Cranial Fragments Research Articles

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The Paleoindian burial from the Brazilian rockshelter site of Toca dos Coqueiros was discovered in July 1997 (Guidon et al., 1998). The site is one of several known Paleoindian sites in the immediate region of the Serra da Capivara National Park, located in the northeastern Brazilian state of Piaui (Guidon and Arnaud, 1991). The interred individual, carrying a calibrated date of 11,060 years BP (conventional radiocarbon age of 9,870 50 years BP; beta 109844; Guidon et al., 1998), is significant in being one of the oldest human skeletons recovered in the New World, and was described as female (Lessa and Guidon, 2002). I had the opportunity to examine the Coqueiros individual and reconstruct the skull. I present illustrative data to support the view that the Coqueiros skeleton represents a gracile male. Comparative craniofacial morphometrics suggest as well that Paleoindian groups living in South America at this distant temporal horizon may not have been closely related to later and recent Amerind populations (Neves and Pucciarelli, 1991; Neves et al., 1998, 1999). Our craniometric evaluation of this individual supports that as well (Nelson et al., in press). The cranial vault and much of the enveloping matrix had been stabilized with B72 resin, as these had been subjected to some crushing and fragmentation over the course of time. They did not, however, appear to be particularly deformed, but much of the vault was obscured by soil matrix impregnated with B72. The loose fragment assemblage included a considerable amount of facial material: nasals, maxillary frontal processes, the left malar, and superorbital portions of the frontal, including the glabella. Several basilar fragments were also present, representing the margins of the foramen magnum, sphenoid alae, portions of the occipital squamous, and temporals. In addition to a significant quantity of diagnostic cranial fragments, the assemblage included numerous postcranial fragments. Among this material was the inferior ramus of the right pubis and enough of the posterior inferior iliac spine to reconstruct the posterior margin of the left greater sciatic notch. In addition, both femoral heads and the right humeral and radial heads were available for study. A full reconstruction of the skull was undertaken. Sections of vault bone and matrix embedded in B72 were soaked in acetone, taken apart, cleaned, dried, and reassembled using a plastic-resin DucoTM cement. Loose craniofacial fragments were sorted, sided, and assembled. The bony facial reconstruction was articulated to the vault reconstruction. On the pelvis, the ventral ramus was reconstructed onto the larger portion of the right pubis in order to aid in identification of sex-based morphology. In addition, the posterior inferior iliac spine was reconstructed back to the left innominate, in order to establish the form of the greater sciatic notch. The greater sciatic notch tends to be wider in females and narrower in males, though Fulginiti (1993) demonstrated variability in this tendency. In the dorsal midline, there is sex-based variability in the morphology of the sacrum as well. In males, the centrum of the first sacral vertebra tends to be wider than the alae, by approximately three-fifths vs. onefifth for alar widths, while in females these widths tend to be more evenly apportioned at one-third each of the total sacral width across the top. In the collections at the Fundacao Museu do Homem Americanos (FUMDHAM) is an unambiguous female Paleoindian skeleton dated to within 1,200 years of Coquieros. Lessa and Guidon (2002) mentioned this individual (Toca da Janela da Barro do Antoniao), but stated that they could not use it for comparison. In addition, an unambiguous female os pubis, from a relatively recent burial context (within the past 500 years), was chosen from the collections for purposes of comparison (Fig. 1). Figure 1 is a comparative photograph of the pubic bones from the Coqueiros, Antoniao, and recent female skeletons. The Antoniao individual is in a poor enough state of preservation that visualizing morphology beyond the width of the ventral surface and a hint of the subpubic angle is challenging. In the recent burial (see above), even though the ventral ramus is poorly reconstructed, form is clearly evident, and the width of the ventral surface of the element (with the attendant ventral arc) and subpubic angle are all clearly visible. These stand in stark

