Monday, July 2, 2018

Crucial new data on the origin of the Dolmens of Antequera, a World Heritage Site


The ATLAS research group from the University of Seville has just published a study of a high resolution analysis of one of the most important sections of the Peña de los Enamorados, a natural formation included in the Antequera Dolmens Site, declared a World Heritage Site by the United Nations Educational, Scientific and Cultural Organisation (UNESCO).
Specifically, the researchers have studied the site known as the "Abrigo de Matacabras", which contains cave paintings in the schematic style. This small cave has a first-class visual and symbolic relationship with the Menga dolmen, establishing landscape relationships that are possibly unique in European prehistory.
The Abrigo de Matacabras is set deep in the northern sector of the Peña de los Enamorados, which, due to its shape, is reminiscent of a sleeping woman.
For this investigation, a latest-generation multidisciplinary archaeological method was used, which included a photogrammetric reconstruction of the entire cave, analysis of its graphic motifs by means of digital image processing and colorimetry, uranium-thorium dating of the rock layers that carried the motifs, archaeometric analysis of the ceramics associated with the cave and the neighbouring site of Piedras Blancas I. situated at the foot of the Peña, by means of neutron activation analysis and X-ray diffraction, as well as a complete stylistic analysis of the motifs.
The results obtained indicate the Neolithic chronology of the cave (probably, at least, at the beginning of the 4th millennium BC) and its importance as a place of reference for the Neolithic (and possibly even older) population of the region, which would explain the anomalous orientation of the Menga dolmen. "In addition, the data obtained allows us, for the first time, to consider the Abrigo de Matacabras from the point of view of its future conservation, and diagnosis anything that might threaten or damage the motifs", says Leonardo García Sanjuán, Professor of Prehistory at the University of Seville.

Oldest evidence of horse veterinary care discovered in Mongolia


A team of scholars, led by William Taylor of the Max Planck Institute for the Science of Human History, analyzed horse remains from an ancient Mongolian pastoral culture known as the Deer Stone-Khirigsuur Culture (ca. 1300-700 BC). Deer stones, with their beautiful deer carvings, and their accompanying stone mounds (khirigsuurs) are famous for the impressive horse burials that are found alongside them in the dozens, hundreds, or even thousands. Through careful study of skeletal remains from these burials, published in Proceedings of the National Academy of Sciences and funded in part by a grant from the National Geographic Society, Taylor and colleagues found that Deer Stone-Khirigsuur people began using veterinary dental procedures to remove baby teeth that would have caused young horses pain or difficulty with feeding - the world's oldest known evidence for veterinary dental care.

Previous research has shown that these early herders were the first in eastern Eurasia to rely heavily on horses as livestock for food products, and may have been among the first to use horses for mounted riding. Drawing on insights from his Mongolian colleagues, Jamsranjav Bayarsaikhan and Tumurbaatar Tuvshinjargal of the National Museum of Mongolia, Taylor argues that the development of horseback riding and a horse-based pastoral economy was a key driver for the invention of equine veterinary care. "We may think of veterinary care as kind of a Western science," he says, "but herders in Mongolia today practice relatively sophisticated procedures using very simple equipment. This results of our study show that a careful understanding of horse anatomy and a tradition of care was first developed, not in the sedentary civilizations of China or the Mediterranean, but centuries earlier, among the nomadic people whose livelihood depended on the well-being of their horses."

Additionally, Taylor and his team discovered that changes in horse dentistry accompanied major developments in horse control technology, including the incorporation of bronze and metal mouthpieces into bridles used for riding. This equipment, which spread into eastern Eurasia during the early first millennium BC, gave riders more nuanced control over horses, and allowed them to be used for new purposes - especially warfare. However, using metal to control horses also introduced new oral problems, including painful interactions with a vestigial tooth that develops in some animals, known as a "wolf tooth." Taylor and his team discovered that, as herders began to use metal bits, they also developed a method for extracting this problematic tooth - similar to the way most veterinary dentists would remove it today.
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In doing so, these early riders could control their horses in high-stress situations using a metal bit, without accompanying behavioral or health complications, which may have had major implications for the ancient world. Nicole Boivin, Director of the Department of Archaeology at the Max Planck Institute for the Science of Human History, explains, "In many ways, the movements of horses and horse-mounted peoples during the first millennium BCE reshaped the cultural and biological landscapes of Eurasia. Dr. Taylor's study shows that veterinary dentistry - developed by Inner Asian herders - may have been a key factor that helped to stimulate the spread of people, ideas, and organisms between East and West."

Neandertals practiced close-range hunting 120,000 years ago



Caption

Front and back view of a hunting lesion in the pelvis of an extinct fallow deer killed by Neandertals 120,000 years ago on a lakeshore close to current-day Halle in Germany.

