|Id||Title||Authors||Abstract||Picture||Thematic fields||Recommender||Reviewers||Submission date|
16 May 2022
Wood technology: a Glossary and Code for analysis of archaeological wood from stone tool culturesAnnemieke Milks, Jens Lehmann, Utz Böhner, Dirk Leder, Tim Koddenberg, Michael Sietz, Matthias Vogel, Thomas Terberger https://osf.io/x8m4j
Open glossary for wood technologiesRecommended by Ruth Blasco based on reviews by Paloma Vidal-Matutano, Oriol López-Bultó, Eva Francesca Martellotta and Laura Caruso Fermé
Wood is a widely available and versatile material, so it is not surprising that it has been a key resource throughout human history. However, it is more vulnerable to decomposition than other materials, and its direct use is only rarely recorded in prehistoric sites. Despite this, there are exceptions (e.g., [1-5]  and references therein), and indirect evidence of its use has been attested through use-wear analyses, residue analyses (e.g., ) and imprints on the ground (e.g., ). One interesting finding of note is that the technology required to make, for example, wooden spears was quite complex , leading some authors to propose that this type of tool production represented a cognitive leap for Pleistocene hominids . Other researchers, however, have proposed that the production process for wooden tools could have been much easier than is currently thought . Be that as it may, in recent years researchers have begun to approach wood remains systematically, developing analyses of natural and anthropogenic damage, often with the help of experimental reference samples.
In this work, the authors elaborate a comprehensive glossary as a first step towards the understanding of the use of wood for technological purposes in different times and places, as there is still a general gap in the established nomenclature. Thus, this glossary is a synthesis and standardisation of analytical terms for early wood technologies that includes clear definitions and descriptions of traces from stone tool-using cultures, to avoid confusion in ongoing and future studies of wood tools. For this, the authors have carried out a detailed search of the current literature to select appropriate terms associated with additional readings that provide a wide, state-of-the-art description of the field of wood technology.
An interesting point is that the glossary has been organised within a chaîne opératoire framework divided into categories including general terms and natural traces, and then complemented by an appendix of images. It is important to define the natural traces –understanding these as alterations caused by natural processes–because they can mask those modifications produced by other agents affecting both unmodified and modified wood before, during or after its human use.
In short, the work carried out by Milks et al.  is an excellent and complete assessment and vital to the technological approach to wooden artifacts from archaeological contexts and establishing a common point for a standardised nomenclature. One of its particular strengths is that the glossary is a preprint that will remain open during the coming years, so that other researchers can continue to make suggestions and refinements to improve the definitions, terms and citations within it.
 Oakley, K., Andrews, P., Keeley, L., Clark, J. (1977). A reappraisal of the Clacton spearpoint. Proceedings of the Prehistoric Society 43, 13-30. https://doi.org/10.1017/S0079497X00010343
 Thieme, H. (1997). Lower Palaeolithic hunting spears from Germany. Nature 385, 807-810. https://doi.org/10.1038/385807a0
 Schoch, W.H., Bigga, G., Böhner, U., Richter, P., Terberger, T. (2015). New insights on the wooden weapons from the Paleolithic site of Schöningen. Journal of Human Evolution 89, 214-225. https://doi.org/10.1016/j.jhevol.2015.08.004
 Aranguren, B., Revedin, A., Amico, N., Cavulli, F., Giachi, G., Grimaldi, S. et al. (2018). Wooden tools and fire technology in the early Neanderthal site of Poggetti Vecchi (Italy). Proceedings of the National Academy of Sciences. 115, 2054-2059. https://doi.org/10.1073/pnas.1716068115
 Rios-Garaizar, J., López-Bultó, O., Iriarte, E., Pérez-Garrido, C., Piqué, R., Aranburu, A., et al. (2018). A Middle Palaeolithic wooden digging stick from Aranbaltza III, Spain. PLoS ONE 13(3): e0195044. https://doi.org/10.1371/journal.pone.0195044
 Milks, A. G., Lehmann, J., Böhner, U., Leder, D., Koddenberg, T., Sietz, M., Vogel, M., Terberger, T. (2022). Wood technology: a Glossary and Code for analysis of archaeological wood from stone tool cultures. Peer-reviewed and recommended by PCI Archaeology https://doi.org/10.31219/osf.io/x8m4j
 Nugent, S. (2006). Applying use-wear and residue analyses to digging sticks. Mem Qld Mus Cult Herit Ser 4, 89-105. https://search.informit.org/doi/10.3316/informit.890092331962439
 Allué, E., Cabanes, D., Solé, A., Sala, R. (2012). Hearth Functioning and Forest Resource Exploitation Based on the Archeobotanical Assemblage from Level J, in: i Roura E. (Ed.), High Resolution Archaeology and Neanderthal Behavior: Time and Space in Level J of Abric Romaní (Capellades, Spain). Springer Netherlands, Dordrecht, pp. 373-385. https://doi.org/10.1007/978-94-007-3922-2_9
 Ennos, A.R., Chan, T.L. (2016). "Fire hardening" spear wood does slightly harden it, but makes it much weaker and more brittle. Biology Letters 12. https://doi.org/10.1098/rsbl.2016.0174
 Haidle, M.N. (2009). How to think a simple spear?, in: de Beaune S.A., Coolidge F.L., Wynn T. (Eds.), Cognitive Archaeology and Human Evolution. Cambridge University Press, New York, pp. 57-73.
