Cist grave points to Bronze Age burial ground near Loch Ness

Archaeologists surveying a site in Drumnadrochit by Loch Ness in Scotland have discovered a 4,000-year-old cist grave. There were no human remains in the stone-lined pit because it had become filled with soil and any organic materials decayed into nothingness, but there was a single carinated beaker found intact on the cobbled floor. The geometric decoration of the pot identified it as dating to and 2200-1900 B.C.

The find is all the more significant because it’s not the only one. Another cist burial was unearthed on land adjacent to the current site in January 2015 after archaeologists were called in on an urgent salvage mission. Workers building a new health center in Drumnadrochit raised a large stone slab and found a stone-lined burial cist containing human skeletal remains in a crouched position. Preliminary study assessed the bones to date to the Bronze Age and a full archaeological excavation ensued. It revealed a partial skeleton of an adult. The remains weren’t in great condition, but three feet away from the inhumation, archaeologists found an oval pit with sherds from a beaker.

Beaker pot recovered from cist. Photo by AOC Archaeology.These were the first Bronze Age artifacts and human remains found in the location between the Coilte and Enrick rivers. At the time, archaeologists thought that might be significant, that the proximity to an ancient river channel made the site appealing to Bronze Age people as a site for funerary ritual. The area has long since been drained to make way for farming and it’s likely that centuries of agricultural activity damaged any other burials. The discovery of the intact beaker pot in a cist, even without a body, supports the contention that the spot had special meaning 4,000 or so years ago.

Mary Peteranna, Operations Manager for AOC Archaeology’s Inverness office, said: “The discovery of a second Bronze Age cist on the site provides increasing evidence for the special selection of this site in the prehistoric landscape as a location for ceremonial funerary activity.

“This cist, along with the medical centre cist and a second burial pit, is generating much more information about the prehistory of Glen Urquhart.”

Mrs Peteranna added: “Historically, there was a large cairn shown on maps of the area but you can imagine that centuries of ploughing in these fields have removed any upstanding reminders of prehistoric occupation.

“During the work, we actually found a displaced capstone from another grave that either has not survived or has not yet been discovered. So it’s quite likely that these graves were covered by stone cairns or mounds, long-since ploughed out.”

Rock art may be 1st depiction of leashed dogs

Intricately etched rock panels in the Saudi desert include some of the earliest known depictions of dogs and humans hunting together and of canines being handled by people with leashes. A recent study of some 1,400 rock art panels at the sites of Shuwaymis and Jubbah in northwestern Saudi Arabia found 147 scenes of packs of dogs helping people take down prey like equids (likely African asses), lions, ibex, gazelles and leopards. The canines did front lines duty, assault the prey with overwhelming forces to weaken them before the humans came in with bows and arrows to deliver the killing blows. In one scene in which 21 dogs surround an equid mother and her young, two of the dogs have a thick line carved from their necks to their humans’ hip, the earliest known evidence of this familiar link in prehistory.

The dogs are morphologically similar to modern-day Canaan dogs with pointed ears and curly tails, but there’s no way of knowing if they are an ancestor of the breed, or even if they were imported to the area of descendants of native tamed wolves. The fact that some of the dogs were leashed suggests there were already being utilized and trained for different jobs on the hunt. The exact date of the rock art is also unclear. Archaeologists believe they date to the Holocene, about 8,000-9,000 years ago, but there was no material at the rock art sites that could yield precision dating.

“This is the first imagery of a dog with a leash,” said Michael Petraglia, an archaeologist from the Max Planck Institute for the Science of Human History, in Germany, and an author of the study, which appeared in the Journal of Anthropological Archaeology and was first reported by Science. He said that because of where the lines were on the dog and human’s anatomy, they most likely represented actual leashes and were not mere symbolic lines.

Dr. Petraglia added that the rock art most likely dated to the early Holocene period, which began around when the Paleolithic ice age closed. But he acknowledged that the team was unable to date it directly because the etchings left little indication for when they were carved. Instead the team correlated the rock art with nearby archaeological sites that they had dated.