The skull of Homo naledi

The species Homo naledi was recently named from specimens recovered from the Dinaledi Chamber of the Rising Star cave system in South Africa. This large skeletal sample lacks associated faunal material and currently does not have a known chronological context. In this paper, we present comprehensive descriptions and metric comparisons of the recovered cranial and mandibular material. We describe 41 elements attributed to Dinaledi Hominin (DH1–DH5) individuals and paratype U.W. 101-377, and 32 additional cranial fragments. The H. naledi material was compared to Plio-Pleistocene fossil hominins using qualitative and quantitative analyses including over 100 linear measurements and ratios. We find that the Dinaledi cranial sample represents an anatomically homogeneous population that expands the range of morphological variation attributable to the genus Homo. Despite a relatively small cranial capacity that is within the range of australopiths and a few specimens of early Homo, H. naledi shares cranial characters with species across the genus Homo, including Homo habilis, Homo rudolfensis, Homo erectus, and Middle Pleistocene Homo. These include aspects of cranial form, facial morphology, and mandibular anatomy. However, the skull of H. naledi is readily distinguishable from existing species of Homo in both qualitative and quantitative assessments. Since H. naledi is currently undated, we discuss the evolutionary implications of its cranial morphology in a range of chronological frameworks. Finally, we designate a sixth Dinaledi Hominin (DH6) individual based on a juvenile mandible.

Direct radiocarbon dating and genetic analyses on the purported Neanderthal mandible from the Monti Lessini (Italy).

Anatomically modern humans replaced Neanderthals in Europe around 40,000 years ago. The demise of the Neanderthals and the nature of the possible relationship with anatomically modern humans has captured our imagination and stimulated research for more than a century now. Recent chronological studies suggest a possible overlap between Neanderthals and anatomically modern humans of more than 5,000 years. Analyses of ancient genome sequences from both groups have shown that they interbred multiple times, including in Europe. A potential place of interbreeding is the notable Palaeolithic site of Riparo Mezzena in Northern Italy. In order to improve our understanding of prehistoric occupation at Mezzena, we analysed the human mandible and several cranial fragments from the site using radiocarbon dating, ancient DNA, ZooMS and isotope analyses. We also performed a more detailed investigation of the lithic assemblage of layer I. Surprisingly we found that the Riparo Mezzena mandible is not from a Neanderthal but belonged to an anatomically modern human. Furthermore, we found no evidence for the presence of Neanderthal remains among 11 of the 13 cranial and post-cranial fragments re-investigated in this study.

Beavers of the Genus Trogontherium (Castoridae, Rodentia)From the Late Miocene of Ukraine

Abstract Beavers of the Genus Trogontherium (Castoridae, Rodentia) from the Late Miocene of Ukraine. Apoltsev, D. A., Rekovets, L. I. - The description of teeth and cranial fragments of extinct beavers, belonging to the genus Trogontherium Fischer von Waldheim, 1809 from Late Miocene strata of Ukraine, is presented in this paper. Their comparison with contemporaneous remains from localities in Europe and Asia is conducted. New data on systematics and paleogeography of Trogontherium (Euroxenomys) minutum minutum Meyer, 1938 and T. (Euroxenomys) minutum rhenanum Franzen, Storch, 1975, and also аbout their possible phylogenetic connections with the most ancient representatives of the family Castoridae are presented.

Shark–Cetacean trophic interaction, Duinefontein, Koeberg, (5 Ma), South Africa

This study forms part of a larger project to reconstruct the Mio-Pliocene marine palaeoenvironment along South Africa’s west coast. It documents the shark–cetacean trophic interaction during the Zanclean (5 Ma) at Duinefontein (Koeberg). The damage described on the fragmentary cetacean bones was compared with similar damage observed on fossils from Langebaanweg, a Mio-Pliocene site on the west coast of South Africa, and data present in the literature. This comparison showed that the damage was the result of shark bites. The state of preservation makes it difficult to determine if the shark bite marks were the cause of death or as a result of scavenging. The presence of the bite marks on the bone would, however, indicate some degree of skeletonisation. Bite marks on some cranial fragments would suggest that the cetacean’s body was in an inverted position typical of a floating carcass. The preservation of the material suggests that the bones were exposed to wave action resulting in their fragmentation as well as abrasion, polishing and rolling. It also suggests that the cetacean skeletons were exposed for a long time prior to burial. The morphology of the bites suggests that the damage was inflicted by sharks with serrated and unserrated teeth. Shark teeth collected from the deposit include megalodon (Carcharodon megalodon), white (Carcharodon carcharias) as well as mako (Isurus sp. and Cosmopolitodus hastalis) sharks, making these sharks the most likely predators/scavengers.