Credit

© Eduard Pop, MONREPOS Archaeological Research Center and Museum for Human Behavioral Evolution, Römisch-Germanisches Zentralmuseum, Leibniz Research Institute for Archaeology (RGZM)

An international team of scientists reports the oldest unambiguous hunting lesions documented in the history of humankind. The lesions were found on skeletons of two large-sized extinct fallow deer killed by Neandertals about 120,000 years ago around the shores of a small lake (Neumark-Nord 1) near present-day Halle in the eastern part of Germany. The study was led by Professor Sabine Gaudzinski-Windheuser of the Department of Ancient Studies at Johannes Gutenberg University Mainz (JGU) and was now published in the journal Nature Ecology and Evolution.

The study constitutes a significant step forward in our knowledge of the Neandertal niche. It demonstrates how Neandertals obtained their prey, first and foremost in terms of their much debated hunting equipment while also shedding light on their hunting skills.

With an innovative experimental ballistic setup including state-of-the-art motion-sensor technology, the researchers were able to reproduce the specific form of one of the lesions. The results prove the use of a wooden thrusting spear that was impacted with low velocity. This suggests that Neandertals approached animals very closely and thrusted rather than threw their spears at the animals, most likely from an underhand thrusting angle. Such a confrontational way of hunting required careful planning and concealment as well as close cooperation between individual hunters.

The lake where the hunts took place was surrounded by a close canopy forest, a type of environment deemed particularly challenging for hunter-gatherers, even modern human ones. Interestingly, the excavations in the Neumark-Nord area have yielded tens of thousands of bones of large mammals, including red and fallow deer, horses, and bovids, as well as thousands of lithic artefacts from this uniquely rich Last Interglacial lake landscape, attesting to the success of Neandertal survival in forested environments.

"Although hominins most likely started hunting with weapons more than 500,000 years ago, actual evidence on how wooden spear-like objects like those found at Clacton-on-Sea in England as well as in Schöningen and Lehringen in German were used was absent prior to the identification of the Neumark-Nord hunting lesions," stated Gaudzinski-Windheuser. "As far as spear use is concerned, we now finally have the crime scene fitting to the proverbial smoking gun."

Major Exhibition at The Met to Focus on Medieval Armenia


Exhibition Dates:September 22, 2018–January 13, 2019
Exhibition Location:
The Met Fifth Avenue, First Floor, Gallery 199
Press Preview:Thursday, September 20, 10 am–noon
Opening September 22 at The Metropolitan Museum of Art, Armenia! explores the arts and culture of the Armenians from their conversion to Christianity in the early fourth century through their leading role on international trade routes in the 17th century. The exhibition emphasizes how Armenians developed a distinctive national identity in their homeland at the base of Mt. Ararat (widely accepted as the resting place of Noah's Ark) and how they maintained and transformed their traditions as their communities expanded across the globe.

More than 140 opulent gilded reliquaries, richly illuminated manuscripts, rare textiles, liturgical furnishings made of precious materials, khachkars (cross stones), church models, and printed books demonstrate Armenia's distinctive imagery in their homeland and other major Armenian sites, from the Kingdom of Cilicia on the Mediterranean to New Julfa, in Safavid Persia. Select comparative works display Armenian interaction with other cultures.
 
Major Armenian repositories of their culture provide almost all the works in the exhibition. Most are on view in the United States for the first time; many have not traveled for centuries.
 
The exhibition is made possible by The Hagop Kevorkian Fund. 
 
Additional support is provided by the Carnegie Corporation of New York, The Giorgi Family Foundation, the Karagheusian Foundation, The Nazar and Artemis Nazarian Family, the Ruddock Foundation for the Arts, The Strauch Kulhanjian Family and The Paros Foundation, Aso O. Tavitian, and the National Endowment for the Arts. 
 
Armenia! focuses on major Armenian centers of production from their homeland west and east, with emphasis on images of Armenians, from self-portraits to depictions of male and female rulers, donors, theologians, and historians. Special attention is given to works by major artists such as T'oros Roslin, Sargis Pidzak, Toros Taronatsi, and Hakob of Julfa working in the Armenian homeland, the Kingdom of Cilicia, and New Julfa.
 
More than half of the works on display are on loan from The Republic of Armenia with the support of The Ministry of Culture. Imposing liturgical works are coming from the Mother See of Holy Etchmiadzin, the primary site of the Armenian Church. In Yerevan, the "Matenadaran" Mesrop Masthots` Institute - Museum of Ancient Manuscripts is lending exceptional manuscripts, and the History Museum of Armenia is lending monumental church sculptures. The Holy See of Cilicia in Lebanon, the Armenian Patriarchate of Jerusalem, and the Armenian Mekhitarist Congregation in Venice are the other major Armenian religious communities lending exceptional works. Armenian collections lending select works are the Calouste Gulbenkian Museum in Portugal and in America, the Diocese of the Armenian Church (Eastern) (New York); the Armenian Museum of America (Boston); and the Alex and Marie Manoogian Museum (Southfield, Michigan). Additional works are coming from The Met and other American and European institutions.
 