The team also found that the dog images were carved beneath images of cattle, which they said indicated that the dog images came earlier. They said earlier evidence had suggested these particular ancient humans had domesticated dogs before they began keeping cattle. They added that the transition from being hunter-gatherers to herding most likely occurred between 6,800 B.C. and 6,200 B.C., which they used to hypothesize that the rock art featuring dogs appeared before humans began herding.

“We can now say about 9,000 years ago people already controlled their dogs and had them on leashes and used them for really complex hunting strategies,” said Maria Guagnin, an archaeologist from the Max Planck Institute for the Science of Human History and lead author.

The dating is tenuous, however. Until they find direct evidence of the age of the rock art, they can’t confirm with certainty that this is the earliest leashed dog depiction or what it says about the development of human-canine cooperation before the Neolithic. The study has been published in the Journal of Anthropological Archaeology and can be read free of charge online.

More preserved organic material found at ruins of Lechaion

Lechaion, the main harbour town of the rich and powerful city of Corinth at the north end of the strategic isthmus connecting the Peloponnese peninsula to mainland Greece, was a bustling hub of Mediterranean trade from more than 1,000 years (with a brief interruption courtesy of the Roman conquest of Greece in 146 B.C. Julius Caesar had it rebuilt in 44 B.C., and the shinier, bigger Lechaion, aka Colonia Laus Iulia Corinthiensis, got right back to business until it was destroyed in an earthquake in the late 6th century A.D.

The harbour structures, including massive ones from the Roman era, have been fully submerged, most of them deep under layers of sand and sediment, ever since and were barely explored despite their historical significance until 2014 when the Lechaion Harbour Project (LHP) took on the long-delayed task of surveying the site. The Greek Ephorate of Underwater Antiquities, the University of Copenhagen and the Danish Institute at Athens have been collaborating on this ambitious project, sending teams of marine archaeologists to explore the physical ruins and geologists with the latest scanning technology to detect the buried remains that can’t be seen.

In 2015, LHP researchers discovered extremely rare surviving remains: large sections of six wooden barges, a total of 187 feet of wood, used as caissons to protect the harbour from heavy wind, surf and sedimentation. The warm brine of the Mediterranean is a welcoming environment for woodworm which can reduce timbers to nothingness in weeks. The odds of finding organic remains of any kind from thousands of years ago, never mind on so grand a scale, are vanishingly small. It gave rise to the hope that the team might someday find actual ship remains, maybe even a trireme, much sought but never found.

No trireme has turned up yet, but this season’s archaeological survey has found more organic material, including a worked wood post in jaw-dropping condition, seeds, nuts, twigs, fruit pits and bones. The caissons were part of two Roman-era monumental piers, dubbed Mole L-M1 and Mole L-M2, whose massive stone block are the only remains of the Outer Harbour still visible just above the water line.

“During the 2017 excavations, the first Roman-period harbour structures at Lechaion have come to light. The mysterious island monument in the middle of Harbour Basin 3 – an area of the Inner Harbour measuring 24,500 m2 – was dated to the early 1st century AD. It was likely built as part of a Roman building program designed to help restore Corinth, just as the enormous 45 metres long, 18 metres wide and 4 metres high mole was constructed on exactly the same orientation as the mysterious island monument. Also, we identified a new roughly 40.000 m2 large harbour basin in the Outer Harbour (probably 6th century AD), another 40.000 m2 basin in the Inner Harbour dated to the mid-1st century AD, and the possible foundation for a lighthouse,” reports University of Copenhagen archaeologist Bjørn Lovén who co-directs the Lechaion Harbour Project.

“We have excavated archaeological layers where almost everything is preserved. Consider the pristine preservation of the roughly 2000-year-old wooden post (see video) and imagine how well-preserved wood and other organic materials that still lie at the bottom of this harbour,” says Bjørn Lovén.

The wooden post probably served as either a part of the foundations for the structure itself or perhaps as a bollard for mooring ships. The team also unearthed a variety of seeds, bones with cut marks, a roller from a wooden block, and fragments of worked wood.

“As a part of our research the Centre for GeoGenetics will extract and analyse the ancient environmental DNA from the important archaeological deposits and attempt to reconstruct the past environment genetically. Recently, they have shown that ancient DNA in deposits can identify a wide variety of organisms, everything from bacteria to plants and animals. Hence, they will characterise what lived in the area of Lechaion during the various phases of Antiquity, including the Roman period. We are discovering everything from DNA evidence to monumental moles constructed of five-ton blocks,” concludes Lovén.