Filling the gap. Human cranial remains from Gombore II (Melka Kunture, Ethiopia; ca. 850 ka) and the origin of Homo heidelbergensis.

African archaic humans dated to around 1,0 Ma share morphological affinities with Homo ergaster and appear distinct in cranio-dental morphology from those of the Middle Pleistocene that are referred to Homo heidelbergensis. This observation suggests a taxonomic and phylogenetic discontinuity in Africa that ranges across the Matuyama/Brunhes reversal (780 ka). Yet, the fossil record between roughly 900 and 600 ka is notoriously poor. In this context, the Early Stone Age site of Gombore II, in the Melka Kunture formation (Upper Awash, Ethiopia), provides a privileged case-study. In the Acheulean layer of Gombore II, somewhat more recent than 875 ±10 ka, two large cranial fragments were discovered in 1973 and 1975 respectively: a partial left parietal (Melka Kunture 1) and a right portion of the frontal bone (Melka Kunture 2), which probably belonged to the same cranium. We present here the first detailed description and computer-assisted reconstruction of the morphology of the cranial vault pertaining to these fossil fragments. Our analysis suggest that the human fossil specimen from Gombore II fills a phenetic gap between Homo ergaster and Homo heidelbergensis. This appears in agreement with the chronology of such a partial cranial vault, which therefore represents at present one of the best available candidates (if any) for the origin of Homo heidelbergensis in Africa.

Nadaouiyeh – A Homo erectus in Acheulean context

The Middle East is apparently the most important passage for the dispersal of early hominins. Numerous archeological sites prove the existence of hominin populations in this region, but despite these rich cultural remains, hominin fossils are very rare. In 1996, a hominin left parietal was found in an Acheulean context. In addition, the faunal remains indicate a steppe environment. What does this single cranial fragment tell us? Based on new publications and in particular on recent finds, the value of isolated elements is discussed.

Death and Display in the North Atlantic: The Bronze and Iron Age Human Remains from Cnip, Lewis, Outer Hebrides

Abstract This paper revisits the series of disarticulated human remains discovered during the 1980s excavations of the Cnip wheelhouse complex in Lewis. Four fragments of human bone, including two worked cranial fragments, were originally dated to the 1st centuries BC/AD based on stratigraphic association. Osteoarchaeological reanalysis and AMS dating now provide a broader cultural context for these remains and indicate that at least one adult cranium was brought to the site more than a thousand years after the death of the individual to whom it had belonged.

The Foramen Magnum as a Determinant of Sex in a Series of Jamaican Crania

One of the most vital tasks of a forensic anthropologist is sex determination utilizing the available bone. The need for methods to estimate sex from cranial fragments is manifested when only a part of the skull is brought for human identification. The foramen magnum is an important feature of the base of the cranium. In this present study, the morphometric measurements taken on foramen magnum from a well‐preserved collection of dry Jamaican skulls were analysed using standard osteometric techniques. The focus of this research was to determine the utility of the foramen magnum as a seminal factor of sex determination in Jamaican crania.A literature search revealed that there was no data available on the morphology and morphometry of the Foramen magnum in Jamaican Skulls, skulls of the Caribbean nor African‐Based Diaspora. Twenty human adult cadaver dry skulls of known sex which were available, were randomly selected from the collection of the Anatomy Section Section of the Department of Basic Medical Sciences at The University of the West Indies, Mona. and analysed in the present study. The foramen magnum shapes were determined as an oval shape 40%, round shape in 30% of cases, 25% tetragonal and 5% irregular. Using a digital caliper, spreading caliper and metrically aligned uniform string, three consecutive measurements were made for each craniometric measurement. The antero‐posterior and transverse diameters were measured and the average foraminal index was calculated. Data obtained may be useful to the neurosurgeon in analyzing the morphological anatomy of the Craniovertebral junction. The findings are also informative to Anatomists, Anthropologists, Archaeologists, Forensic Scientists and other medical fields.