 Garofoli, D. (2015). A Radical Embodied Approach to Lower Palaeolithic Spear-making. Journal of Mind and Behavior 36, 1-26.
|Wood technology: a Glossary and Code for analysis of archaeological wood from stone tool cultures||Annemieke Milks, Jens Lehmann, Utz Böhner, Dirk Leder, Tim Koddenberg, Michael Sietz, Matthias Vogel, Thomas Terberger||<p>The analysis of wood technologies created by stone tool-using cultures remains underdeveloped relative to the study of lithic and bone technologies. In recent years archaeologists have begun to approach wood assemblages systematically, developi...||Ancient Palaeolithic, Archaeobotany, Mesolithic, Middle Palaeolithic, Neolithic, Raw materials, Taphonomy, Traceology, Upper Palaeolithic||Ruth Blasco||2021-12-01 12:18:53||View|
26 Apr 2022
Archaeophenomics of ancient domestic plants and animals using geometric morphometrics : a reviewAllowen Evin, Laurent Bouby, Vincent Bonhomme, Angèle Jeanty, Marine Jeanjean, Jean-Frédéric Terral https://doi.org/10.31219/osf.io/skeu5
Archaeophenomics: an up-and-coming field in bioarchaeologyRecommended by Anneke H. van Heteren based on reviews by Stefan Schlager and 1 anonymous reviewer
Anneke H. van Heteren based on reviews by Stefan Schlager and 1 anonymous reviewer
Phenomics is the analysis of high-dimensional phenotypic data . Phenomics research strategies are capable of linking genetic variation to phenotypic variation , but a genetic component is not absolutely necessary. The paper “Archaeophenomics of ancient domestic plants and animals using geometric morphometrics: a review” by Evin and colleagues  examines the use of geometric morphometrics in bioarchaeology and coins the term archaeophenomics. Archaeophenomics can be described as the large-scale phenotyping of ancient remains, and both addresses taxonomic identification, as well as infers spatio-temporal agrobiodiversity dynamics. It is a relatively new field in bioarchaeology with the first paper using this approach stemming from 2004. This study by Evin et al.  presents an excellent review and unquestionably demonstrates the potential of archaeophenomics.
The authors provide an exhaustive review specifically of bioarchaeological studies in international journals using geometric morphometrics to study archaeological remains of domestic species. Although geometric morphometrics lends itself well for archaeophenomics, readers should keep in mind that this is not the only method and other approaches might equally fall under archaeophenomics as long as high-dimensional phenotypic archaeological data are involved.
Distinguishing archaeophenomics from phenomics is important because of a critical difference. Archaeological remains are often altered by taphonomical processes. As such data may not be as complete as when working with modern specimens. Although this poses difficulties, morphometric analyses can usually still be performed as long as the structures presenting the relevant geometrical features are present. Even fragmented remains can be studied with a restricted version of the original landmarking/measurement protocol.
Evin et al.  define archaeophenomics as “phenomics of the past”. This is only partly correct. It can be deduced from their review that they really mean phenomics of our (human) past. This leaves a gap for phenomics of the non-human past, for which I suggest the term palaeophenomics.
 Jin, L. (2021). Welcome to the Phenomics Journal. Phenomics, 1, 1–2. https://doi.org/10.1007/s43657-020-00009-4.
|Archaeophenomics of ancient domestic plants and animals using geometric morphometrics : a review||Allowen Evin, Laurent Bouby, Vincent Bonhomme, Angèle Jeanty, Marine Jeanjean, Jean-Frédéric Terral||<p>Geometric morphometrics revolutionized domestication studies through the precise quantification of the phenotype of ancient plant and animal remains. Geometric morphometrics allow for an increasingly detailed understanding of the past agrobiodi...||Archaeobotany, Archaeometry, Bioarchaeology, Zooarchaeology||Anneke H. van Heteren||2022-02-17 09:50:39||View|
11 Jan 2022
Tektite geoarchaeology in mainland Southeast AsiaBen Marwick, Son Thanh Pham, Rachel Brewer, Li-Ying Wang https://doi.org/10.31235/osf.io/93fpa
Tektites as chronological markers: after careful geoarchaeological validation only!Recommended by Alain Queffelec and Shanti Pappu based on reviews by Sheila Mishra, Toshihiro Tada, Mike Morley and 1 anonymous reviewer
Tektites, a naturally occurring glass produced by major cosmic impacts and ejected at long distances, are known from five impacts worldwide . The presence of this impact-generated glass, which can be dated in the same way as a volcanic rock, has been used to date archaeological sites in several regions of the world. This paper by Marwick and colleagues  reviews and adds new data on the use and misuse of this specific material as a chronological marker in Australia, East and Southeast Asia, where an impact dated to 0.78 Ma created and widely distributed tektites. This material, found in archaeological excavations in China, Laos, Thaïland, Australia, Borneo, and Vietnam, has been used to date layers containing lithic artifacts, sometimes creating a strong debate about the antiquity of the occupation and lithic production in certain regions.