Photographs of Armenian architecture and landscapes by noted Armenian-Canadian photographer Hrair Hawk Khatcherian and his assistant Lilit Khachatryan will provide context for the works in the exhibition, in the catalogue, and on the exhibition page of the website.
 
Credits
 
The exhibition was organized by Helen C. Evans, the Mary and Michael Jaharis Curator of Byzantine Art, with the support of C. Griffith Mann, the Michel David-Weill Curator in Charge, Department of Medieval Art and The Cloisters, assisted by Constance Alchermes, Research Assistant.
 
Exhibition design is by Michael Langley, Exhibition Design Manager; graphics are by Chelsea Amato and Morton Lebigre, Graphic Designers; and lighting is by Clint Ross Coller and Richard Lichte, Lighting Design Managers.
 
Programs and Catalogue
 
Education programs will include an international symposium, lectures, concerts, a website, a blog and group tours of the exhibition.
 
The symposium is made possible by The Armenian Center at Columbia University.
 
Armenia! is accompanied by a lavishly illustrated catalogue suitable for the general public and specialists alike. Published by The Metropolitan Museum of Art and distributed by Yale University Press, the book will be available in The Met Store ($65, hardcover). 
 
The catalogue is made possible by the Michel David-Weill Fund, The Andrew W. Mellon Foundation, the Dolores Zohrab Liebmann Fund, the Ruben Vardanyan and Veronika Zonabend Family Foundation, Joanne A. Peterson, The Tianaderrah Foundation, The Armenian Center at Columbia University, Elizabeth and Jean-Marie Eveillard, and Souran G. and Carol R.K. Ouzounian.
 
The exhibition will be featured on The Met website as well as on Facebook, Instagram, and Twitter via the hashtag #Armenia.

Monday, June 25, 2018

Cranium of a four-million-year-old hominin shows similarities to that of modern humans



A cranium of a four-million-year-old fossil, that, in 1995 was described as the oldest evidence of human evolution in South Africa, has shown similarities to that of our own, when scanned through high resolution imaging systems.
The cranium of the extinct Australopithecus genus was found in the lower-lying deposits of the Jacovec Cavern in the Sterkfontein Caves, about 40km North-West of Johannesburg in South Africa. Dr Amelie Beaudet from the School of Geography, Archaeology and Environmental Studies of the University of the Witwatersrand and her colleagues from the Sterkfontein team scanned the cranium at the Evolutionary Studies Institute, based at the University of the Witwatersrand, in 2016 and applied advanced imaging techniques in "virtual paleontology" to further explore the anatomy of the cranium. Their research was funded by the Centre of Excellence in Palaeosciences, the Claude Leon Foundation and the French Institute of South Africa and was published in the Journal of Human Evolution.
"The Jacovec cranium represents a unique opportunity to learn more about the biology and diversity of our ancestors and their relatives and, ultimately, about their evolution," says Beaudet. "Unfortunately, the cranium is highly fragmentary and not much could be said about the identity nor the anatomy of the Jacovec specimen before."
Through high resolution scanning, the researchers were able to quantitatively and non-invasively explore fine details of the inner anatomy of the Jacovec specimen and to report previously unknown information about the genus Australopithecus.
"Our study revealed that the cranium of the Jacovec specimen and of the Ausralopithecus specimens from Sterkfontein in general was thick and essentially composed of spongy bone," says Beaudet. "This large portion of spongy bone, also found in our own cranium, may indicate that blood flow in the brain of Australopithecus may have been comparable to us, and/or that the braincase had an important role in the protection of the evolving brain."
In comparing this cranium to that of another extinct group of our family tree, Paranthropus, that lived in South Africa along with the first humans less than two-million-years ago, their study revealed an intriguing and unexpected aspect of the cranial anatomy in this genus.
"We also found that the Paranthropus cranium was relatively thin and essentially composed of compact bone. This result is of particular interest, as it may suggest a different biology," says Beaudet.
Situated in the Cradle of humankind, a Unesco World Heritage Site, the South African paleontological sites have played a pivotal role in the exploration of our origins. In particular, the Sterkfontein Caves site has been one of the most prolific fossil localities in Africa, with over 800 hominin remains representing 3 genera of hominin recovered since 1936, including the first adult Australopithecus, the iconic "Mrs Ples" and "Little Foot", the most complete single skeleton of an early hominin yet found.
"The Jacovec cranium exemplifies the relevance of the Sterkfontein fossil specimens for our understanding of human evolution," says Beaudet. "Imaging techniques open unique perspectives for revisiting the South African fossil assemblage."