Tylosaurine mosasaurs (Squamata) from the Late Cretaceous of northern Germany

AbstractTwo genera of tylosaurine mosasaurs, Tylosaurus and Hainosaurus, are recorded for the first time from Germany. Tylosaurus sp. is represented by two isolated tooth crowns, originally described as Mosasaurus? alseni (here considered a nomen dubium) from the latest Santonian–Early Campanian, which are very similar to T. ivoensis and T. gaudryi. The material of Hainosaurus sp. comprises a maxillary with associated postorbitofrontal, two pterygoid teeth and several indeterminate cranial fragments. The specimen from the Late Campanian is slightly less derived than H. bernardi from the Maastrichtian in retaining labiolingually less compressed anterior maxillary teeth and unserrated pterygoid teeth with only very weak carinae. Despite only minor skeletal differences, the genus Hainosaurus is considered to be distinct from Tylosaurus because of its significant modification of the dental apparatus compared to the plesiomorphic condition in the latter. This dental morphology suggests a phylogenetic trend from a generalised-piercing marginal dentition in Tylosaurus towards the increasingly labiolingually compressed, symmetrical, strongly bicarinate cutting marginal teeth in Hainosaurus spp. from the Early through Late Campanian and Maastrichtian. A similar trend is also present in pterygoid teeth with very indistinct unserrated carinae in the Campanian Hainosaurus sp. towards serrated ones in the Maastrichtian H. bernardi. A short review indicates the presence of Hainosaurus in northern, central and western Europe (Sweden to Spain) since the Early Campanian, and the occurrence of Tylosaurus spp. in the same area until the Late Campanian. Hainosaurus persisted until the end of the Maastrichtian; outside Europe it may have been present in the Late Campanian of the USA and the Maastrichtian of the Democratic Republic of Congo. Judging from a simple, uni- to bicarinate, stoutly conical tooth morphology in aigialosaurs and very basal mosasaurs as well as phylogenetic patterns, the development of blade-like cutting tooth crowns appears to have been convergent in several clades of large-bodied Campanian–Maastrichtian mosasaurids. These include both mosasaurines ('Leiodon' mosasauroides, Prognathodon? sectorius, Prognathodon? kianda, Eremiasaurus heterodontus) and tylosaurines (Hainosaurus spp.).

Microdiscectomy and Translaminar Approach: Mini-Invasiveness and Posterior Elements Conservation Relevance

Introduction Interlaminar approach represents the standard procedure for lumbar disc herniation surgical treatment. In case of cranial or lateral fragment migration into the neuroforamen (hidden zone), it is necessary to perform partial or total arterectomy to remove the herniated material, thus leading to iatrogenic vertebral instability risk. Materials and Methods Since January 2010, 40 patients with lumbar disc herniation and with disc fragment migration into the “hidden zone” underwent microdiscectomy by translaminar approach. Using a micro high-speed cutter, a 8 ± 2 mm fenestration at the level of affected side hemilamina was performed, displaying the involved root and removing the disc fragment. A clinical follow-up at months 1, 3, 6, and 12 was performed by mean of the Visual Analog Scale (VAS) and the Oswestry Disability Index (ODI). A radiographic control at months 1, 6, and 12 was obtained (dynamic radiographic studies in last two times). Results In over 60% of cases, L4-L5 was the disk involved. Roots visualization was successfully achieved through translaminar approach. There was no need to associate neither partial or complete arterectomy nor flavectomy. An intraoperative bleeding occurred only in 5% of cases, as a consequence of an epidural veins involvement, treated through local hemostasis (Avitene) and without surgery time prolongation (mean duration 60 ± 10 minutes). There were no dural injuries. Patients showed an immediate and lasting radicular symptoms resolution. There was no need to perform revision surgery. Dynamic radiographic studies at months 6 and 12 did not detected instabilities. Conclusion Surgical microdiscectomy allowed us to successfully treat patients affected by lumbar disc herniation. Low back pain treatment and disc-root conflict resolution must be done conservatively avoiding iatrogenic instability risk. In case of cranial or lateral fragment migration into the neuroforamen, because a partial or total arterectomy could be requested for herniated disc fragment removal, this is not always possible. A conservative and minimally invasive approach, which allows to resolve disc-root conflict without affecting spine stability, represents a crucial technique. The translaminar approach is an anatomical, effective, and minimally invasive technique, suitable in cases of lumbar disc herniations with disc fragment migration into the hidden zone. It can be performed in all lumbar segments, not involving posterior elements (both bony and ligamentous ones), which are necessary for spine stability. In case of proper indications, this technique is more effective than the standard one because it allows symptoms relief, faster recovery times, less postoperative pain, and reduction in iatrogenic instability risk. Disclosure of Interest None declared References Papavero L, Kothe R. The translaminar approach for cranially extruded lumbar disc herniations. Oper Orthop Traumatol 2013;25(1):6–15 Seiz M, Pechlivanis I, Bag S, Schmieder K, Thome C, Tuettenberg J. [Translaminar fenestration for caudally herniated lumbar discs—a technical note]. Z Orthop Unfall 2009;147(5):597–599 Choi KC, Kim JS, Ryu KS, Kang BU, Ahn Y, Lee SH. Percutaneous endoscopic lumbar discectomy for L5-S1 disc herniation: transforaminal versus interlaminar approach. Pain Physician 2013;16(6):547–556