The review of existing data shows that geomorphological data and stratigraphic integrity can be questioned at many sites that have yielded tektites. The new data provided by this paper for five archaeological sites located in Vietnam confirm that many deposits containing tektites are indeed lag deposits and that these artifacts, thus in secondary position, cannot be considered to date the layer. This study also emphasizes the general lack of other dating methods that would allow comparison with the tektite age. In the Vietnamese archaeological sites presented here, discrepancies between methods, and the presence of historical artifacts, confirm that the layers do not share similar age with the cosmic impact that created the tektites.
Based on this review and these new results, and following previous propositions , Marwick and colleagues conclude that, if tektites can be used as chronological markers, one has to prove that they are in situ. They propose that geomorphological assessment of the archaeological layer as primary deposit must first be attained, in addition to several parameters of the tektites themselves (shape, size distribution, chemical composition). Large error can be made by using only tektites to date an archaeological layer, and this material should not be used solely due to risks of high overestimation of the age of the archaeological production.
 Rochette, P., Beck, P., Bizzarro, M., Braucher, R., Cornec, J., Debaille, V., Devouard, B., Gattacceca, J., Jourdan, F., Moustard, F., Moynier, F., Nomade, S., Reynard, B. (2021). Impact glasses from Belize represent tektites from the Pleistocene Pantasma impact crater in Nicaragua. Communications Earth & Environment, 2(1), 1–8, https://doi.org/10.1038/s43247-021-00155-1
 Marwick, B., Son, P. T., Brewer, R., Wang, L.-Y. (2022). Tektite geoarchaeology in mainland Southeast Asia. SocArXiv, 93fpa, ver. 6 peer-reviewed and recommended by PCI Archaeology, https://doi.org/10.31235/osf.io/93fpa.
 Tada, T., Tada, R., Chansom, P., Songtham, W., Carling, P. A., Tajika, E. (2020). In Situ Occurrence of Muong Nong-Type Australasian Tektite Fragments from the Quaternary Deposits near Huai Om, Northeastern Thailand. Progress in Earth and Planetary Science 7(1), 1–15, https://doi.org/10.1186/s40645-020-00378-4
|Tektite geoarchaeology in mainland Southeast Asia||Ben Marwick, Son Thanh Pham, Rachel Brewer, Li-Ying Wang||<p>Tektites formed by an extraterrestrial impact event in Southeast Asia at 0.78 Ma have been found in geological contexts and archaeological sites throughout Australia, East and Southeast Asia. At some archaeological sites, especially in Bose Bas...||Asia, Geoarchaeology||Alain Queffelec||2021-08-14 18:04:18||View|
01 Dec 2021
A closer look at an eroded dune landscape: first functional insights into the Federmessergruppen site of Lommel-MaatheideSonja Tomasso, Dries Cnuts, Justin Coppe, Marijn Van Gils, Ferdi Geerts, Marc De Bie, Veerle Rots https://doi.org/10.31219/osf.io/pf3sm
Potential of a large-scale functional analysis to reconstructing past human activities at the Final Palaeolithic site of Lommel-MaatheideRecommended by Marta Arzarello and Alice Leplongeon based on reviews by Gabriele Luigi Francesco Berruti and Ana Abrunhosa
The paper “A closer look at an eroded dune landscape: first functional insights into the Federmessergruppen site of Lommel-Maatheide”  focuses on the final Palaeolithic (Federmesser) site of Lommel-Maatheide. Federmesser sites from northern Belgium such as Lommel-Maatheide, Meer and Rekem, show evidence for dense human occupation of specific areas located on top of Tardiglacial dunes nearby water bodies . Preserved spatial distribution of finds at the sites suggest different activity areas and the presence of habitat structures . However, because of the low organic preservation at the sites, functional analyses of lithic assemblages have the potential to significantly contribute to the spatial organisation of activities at these sites. This study by Tomasso et al. , represents an excellent example of a large-scale integrated approach to the study of lithic industries. The article undoubtedly demonstrates the potential of the proposed methodology and the reliability of the results obtained.