Thursday, June 21, 2018

Stone tools from ancient mummy reveal how Copper Age mountain people lived


IMAGE
IMAGE: This is a stone tool. view more 
Credit: Wierer et al (2018)
Stone tools found with a 5,300-year-old frozen mummy from Northern Italy reveal how alpine Copper Age communities lived, according to a study published June 20, 2018 in the open-access journal PLOS ONE by Ursula Wierer from the Soprintendenza Archeologia, Florence, Italy, and colleagues. The freely available article in PLOS ONE: http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0198292

The Tyrolean Iceman is a mummified body of a 45-year-old man originally discovered with his clothes and personal belongings in a glacier of the Alps mountains, in the South Tyrol region, Italy. Previous research showed that the Iceman lived during the Copper Age, between 3370-3100 BC, and was probably killed by an arrow. In this study, the researchers analyzed the Iceman's chert tools to learn more about his life and the events that led to his tragic death.

The team used high-power microscopes and computed tomography to examine the chert tools in microscopic detail, including a dagger, borer, flake, antler retoucher, and arrowheads. The structure of the tools' chert reveals that the stone was collected from several different outcrops in what is now the Trentino region (Italy), about 70km away from where the Iceman was thought to live. Comparing this ancient toolkit with other Copper Age artefacts revealed stylistic influences from distant alpine cultures.

By carefully analyzing the wear traces of the Iceman's chert tools, the authors concluded he was right-handed and probably had recently resharpened and reshaped some of his equipment.
These findings shed light into the Iceman's personal history and support previous evidence suggesting that alpine Copper Age communities maintained long-distance cultural contacts and were well provisioned with chert.
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Swedes have been brewing beer since the Iron Age



Archaeologists at Lund University in Sweden have found carbonised germinated grains showing that malt was produced for beer brewing as early as the Iron Age in the Nordic region. The findings made in Uppåkra in southern Sweden indicate a large-scale production of beer, possibly for feasting and trade.

"We found carbonised malt in an area with low-temperature ovens located in a separate part of the settlement. The findings are from the 400-600s, making them one of the earliest evidence of beer brewing in Sweden", says Mikael Larsson, who specialises in archaeobotany, the archaeology of human-plant interactions.

Archaeologists have long known that beer was an important product in ancient societies in many parts of the world. Through legal documents and images, it has been found, for example, that beer was produced in Mesopotamia as early as 4 000 BCE. However, as written sources in the Nordic region are absent prior to the Middle Ages (before ca 1200 CE), knowledge of earlier beer production is dependent on botanical evidence.

"We often find cereal grains on archaeological sites, but very rarely from contexts that testify as to how they were processed. These germinated grains found around a low-temperature oven indicate that they were used to become malt for brewing beer", says Mikael Larsson.

Beer is made in two stages. The first is the malting process, followed by the actual brewing. The process of malting starts by wetting the grain with water, allowing the grain to germinate. During germination, enzymatic activities starts to convert both proteins and starches of the grain into fermentable sugars. Once enough sugar has been formed, the germinated grain is dried in an oven with hot air, arresting the germination process. This is what happened in the oven in Uppåkra.

"Because the investigated oven and carbonised grain was situated in an area on the site with several similar ovens, but absent of remains to indicate a living quarter, it is likely that large-scale production of malt was allocated to a specific area on the settlement, intended for feasting and/or trading", explains Mikael Larsson.

Early traces of malt in connection with beer brewing have only been discovered in two other places in the Nordic region. One is in Denmark from 100 CE and one is in Eketorp on Öland from around 500 CE.

"From other archaeological sites in the Nordic region, traces of the bog-myrtle plant have been found, which indicates beer brewing. Back then, bog-myrtle was used to preserve and flavour beer. It wasn't until later during the Middle Ages that hops took over as beer flavouring", Mikael Larsson concludes.

Facts: Method
Two-litre soil samples are taken from various archaeological contexts - in houses, in pits, around hearths and ovens. The plant material found is usually preserved in a carbonised state. The soil is mixed with water and the carbon rises to the surface and is sieved through a fine mesh. The particles extracted are dried and studied under a microscope.

Facts: Uppåkra
Uppåkra is currently the largest Iron Age settlements in southern Scandinavia and served as a densely populated political and religious centre of power for more than 1 000 years, from 100s BCE to the 1 000s CE. The many findings made of imported luxury items such as jewellery and glass bowls, and from a developed production of crafts, indicate that the location was both rich and a significant trading centre.