A new capitosauroid temnospondyl from the Middle Triassic upper Fremouw Formation of Antarctica

ABSTRACTWe describe a new capitosauroid temnospondyl, Antarctosuchus polyodon, gen. et sp. nov., on the basis of a large and relatively complete skull from the upper Fremouw Formation of Antarctica. The new species is characterized by its possession of numerous, extremely small maxillary, palatine, and ectopterygoid teeth, a dental pattern that suggests specialization on small prey items, possibly invertebrates. The taxon is also characterized by a parachoanal tooth row that extends far posterior to the choana and occipital condyles set close to the midline. A combination of features, including a flat skull and low occiput together with well-developed sensory canals, suggests an aquatic lifestyle. We address the phylogenetic relationships of Antarctosuchus by adding it to a recent cladistic analysis of Capitosauria. The revised data set includes 27 taxa and 53 characters. The results of this analysis place Antarctosuchus within a clade of derived Triassic stereospondyls as the sister taxon to Paracyclotosaurus crookshanki from the Triassic Denwai Formation of India. To date, the upper Fremouw Formation has yielded two endemic temnospondyl species (viz., Kryostega collinsoni and Antarctosuchus polyodon), although indeterminate remains referred to benthosuchids and a cranial fragment assigned to Parotosuchus sp. have also been noted. In contrast to the broadly distributed therapsid taxa recognized from the Middle Triassic of Antarctica (e.g., Cynognathus, Diademodon), the temnospondyl fauna suggests more limited interchange with other coeval southern Pangean basins (e.g., Karoo, Luangwa, Ruhuhu, Waterberg).SUPPLEMENTAL DATA—Supplemental materials are available for this article for free at http://www.tandfonline.com/UJVP.

Hyperostosis frontalis interna in a Neandertal from Marillac (Charente, France)

The site of Marillac (Charente, France) has yielded an important stratigraphic sequence containing numerous Neandertal remains (some of them with peri-mortem manipulations) from lithofacies 2 (Quina Mousterian). This level has been correlated with MIS 4 and is associated with a TL date of 57,600 ± 4600 years BP (before present).The study of one of the cranial fragments (Marillac 3) revealed a grade 2 or Type B Hyperostosis frontalis interna (HFI), remodelling and altering the internal table of the thick frontal bone. This pathology has been analysed macroscopically together with radiography and sections made using a microscanner and a scanner. The development of the HFI is compared with published evidence for Sangiran 3 (Homo erectus), two other Neandertals (Forbes' Quarry and Shanidar 5), and several archaeological samples. Forbes' Quarry seems to display more advanced HFI than either Shanidar 5 or Marillac 3. The three Neandertals may be considered mature individuals (≥40 years) and it seems likely that the aetiology of this pathology may be associated with hormonal alterations, as has been suggested for past and extant populations.While the prevalence of HFI in contemporary post-menopausal women is well documented, the identification of HFI amongst males from several archaeological samples (Neanderthals, Ancient Egypt, Syrian Bronze Age or the Anasazi), with different stages of development, confirm that the pathology affected both sexes in past populations. Additional data and research are still needed to elucidate the etiopathogenesis of this illness and to better understand the relationship between environmental factors and their possible influences/consequences for the development of metabolic disorders in prehistoric populations.