The article explores two different aspects (linked and excellently interconnected here): the possibility to apply use wear, residue and fracture analyses, on lithic assemblages affected by taphonomical alterations and to study lithic assemblages from dune landscapes.
The study allows to answer differentiated questions: what is the influence of taphonomical alterations on use wear analysis? How do excavation methods impact the formation of use wear and the preservation of residues? Can we recognize distinct domestic activities? The article also provides an interesting hypothesis about hunting activities and propulsion methods.
The applied methodology is effectively interdisciplinary and innovative. It demonstrates how a truly integrated and articulated approach can represent the turning point for going beyond a mainly descriptive dimension to move towards a real understanding of the sites.
Studies dedicated to the analysis of the propulsion mode are not very frequent, but they are surely very important to better understand human behaviour . Here, the methodology developed for the evaluation of the propulsion mode represent an important starting point for the definition of a new approach. Morphological and morphometrical analysis are integrated to the evaluation of the mechanical stress, to fracture delineations and to the hafting system (the latter defined on experimental basis).
This article therefore underlines the potential of combining different approaches to functional analysis associated with a ‘tailored’ reference collection and applying them to a high number of artefacts for reconstructing past human activities involving materials that are otherwise not preserved in these contexts.
 Tomasso, S., Cnuts, D., Coppe, J., Geerts, F., Gils, M.V., Bie, M.D., Rots, V. (2021). A closer look at an eroded dune landscape: first functional insights into the Federmessergruppen site of Lommel-Maatheide. https://doi.org/10.31219/osf.io/pf3sm, ver 3 peer-reviewed and recommended by PCI Archaeology.
 De Bie, M., Van Gils, M. (2006). Les habitats des groupes à Federmesser (aziliens) dans le Nord de la Belgique. Bulletin de la Société préhistorique française, 103, 781–790.
 Coppe, J., Lepers, C., Clarenne, V., Delaunois, E., Pirlot, M. and Rots V. (2019). Ballistic Study Tackles Kinetic Energy Values of Palaeolithic Weaponry. Archaeometry, (61)4, 933-956. https://doi.org/10.1111/arcm.12452
|A closer look at an eroded dune landscape: first functional insights into the Federmessergruppen site of Lommel-Maatheide||Sonja Tomasso, Dries Cnuts, Justin Coppe, Marijn Van Gils, Ferdi Geerts, Marc De Bie, Veerle Rots||<p>The vast Federmessergruppen site of Lommel-Maatheide, which is located in the Campine region (Northern Belgium), revealed the presence of numerous Final Palaeolithic concentrations situated on a large Late Glacial sand ridge on the northern edg...||Environmental archaeology, Landscape archaeology, Lithic technology, Traceology, Upper Palaeolithic||Marta Arzarello||2021-09-14 17:04:38||View|
15 Aug 2021
Ran-thok and Ling-chhom: indigenous grinding stones of Shertukpen tribes of Arunachal Pradesh, IndiaNorbu Jamchu Thongdok, Gibji Nimasow & Oyi Dai Nimasow https://doi.org/10.5281/zenodo.5118675
An insight into traditional method of food production in IndiaRecommended by Otis Crandell based on reviews by Antony Borel, Atefeh Shekofteh, Andrea Squitieri, Birgül Ögüt, Atefe Shekofte and 1 anonymous reviewer
This paper  covers an interesting topic in that it presents through ethnography an insight into a traditional method of food production which is gradually declining in use. In addition to preserving traditional knowledge, the ethnographic study of grinding stones has the potential for showing how similar tools may have been used by people in the past, particularly from the same geographic region.
 Thongdok Norbu J., Nimasow Gibji, Nimasow Oyi D. (2021) Ran-thok and Ling-chhom: indigenous grinding stones of Shertukpen tribes of Arunachal Pradesh, India. Zenodo, 5118675, ver. 4 peer-reviewed and recommended by PCI Archaeo. doi: https://doi.org/10.5281/zenodo.5118675
|Ran-thok and Ling-chhom: indigenous grinding stones of Shertukpen tribes of Arunachal Pradesh, India||Norbu Jamchu Thongdok, Gibji Nimasow & Oyi Dai Nimasow||<p style="text-align: justify;">The Shertukpens are an Indigenous tribal group inhabiting the western and southern parts of Arunachal Pradesh, Northeast India. They are accomplished carvers of carving wood and stone. The paper aims to document the...||Antiquity, Asia, Environmental archaeology, Lithic technology, Peopling, Raw materials||Otis Crandell||2021-02-10 10:26:12||View|
24 Jun 2021
The strength of parthood ties. Modelling spatial units and fragmented objects with the TSAR method – Topological Study of Archaeological RefittingSébastien Plutniak https://osf.io/q2e69
A practical computational approach to stratigraphic analysis using conjoinable material culture.Recommended by Hector A. Orengo based on reviews by Robert Bischoff, Matthew Peeples and 1 anonymous reviewer
The paper by Plutniak  presents a new method that uses refitting to help interpret stratigraphy using the topological distribution of conjoinable material culture. This new method opens up new avenues to the archaeological use of network analysis but also to assess the integrity of interpreted excavation layers. Beyond its evident applicability to standard excavation practice, the paper presents a series of characteristics that exemplify archaeological publication best practices and, as someone more versed in computational than in refitting studies I would like to comment upon.