This video has some phenomenal footage of the moles from above and under the water, including shots of mud lines and trident marks carved into the massive five-ton blocks, plus the island monument in the Inner Harbour and its glossy golden wooden post.

How to kill with a Neolithic club

University of Edinburgh researchers have gone full CSI to discover how a Neolithic artifact could have been used to inflict fatal damage on a human skull. We don’t know much about what kind of weapons Neolithic people deployed to kill each other. Skulls have been found bearing the tell-tale signs of blunt force trauma, but objects that are clearly identifiable as weapons are thin on the ground. There are all kinds of weapons in the archaeological record from the Bronze and Iron Age periods — daggers, swords, pointy things made for the express purpose of person-to-person combat — but Stone Age objects like bows and arrows, clubs and axes are more ambiguous. They could be hunting tools, intended to injure or kill animals, or work tools.

There hasn’t been a great deal of research into what implements might have inflicted the cranial blunt force trauma wounds seen in the Neolithic osteological record, so the UoE’s Meaghan Dyer and Linda Fibiger turned to experimental forensic testing not unlike the methods dramatized in more or less ludicrous ways on TV shows like CSI. They chose not to opt for animal carcasses (of questionable accuracy) and human cadavers (of questionable medical ethics). They took a more cutting edge approach, employing a synthetic polyurethane “skin-skull-brain” model which unlike the animal carcasses accurately replicates human cranial morphology and unlike the cadavers does not require the violent treatment of human remains. This is the first use of the synthetic model in an experimental investigation of Neolithic blunt force trauma.

The weapon of choice for this test was a replica of the Thames Beater, an alder club recovered from the River Thames near London’s Chelsea neighborhood that was radiocarbon dated to 4660 ± 50 before the present, towards the end of the Neolithic period (about 7000 to 2000 B.C.). It was a very rare find, one of only a small number of Neolithic clubs to survive in Britain until the present, and is now in the Museum of London. Cracked and chipped from its advanced age, the Thames Beater is reminiscent of a busted cricket bat with an angled wooden blade tapering down to a thinner barrel and capped with a round pommel. It was more than two feet long when it was made.

The research team commissioned master carpenter David Lewis of Pelynt, Cornwall, to recreate the piece as it was 4600 years ago. He used alder wood and reproduced the weight, shape, dimensions and every other known aspect of the object to make the experiment as accurate as possible. Two skin-skull-brain models of different thicknesses to account for human variance (one 5mm thick, one 7mm) were created in Switzerland from polyurethane spheres coated in rubber skin. They left a hole open in the bottom for the researchers to introduce brain-simulating ballistics gelatin.

Then it was show time. One of the research assistants was the lucky wielder of the replica Thames Beater.

Once constructed the skin-skull-brain spheres were placed on an elevated platform 108.0cm high, supported on a cork ring 3.1cm tall and 13.8cm in diameter. The hole in the sphere was placed facing down. A right-handed adult male, 30 years old, 193.0cm tall and 88.5kg carried out the strikes.

Two types of blows were used to investigate any variable fracture patterns produced by different areas of the club. Figure four shows the hand positions for the pommel blow and the double-handed blade strike. For the doubled handed strikes with the blade, the club was swung into the air and down onto the skin-skull-brain model, contacting at the end of the blade. The blows with the pommel end of the club, had the club drawn up and the pommel aimed at the skin-skull-brain model. The strikes with the pommel had a notable decrease in force.

The skin-skull-brain models amply proved their worth, producing depression fractures deep enough to displace bone and radiating fractures that spread around the spheres. These are the wounds you’d expect to see in blunt force trauma. The pommel blows were particularly effective, creating large linear fractures extending outwards from the impact point. When the results were compared with the trauma evident on Neolithic skulls, they matched, in one case all but perfectly.