Garba III (Melka Kunture, Ethiopia): a MSA site with archaic Homo sapiens remains revisited

Garba III, in the upper Awash Valley of Ethiopia, is one of the many sub-sites of Melka Kunture, where the overall archaeological record starts at c. 1.8 Ma. Garba III was excavated over several years in the 1970s, under the direction of Francis Hours, who was able to publish only preliminary reports before his untimely death. At the base of the sequence, Acheulean layers were discovered and, above then, MSA layers characterized by ferruginous concretions, where three cranial fragments of Homo sapiens were also found. An age close to 150 ka was suggested for the human remains and associated industry of the upper layers, which are the focus of the current re-assessment. At the time, however, no clear-cut distinction was made between Acheulean and MSA. In 2011, the original site was re-located, geological trenches were dug, the stratigraphic sequence was documented in detail, and a geomorphological reconstruction was prepared. Lithic collections and anthropological remains, kept in Addis Ababa, were also re-studied. New field research highlights complex site formation processes, including cyclic phases of erosion and re-deposition of pre-existing soils and deposits. However, pedogenetic processes, which developed twice, also point to prolonged phases of stability, in good accordance with the state of preservation of the lithic industry, which is neither rolled nor fragmented. Small-sized obsidian pebbles were knapped, which were available locally in the alluvium deposits. The technological and typological analysis confirms that the lithic industry is Early MSA. A variety of knapping methods were in use, including the Levallois method, well established and mostly recurrent. Points were produced, as well as scrapers, denticulates, and scaled pieces. Circumstantial evidence points to an age not later than an early phase of MIS 5e. The anthropological remains, one of which was so far undescribed, are fragments of a right parietal bone, of a parietal or, more likely, of a frontal bone, and of an occipital bone. They contribute to the still scanty fossil record available at the key-time of the “archaic” H. sapiens emergence and early spread.

Possible Interbreeding in Late Italian Neanderthals? New Data from the Mezzena Jaw (Monti Lessini, Verona, Italy)

In this article we examine the mandible of Riparo Mezzena a Middle Paleolithic rockshelter in the Monti Lessini (NE Italy, Verona) found in 1957 in association with Charentian Mousterian lithic assemblages. Mitochondrial DNA analysis performed on this jaw and on other cranial fragments found at the same stratigraphic level has led to the identification of the only genetically typed Neanderthal of the Italian peninsula and has confirmed through direct dating that it belongs to a late Neanderthal. Our aim here is to re-evaluate the taxonomic affinities of the Mezzena mandible in a wide comparative framework using both comparative morphology and geometric morphometrics. The comparative sample includes mid-Pleistocene fossils, Neanderthals and anatomically modern humans. This study of the Mezzena jaw shows that the chin region is similar to that of other late Neanderthals which display a much more modern morphology with an incipient mental trigone (e.g. Spy 1, La Ferrassie, Saint-Césaire). In our view, this change in morphology among late Neanderthals supports the hypothesis of anatomical change of late Neanderthals and the hypothesis of a certain degree of interbreeding with AMHs that, as the dating shows, was already present in the European territory. Our observations on the chin of the Mezzena mandible lead us to support a non abrupt phylogenetic transition for this period in Europe.

New Neanderthal remains from Mani peninsula, Southern Greece: The Kalamakia Middle Paleolithic cave site

The Kalamakia cave, a Middle Paleolithic site on the western coast of the Mani peninsula, Greece, was excavated in 1993–2006 by an interdisciplinary team from the Ephoreia of Paleoanthropology and Speleology (Greek Ministry of Culture) and the Muséum national d'Histoire naturelle (Paris). The site is dated to between ca. 100,000 and >39,000 years BP (Before Present) and has yielded Mousterian lithics, a rich fauna, and human remains from several layers. The latter include 10 isolated teeth, a cranial fragment and three postcranial elements. The remains represent at least eight individuals, two of them subadults, and show both carnivore and anthropogenic modifications. They can be identified as Neanderthal on the basis of diagnostic morphology on most specimens. A diet similar to that of Neanderthals from mixed habitat is suggested by our analysis of dental wear (occlusal fingerprint analysis) and microwear (occlusal texture microwear analysis), in agreement with the faunal and palynological analyses of the site. These new fossils significantly expand the Neanderthal sample known from Greece. Together with the human specimens from Lakonis and Apidima, the Kalamakia human remains add to the growing evidence of a strong Neanderthal presence in the Mani region during the Late Pleistocene.