It was no easy task to find adequate reviewers for this paper as it combines techniques and expertise that are not commonly found together in individual researchers. However, Plutniak, with help from three reviewers, particularly M. Peeples, a leading figure in archaeological applications of network science, makes a considerable effort to be accessible to non-specialist archaeologists. The core Topological Study of Archaeological Refitting (TSAR) method is freely accessible as the R package archeofrag, which is available at the Comprehensive R Archive Network (https://CRAN.R-project.org/package=archeofrag) that can be applied without the need to understand all its mathematical, graph theory and coding aspects. Beside these, an online interface including test data has been provided (https://analytics.huma-num.fr/Sebastien.Plutniak/archeofrag/), which aims to ease access to the method to those archaeologists inexperienced with R. Finally, supplementary material showing how to use the package and evaluating its potential through excellent examples is provided as both pdf and Rmw (Sweave) files. This is an important companion for the paper as it allows a better understanding of the methods presented in the paper and its practical application.
The author shows particular care in testing the potential and capabilities of the method. For example, a function is provided “frag.observer.failure” to test the robustness of the edge count method against the TSAR method, which is able to prove that TSAR can deal well with incomplete information. As a further step in this direction both simulated and real field-acquired data are used to test the method which further proves that archeofrag is not only able to quantitatively assess the mixture of excavated layers but to propose meaningful alternatives, which no doubt will add an increased methodological consistency and thoroughness to previous quantitative approaches to material refitting work, even when dealing with very complex stratigraphies.
All in all, this paper makes an important contribution to core archaeological practice through the use of innovative, reproducible and accessible computational methods. I fully endorse it for the conscious and solid methods it presents but also for its adherence to open publication practices. I hope that it can become of standard use in the reconstruction of excavated stratigraphical layers through conjoinable material culture.
 Plutniak, S. 2021. The Strength of Parthood Ties. Modelling Spatial Units and Fragmented Objects with the TSAR Method – Topological Study of Archaeological Refitting. OSF Preprints, q2e69, ver. 3 Peer-reviewed and recommended by PCI Archaeology. https://doi.org/10.31219/osf.io/q2e69.
|The strength of parthood ties. Modelling spatial units and fragmented objects with the TSAR method – Topological Study of Archaeological Refitting||Sébastien Plutniak||<p>Refitting and conjoinable pieces have long been used in archaeology to assess the consistency of discrete spatial units, such as layers, and to evaluate disturbance and post-depositional processes. The majority of current methods, despite their...||Computational archaeology, Taphonomy||Hector A. Orengo||2021-01-14 18:31:01||View|
28 Feb 2021
A database of lapidary artifacts in the Caribbean for the Ceramic AgeAlain Queffelec, Pierrick Fouéré, Jean-Baptiste Caverne https://osf.io/preprints/socarxiv/7dq3b/
Open data on beads, pendants, blanks from the Ceramic Age CaribbeanRecommended by Ben Marwick based on reviews by Clarissa Belardelli, Stefano Costa, Robert Bischoff and Li-Ying Wang
The paper 'A database of lapidary artifacts in the Caribbean for the Ceramic Age' by Queffelec et al.  presents a description of a dataset of nearly 5000 lapidary artefacts from over 100 sites. The data are dominated by beads and pendants, which are mostly made from Diorite, Turquoise, Carnelian, Amethyst, and Serpentine. The raw material data is especially valuable as many of these are not locally available on the island. This holds great potential for exchange network analysis. The data may be especially useful for investigating one of the fundamental questions of this region: whether the Cedrosan and Huecan are separate, little related developments, with different origins, or variants or a single tradition .
In addition to metric and technological details about the artefacts, the data include a variety of locational details, including coordinates, distance to coast, and altitude. This enables many opportunities for future spatial analysis and geostatistical modelling to understand human behaviours relating to ornament production, use, and discard. I recommend the authors make a minor revision to Table 1 (spatial coverage of the dataset) to make the column with the citations conform to the same citation style used in the rest of the text.
I warmly commend the authors for making transparency and reproducibility a priority when preparing their manuscript. Their use of the R Markdown format for writing reproducible, dynamic documents  is highly impressive. This is an excellent example for others in the international archaeological science community to follow. The paper is especially useful for researchers who are new to R and R Markdown because of the elegant and accessible way the authors document their research here.
