study, tools from the riverbed alluvium, paralleled by those of the Middle Oldowan, date to the earliest Lower Pleistocene. Bairaki, then, should be classified among the most ancient Paleolithic sites in Eastern Europe.     

试析华北地区距今1万年左右的社会复杂现象

中国华北地区的河北阳原于家沟、北京怀柔转年、北京门头沟东胡林、河北徐水南庄头、山西吉县柿子滩、河南新密李家沟6个遗址存在有技术革新、技术复杂化的证据并展示出人类行为和社会关系在这一地区的空前发展。技术的进步和复杂,人口的大幅增长与扩张,以及各种社会关系的建立,促使华北地区在距今1万年左右社会发展进入一个新的复杂的阶段。     

内蒙古鄂尔多斯市乌兰木伦旧石器时代中期遗址

乌兰木伦遗址由邻近的第1、第2和第3地点组成。其中在第1地点获得了石制品2780件、动物化石3423件,并发现用火遗迹。遗址年代为距今7～3万年,属旧石器时代中期。遗址为原地埋藏,其石制品类型及工业组合与欧洲旧石器时代中期文化近似,动物化石则属于华北晚更新世的萨拉乌苏动物群。     

The Mousterian bone retouchers of Noisetier Cave: experimentation and identification of marks

Retouchers are fragments of bone used during the Paleolithic to strike stone flakes in order to transform them into retouched tools. Our experiments show that the mark produced on retouchers differs depending on whether they were used to strike flint or quartzite. Our results suggest that numerous pits, most often with an ovoid form, characterize the retouching of quartzite flakes. Most of the scores produced with this material have a sinuous morphology with rough interior faces. The areas with superposed traces have a pitted appearance. On the other hand, the retouching of flint flakes, produces pits that are most often triangular in form. Most of the scores have a rectilinear morphology with smooth interior faces and their superposition results in the formation of hatch marks. There is also a relationship between the characteristics of the mark and the relative state of freshness of the retouchers. The validity of the criteria identified was confirmed by a blind test. These diagnostic criteria were applied to archaeological retouchers from the Mousterian site of Noisetier Cave. The results obtained improve our knowledge of the technical behaviors of Neanderthals and allow us to address questions concerning their techno-economic implications.     

A Paleolithic Cache at Tolbor (Northern Mongolia)*

This study presents analyses of a unique assemblage of lithic artifacts, 57 large flakes, discovered in the Ikh Tulberiin Gol River valley of Northern Mongolia. The assemblage represents the first Paleolithic cache ever discovered in Mongolia and is an isolated find, not directly associated with a habitation or logistic activity site. Results of use-wear analysis suggest most of the flakes were unused, with only a few minimally used for processing wood. GIS analyses of the local landscape indicate that the placement of the artifacts was likely symbolic, rather than utilitarian or for storage, lying in an east-west linear viewshed of the primary mountain pass to an adjacent river basin. Based on the context of the discovery as an isolated find and technical-typological features of the artifacts, the assemblage is interpreted as a cache of tool blanks that was purposefully and symbolically positioned on the landscape relative to the primary mountain pass by Upper Paleolithic hunter-gatherers.     

The Sibiryachikha Facies of the Middle Paleolithic of the Altai

The Middle Paleolithic industry of the Sibiryachikha facies is described on the basis of two stratified sites in the Altai – Okladnikov Cave (formerly Sibiryachikha) and Chagyrskaya Cave. Stratigrtraphic, environmental, and chronological aspects are discussed. The structure of two cave sites is analyzed. Petrographic properties of raw material are described and the typology and technology of the lithic industry are compared with those of other local Middle Paleolithic traditions. The Sibiryachikha facies of the Altai Middle Paleolithic represented by two sites was clearly associated with a small group of Neanderthals who migrated from western Central Asia. Eventually the Middle Paleolithic industry evolved into a local variant of the Upper Paleolithic.