Cranial Reconstruction With Titanium Clamps in Frontal Comminuted Depressed Skull Fractures

Frontal comminuted depressed skull fractures need special attention due to complications and aesthetics. The optimal method of reconstruction and fixation of frontal bone fragments remains a matter of discussion. We explored the advantages of reconstruction of frontal bone with titanium clamps. From May 2007 to September 2011, we performed 18 craniotomies with titanium clamps to fix the cranial fragments. On the beginning of craniotomy, single-window craniotomy (n = 11) and 2-window craniotomy (n = 9) were designed. After dural closure and frontobasal reconstruction, these fragments were fixed with titanium clamps. A helical CT scan was obtained after operation and a 3-dimensional technique was performed to evaluate the postoperative results. The CranioFix titanium clamp system was applied in 18 patients. No intraoperative and postoperative complications related to clamps were observed. The number of bone fragments ranged from 2 to 5 (average 3.3 pieces) while the number of clamps ranged from 3 to 8 (average 5.8). The time of refixation ranged from 5 to 17 minutes with an average of 9.4 minutes. Obvious statistical significance (P = 0.015) was found in postoperative CT scan results between single-window group and 2-window group, although it is not statistically different in intraoperative subjective valuation (P > 0.05). In all 18 cases, the alignment of fragments was precise, the fixation rigid, and the aesthetic result satisfying. Reconstruction of the forehead by refixation of bone fragments with titanium clamps in frontal depressed skull fractures is safe and suitable. This technique promises to be a good alternative in the repair of frontal comminuted depressed skull fractures. The simplicity, reliable fixation, and fast handling are its prominent features.

Non-invasive examination of a skull fragment recovered from a World War Two aircraft crash site

The discovery of human remains dating to the time of the Second World War is a common occurrence in Europe and the Pacific regions. This case report demonstrates the analysis of a bone fragment recovered from a Luftwaffe crash site in Austria during the summer of 2007. Eye-witness statements and official reports were used to reconstruct the historical background of the case. A recovered German military identity tag helped to identify the pilot. Aircraft parts, also discovered at the crash site in 2007, aided the identification of the aircraft type and corroborated the eye-witness reports of the final moments before and during the crash. The bone was analyzed chiefly to establish its human or non-human origin and to identify from which anatomic region the fragment could have arisen. It was identified as part of a human adult skull which exhibited peri-mortem fractures and heat damage as well as post-mortem vegetation staining. The historical background information in connection with the morphological analysis led to the presumptive identification of the cranial fragment as belonging to a downed German pilot.

Earliest Porotic Hyperostosis on a 1.5-Million-Year-Old Hominin, Olduvai Gorge, Tanzania

Meat-eating was an important factor affecting early hominin brain expansion, social organization and geographic movement. Stone tool butchery marks on ungulate fossils in several African archaeological assemblages demonstrate a significant level of carnivory by Pleistocene hominins, but the discovery at Olduvai Gorge of a child's pathological cranial fragments indicates that some hominins probably experienced scarcity of animal foods during various stages of their life histories. The child's parietal fragments, excavated from 1.5-million-year-old sediments, show porotic hyperostosis, a pathology associated with anemia. Nutritional deficiencies, including anemia, are most common at weaning, when children lose passive immunity received through their mothers' milk. Our results suggest, alternatively, that (1) the developmentally disruptive potential of weaning reached far beyond sedentary Holocene food-producing societies and into the early Pleistocene, or that (2) a hominin mother's meat-deficient diet negatively altered the nutritional content of her breast milk to the extent that her nursing child ultimately died from malnourishment. Either way, this discovery highlights that by at least 1.5 million years ago early human physiology was already adapted to a diet that included the regular consumption of meat.

A ‘new’ palaeolithic dog from central Europe

AbstractKesslerloch Cave in Switzerland is one of the major Magdalenian sites in Central Europe. During a recent reanalysis of the faunal remains, we identified a cranial fragment and teeth of the domestic dog. The large maxillar fragment was directly dated to 12.225±45 bp (KIA‐33350) or c. 14.100‐14.600 BP. The finds are metrically well below the natural variability of wolves from both Palaeolithic and recent times and even show slight morphological differences to the wild wolves from the site. We argue that the maxilla fragment must now be considered the earliest indisputable directly dated evidence of a domestic dog. Copyright © 2010 John Wiley & Sons, Ltd.