 Queffelec, A., Fouéré, P. and Caverne, J.-B. 2021. A database of lapidary artifacts in the Caribbean for the Ceramic Age. SocArXiv, 7dq3b, ver. 4 Peer-reviewed and recommended by PCI Archaeology. https://doi.org/10.31235/osf.io/7dq3b
 Reed, J. A. and Petersen, J. B. 2001. A comparison of Huecan and Cedrosan Saladoid ceramics at the Trants site, Montserrat. In Proceedings of the XVIIIth International Congress for Caribbean Archaeology (pp. 253-267).
 Marwick, B. 2017. Computational Reproducibility in Archaeological Research: Basic Principles and a Case Study of Their Implementation. Journal of Archaeological Method and Theory 24, 424–450. https://doi.org/10.1007/s10816-015-9272-9
|A database of lapidary artifacts in the Caribbean for the Ceramic Age||Alain Queffelec, Pierrick Fouéré, Jean-Baptiste Caverne||<p>Lapidary artifacts show an impressive abundance and diversity during the Ceramic period in the Caribbean islands, especially at the beginning of this period. Most of the raw materials used in this production do not exist naturally on the island...||Neolithic, North America, Raw materials, South America, Spatial analysis, Symbolic behaviours||Ben Marwick||2020-11-13 23:52:34||View|
08 Feb 2021
A 115,000-year-old expedient bone technology at Lingjing, Henan, ChinaLuc Doyon, Zhanyang Li, Hua Wang, Lila Geis, Francesco d’Errico https://doi.org/10.31235/osf.io/68xpz
A step towards the challenging recognition of expedient bone toolsRecommended by Camille Daujeard based on reviews by Delphine Vettese, Jarod Hutson and 1 anonymous reviewer
This article by L. Doyon et al.  represents an important step to the recognition of bone expedient tools within archaeological faunal assemblages, and therefore deserves publication.
In this work, the authors compare bone flakes and splinters experimentally obtained by percussion (hammerstone and anvil technique) with fossil ones coming from the Palaeolithic site of Lingjing in China. Their aim is to find some particularities to help distinguish the fossil bone fragments which were intentionally shaped, from others that result notably from marrow extraction. The presence of numerous (>6) contiguous flake scars and of a continuous size gradient between the lithics and the bone blanks used, appear to be two valuable criteria for identifying 56 bone elements of Lingjing as expedient bone tools. The latter are present alongside other bone tools used as retouchers .
Another important point underlined by this study is the co-occurrence of impact and flake scars among the experimentally broken specimens (~90%), while this association is seldom observed on archaeological ones. Thus, according to the authors, a low percentage of that co-occurrence could be also considered as a good indicator of the presence of intentionally shaped bone blanks.
About the function of these expedient bone tools, the authors hypothesize that they were used for in situ butchering activities. However, future experimental investigations on this question of the function of these tools are expected, including an experimental use wear program.
Finally, highlighting the presence of such a bone industry is of importance for a better understanding of the adaptive capacities and cultural practices of the past hominins. This work therefore invites all taphonomists to pay more attention to flake removal scars on bone elements, keeping in mind the possible existence of that type of bone tools. In fact, being able to distinguish between bone fragments due to marrow recovery and bone tools is still a persistent and important issue for all of us, but one that deserves great caution.
 Doyon, L., Li, Z., Wang, H., Geis, L. and d'Errico, F. 2021. A 115,000-year-old expedient bone technology at Lingjing, Henan, China. Socarxiv, 68xpz, ver. 4 peer-reviewed and recommended by PCI Archaeology. https://doi.org/10.31235/osf.io/68xpz
 Doyon, L., Li, Z., Li, H., and d’Errico, F. 2018. Discovery of circa 115,000-year-old bone retouchers at Lingjing, Henan, China. Plos one, 13(3), https://doi.org/10.1371/journal.pone.0194318.