The depression fractures formed by the double-handed blade strikes to the skin-skull-brain models have significant resemblance to examples of diagnosed intentional blunt force trauma in the Neolithic osteological record. The fracture morphology, shape of displaced fragments and the beveled fracture edges produced in both spheres match very closely with trauma hypothetically linked to wooden club weapons (Teschler-Nicola et al. 1996; Schulting and Wysocki 2005: 125; Teschler-Nicola 2012: 108). This experimental study successfully demonstrates the accuracy of this summation, most notably with the remarkable match found in the 7mm thick sphere.

The fractures present on the 7mm sphere bear remarkable similarity to injuries in Individual 3, a 35-40 year old male from the Neolithic Austrian site of Asparn/Schletz (Teschler-Nicola et al. 1996; Teschler-Nicola 2012: 107). As seen in Figure 8, both skulls have a long thin depression site near the top of the skull, with several radiating fractures. The impact sites on both also have one straight and one slightly curved border. This is a remarkable match between the archaeological record and the experimental results.

The study breaks as much ground as it did polyurethane spheres. It confirms the viability of the models in doing this kind of experimental testing and can be applied to osteological remains from many time periods and contexts.

First the dinobird, now its ticks found in amber

The rich deposits of amber mined in Myanmar (formerly Burma) have produced another stellar example of Cretaceous creatures frozen in a dramatic and scientifically significant posture. Earlier this year researchers found the remains of a baby avian dinosaur of the enantiornithes species which was uniquely well-preserved having spent 99 million years encased in amber. The discovery shed new light on the animal’s growth and development, and now the same can be said for a long-extinct tick. A nymph tick of the Cornupalpatum burmanicum species has been found in resin caught in the act of grabbing onto the feather of an avian dinosaur.

Modern ticks feast mightily on the blood of mammals, but their ancestors didn’t have the smorgasbord of mammal species to enjoy that exist on the planet today. Mammals only got so numerous, large and varied after the Cretaceous–Paleogene mass extinction event 65 million years ago. What animals were their primary source of food in the Cretaceous? Most scientists thought reptiles, amphibians and the little mammals that were scurrying about at the time were likely sources. For one thing, there were enough of them to support an extensive parasitic population, unlike avian dinosaurs.

Researcher Ricardo Pérez-de la Fuente at the Oxford University Museum of Natural History thought the avialans worth exploring as prospective tick drive-thrus, and spent years studying ticks trapped in amber for evidence of their environment.

The tick-and-feather pair support a theory that Pérez-de la Fuente had already spent years developing, based on other ticks trapped in amber from the same period. Those ticks didn’t have dinosaur feathers encased with them, but there were little hairs. The hairs resemble those left behind by a type of beetle larva that, today, lives in bird nests.

“We had this indirect evidence about the relationship between ticks and feathered dinosaurs,” Pérez-de la Fuente says, but the researchers didn’t have any direct evidence for the relationship until they saw the tick and feather trapped together in amber. […]

Now, just because there’s a feather and a tick holding on to it during the resin flood that would kill it doesn’t make it incontrovertible proof that they fed off the avian dinosaurs. Other animals lived in nests (viz the above-mentioned beetle larva) and the feather could be an accidental floater that seems more suggestive than it is.

Pérez-de la Fuente acknowledges there is more work to be done to clarify the ancient origins of ticks and their blood-sucking behaviors. For example, one amber specimen contains a tick engorged with blood, but Pérez-de la Fuente and his co-authors couldn’t figure out how to analyze that blood because the tick wasn’t entirely encased in amber, so the iron in the blood was contaminated with minerals.

USE FROG DNA!11 What could possibly go wrong? Seriously, being able to purify and analyze prehistoric blood, even blood that has been contaminated environmentally, would open up intriguing new avenues of exploration. Give the leaps in analytic and DNA technology over the past few decades, it’s not inconceivable that someone will figure out how to study the blood of these kinds of specimens.

Interesting side note: we don’t know exactly where in Myanmar the amber ticks used in the study were found. The specimens were sold online to private collectors, but in something of a watershed event, one collector donated his amber to the American Museum of Natural History in New York and the other actually participated in the study. He has an author credit on the newly published study in the journal Nature Communication.

“We actually broke the wall between private collectors and scientists which is very uncommon, especially in paleontology,” Pérez-de la Fuente says. “That by itself is a success.”

May it be the first of many.