|A 115,000-year-old expedient bone technology at Lingjing, Henan, China||Luc Doyon, Zhanyang Li, Hua Wang, Lila Geis, Francesco d’Errico||<p>Activities attested since at least 2.6 Myr, such as stone knapping, marrow extraction, and woodworking may have allowed early hominins to recognize the technological potential of discarded skeletal remains and equipped them with a transferable ...||Asia, Middle Palaeolithic, Osseous industry, Taphonomy, Zooarchaeology||Camille Daujeard||2020-11-01 11:09:13||View|
20 Dec 2020
For our world without sound. The opportunistic debitage in the Italian context: a methodological evaluation of the lithic assemblages of Pirro Nord, Cà Belvedere di Montepoggiolo, Ciota Ciara cave and Riparo Tagliente.Marco Carpentieri, Marta Arzarello https://doi.org/10.31219/osf.io/2ptjb
Investigating the opportunistic debitage – an experimental approachRecommended by Alice Leplongeon based on reviews by David Hérisson and 1 anonymous reviewer
The paper “For our world without sound. The opportunistic debitage in the Italian context: a methodological evaluation of the lithic assemblages of Pirro Nord, Cà Belvedere di Montepoggiolo, Ciota Ciara cave and Riparo Tagliente”  submitted by M. Carpentieri and M. Arzarello is a welcome addition to a growing number of studies focusing on flaking methods showing little to no core preparation, e.g., [2–4]. These flaking methods are often overlooked or seen as ‘simple’, which, in a Middle Palaeolithic context, sometimes leads to a dichotomy of Levallois vs. non-Levallois debitage (e.g., see discussion in ).
The authors address this topic by first providing a definition for ‘opportunistic debitage’, derived from the definition of the ‘Alternating Surfaces Debitage System’ (SSDA, ). At the core of the definition is the adaptation to the characteristics (e.g., natural convexities and quality) of the raw material. This is one main challenge in studying this type of debitage in a consistent way, as the opportunistic debitage leads to a wide range of core and flake morphologies, which have sometimes been interpreted as resulting from different technical behaviours, but which the authors argue are part of a same ‘methodological substratum’ .
This article aims to further characterise the ‘opportunistic debitage’. The study relies on four archaeological assemblages from Italy, ranging from the Lower to the Upper Pleistocene, in which the opportunistic debitage has been recognised. Based on the characteristics associated with the occurrence of the opportunistic debitage in these assemblages, an experimental replication of the opportunistic debitage using the same raw materials found at these sites was conducted, with the aim to gain new insights into the method. Results show that experimental flakes and cores are comparable to the ones identified as resulting from the opportunistic debitage in the archaeological assemblage, and further highlight the high versatility of the opportunistic method.
One outcome of the experimental replication is that a higher flake productivity is noted in the opportunistic centripetal debitage, along with the occurrence of 'predetermined-like' products (such as déjeté points). This brings the authors to formulate the hypothesis that the opportunistic debitage may have had a role in the process that will eventually lead to the development of Levallois and Discoid technologies. How this articulates with for example current discussions on the origins of Levallois technologies (e.g., [6–8]) is an interesting research avenue. This study also touches upon the question of how the implementation of one knapping method may be influenced by the broader technological knowledge of the knapper(s) (e.g., in a context where Levallois methods were common vs a context where they were not). It makes the case for a renewed attention in lithic studies for flaking methods usually considered as less behaviourally significant.
 Carpentieri M, Arzarello M. 2020. For our world without sound. The opportunistic debitage in the Italian context: a methodological evaluation of the lithic assemblages of Pirro Nord, Cà Belvedere di Montepoggiolo, Ciota Ciara cave and Riparo Tagliente. OSF Preprints, doi:10.31219/osf.io/2ptjb
 Bourguignon L, Delagnes A, Meignen L. 2005. Systèmes de production lithique, gestion des outillages et territoires au Paléolithique moyen : où se trouve la complexité ? Editions APDCA, Antibes, pp. 75–86. Available: https://halshs.archives-ouvertes.fr/halshs-00447352
 Arzarello M, De Weyer L, Peretto C. 2016. The first European peopling and the Italian case: Peculiarities and “opportunism.” Quaternary International, 393: 41–50. doi:10.1016/j.quaint.2015.11.005
 Vaquero M, Romagnoli F. 2018. Searching for Lazy People: the Significance of Expedient Behavior in the Interpretation of Paleolithic Assemblages. J Archaeol Method Theory, 25: 334–367. doi:10.1007/s10816-017-9339-x
 Forestier H. 1993. Le Clactonien : mise en application d’une nouvelle méthode de débitage s’inscrivant dans la variabilité des systèmes de production lithique du Paléolithique ancien. Paléo, 5: 53–82. doi:10.3406/pal.1993.1104
 Moncel M-H, Ashton N, Arzarello M, Fontana F, Lamotte A, Scott B, et al. 2020. Early Levallois core technology between Marine Isotope Stage 12 and 9 in Western Europe. Journal of Human Evolution, 139: 102735. doi:10.1016/j.jhevol.2019.102735
 White M, Ashton N, Scott B. 2010. The emergence, diversity and significance of the Mode 3 (prepared core) technologies. Elsevier. In: Ashton N, Lewis SG, Stringer CB, editors. The ancient human occupation of Britain. Elsevier. Amsterdam, pp. 53–66.
 White M, Ashton N. 2003. Lower Palaeolithic Core Technology and the Origins of the Levallois Method in North‐Western Europe. Current Anthropology, 44: 598–609. doi:10.1086/377653
|For our world without sound. The opportunistic debitage in the Italian context: a methodological evaluation of the lithic assemblages of Pirro Nord, Cà Belvedere di Montepoggiolo, Ciota Ciara cave and Riparo Tagliente.||Marco Carpentieri, Marta Arzarello||<p>The opportunistic debitage, originally adapted from Forestier’s S.S.D.A. definition, is characterized by a strong adaptability to local raw material morphology and its physical characteristics and it is oriented towards flake production. Its mo...||Ancient Palaeolithic, Lithic technology, Middle Palaeolithic||Alice Leplongeon||2020-07-23 14:26:04||View|
17 Dec 2020
Experimentation preceding innovation in a MIS5 Pre-Still Bay layer from Diepkloof Rock Shelter (South Africa): emerging technologies and symbolsGuillaume Porraz, John E. Parkington, Patrick Schmidt, Gérald Bereiziat, Jean-Philip Brugal, Laure Dayet, Marina Igreja, Christopher E. Miller, Viola C. Schmid, Chantal Tribolo, Aurore Val, Christine Verna, Pierre-Jean Texier https://doi.org/10.32942/osf.io/ch53r
Experimentation as a driving force for innovation in the Pre-Still Bay from Southern AfricaRecommended by Anne Delagnes based on reviews by Francesco d'Errico, Enza Elena Spinapolice and Kathryn Ranhorn
The article submitted by Guillaume Porraz et al.  shed light on the evolutionary changes recorded during the Pre-Still Bay Lynn stratigraphic unit (SU) from Diepkloof (Southern Africa). It promotes a multi-proxy and integrative approach based on a set of innovative behaviors, such as the engraving of geometric forms, silcrete heat- treatment, the use of adhesive, bladelet and bifacial tools production. This approach is not so common in Middle Stone Age (MSA) studies and makes a lot of sense for discussing the mechanisms that have fostered later innovations during the Still Bay and Howiesons Poort periods. The various innovations that emerge synchronously in this layer contrast with earlier innovations which appear as isolated phenomena in the MSA archaeological record. The strong inventiveness documented in Lynn SU is reported to a phase of experimentation for testing new ideas, new behaviors that would have played a crucial role for the emergence of the Still Bay in a context of socio-economic transformation.
The data presented in this article broadens the scope of two previous articles [2-3] based on a more representative record, collected on an area of 3,5 m² opposed to 2 m² previously, and on the first presentation and description of an engraved bone with a rhomboid pattern. Macro- and microscopic analyses together with the analysis of the distribution of the engraved lines argue convincingly for an intentional engraving. This article constitutes a key contribution to the question of HOW emerged modern cultures in Southern Africa, while calling for further research related to sites’ function, environment and local resources to address the ever-debated question of WHY the MSA groups from Southern Africa developed such unprecedented inventiveness. It makes no doubt that this article deserves recommendation by PCI Archaeology.
 Porraz, G., Schmidt, P., Bereiziat, G., Brugal, J.Ph., Dayet, L., Igreja, M., Miller, C.E., Viola, C., Tribolo, C., Val, A., Verna, C., Texier, P.J. 2020. Experimentation preceding innovation in a MIS5 Pre-Still Bay layer from Diepkloof Rock Shelter (South Africa): emerging technologies and symbols. 10.32942/osf.io/ch53r
 Porraz, G., Texier, P.J., Archer, W., Piboule, M., Rigaud, J.P, Tribolo, C. 2013. Technological successions in the Middle Stone Age sequence of Diepkloof Rock Shelter, Western Cape, South Africa. Journal of Archaeological Science 40, 3376–3400. 10.1016/j.jas.2013.02.012
 Porraz, G., Texier, J.P. Miller, C.E., 2014. Le complexe bifacial Still Bay et ses modalités d’émergence à l’abri Diepkloof (Middle Stone Age, Afrique du Sud). In: XXVIIème Congrès Préhistorique de France, Transitions, Ruptures et Continuité en Préhistoire. Mémoires de la Société Préhistorique Française, 155–175.
|Experimentation preceding innovation in a MIS5 Pre-Still Bay layer from Diepkloof Rock Shelter (South Africa): emerging technologies and symbols||Guillaume Porraz, John E. Parkington, Patrick Schmidt, Gérald Bereiziat, Jean-Philip Brugal, Laure Dayet, Marina Igreja, Christopher E. Miller, Viola C. Schmid, Chantal Tribolo, Aurore Val, Christine Verna, Pierre-Jean Texier||<p>In South Africa, key technologies and symbolic behaviors develop as early as the later Middle Stone Age in MIS5. These innovations arise independently in various places, contexts and forms, until their full expression during the Still Bay and t...||Africa, Lithic technology, Middle Palaeolithic, Symbolic behaviours||Anne Delagnes||2020-08-04 09:13:27||View|