The taphonomy and palaeoenvironmental implications of the small mammals from Karain Cave,Turkey

The small mammal accumulations in the Pleistocene deposits of Karain Cave are investigated to identify the predators and possible biases in the fossil assemblages. Seven small mammal assemblages are studied in chronological order from two chambers of the cave, the main chamber E and the side chamber B. The lowermost level within the whole sequence is Proto-Charentien, which corresponds to an early stage of the Middle Palaeolithic. The main part of the material belongs to Middle Palaeolithic layers. The most important aspect of the fossil record in the cave is the human occupation without any interruption through the Pleistocene to Holocene. The small mammal fossil evidence in the cave denotes the presence of opportunistic predators throughout the sequence with one exception, and these produce balanced samples of small mammal faunas in the habitat. The lack of bias in the small mammal faunas allow the interpretation of local environments, showing that partial steppe and arid conditions existed during deposition of the lowermost levels of the Middle Palaeolithic in Karain Cave and that these shifted into more temperate and wooded habitat in the upper levels. Evidence from the side chamber indicates some differences, with a more open grassy environment. In the Mediterranean part of Anatolia the temperate and moist conditions in the Middle Palaeolithic were superseded by more arid conditions in the Upper Palaeolithic, followed by a decrease in steppe conditions during the Epi-Palaeolithic period.     

Mesowear as a means of determining diets in African antelopes

Analysis of dental mesowear is a useful tool to examine dietary strategies in ungulates, and provides a palaeoenvironmental proxy at archaeological and palaeontological sites. We examine the distribution of traditional qualitative mesowear variables amongst 33 species of extant African antelope. We also examine the relationship of our dataset with the original dataset of Fortelius and Solounias (2000). We find that confining mesowear analyses to antelope species alone reduces their discriminating power relative to that found in analyses using a broader range of taxa. Variability in mesowear scores along the toothrow suggest that different teeth do not wear equivalently over an individual’s life-time, so it is important to confine comparisons to individual tooth positions for palaeodietary classifications. Mesowear scores from the third upper molar were found to have the greatest discriminating power. Frugivores displayed unique mesowear signatures, suggesting that this trophic guild should be taken into consideration separately in future mesowear analyses. These results have implications which can improve the application and the discriminatory power of mesowear analyses for the determination of the palaeodiets of extinct taxa, and, by extension, their palaeoenvironments.     

Canal projects in the isthmus of Panama and adjacent regions

This article examines some of the problems of studying patterns of internal trading and the operation of periodic market centres in the context of seventeenth‐century Scotland. The changing distribution of periodic market centres throughout the century is discussed, and the difficulties of moving from a theoretical framework based on networks of authorised centres, towards the one which existed in practice, is examined by means of a case study from Perthshire.     

Upland agriculture and environmental risk: a new model of upland land-use based on high spatial-resolution palynological data from West Affric, NW Scotland

Marginality and climatic determinism are common themes in upland archaeology, particularly in northern Britain, but there is increasing evidence to challenge these assumptions, notably in the palynological record. An alternative model for land-use in a highland valley is developed using three high spatial-resolution pollen sequences from north-west Scotland. In spatial terms, land-use was shaped by the landscape but also structured to make the most productive use of the small, fragmented areas of better soil in a peat-dominated environment. Climate change alone provides an inadequate explanation for land-use dynamics. A combination of careful site selection, resource management, and social interactions buffered farmers from risks posed by upland conditions, whilst allowing the flexibility to respond to opportunities created by environmental and socio-economic change, particularly during the early Bronze Age, Bronze Age/Iron Age transition, Iron Age and ‘Little Ice Age’. Implications for the perception of upland farming, for the prediction of responses to environmental risk, and for the expected character and survival of archaeological evidence for past upland and mountain-farming systems are evaluated.     

The environmental context of a prehistoric rock carving on the Bjäre Peninsula,Scania, southern Sweden

Palaeoecological analysis of peat deposits from a small bog at Lingården, southern Sweden, have been used to examine the nature and timing of vegetation changes and anthropogenic activity associated with a nearby rock carving located close to the edge of the wetland. This study is the first of its type to investigate the environmental context of rock carvings in southern Sweden. Debate has tended to focus on chronology and iconography, with little consideration of the environmental relationships of rock carvings and how vegetation may help construct a site within its surrounding landscape. The pollen evidence from Lingården demonstrates that the rock carving was located in an isolated semi-wooded setting during the late Bronze Age. This is in stark contrast to several other pollen studies from the Bjäre Peninsula that record widespread woodland clearance and agricultural activity from the late Neolithic–Bronze Age transition. The results of this study support hypotheses that suggest complex rock carvings, such as Lingården, were separated from settled areas. This sense of separation and isolation is reinforced by the vegetation surrounding the rock carving. This paper also discusses the relationship between charcoal in the pollen sequence and evidence that the decorated outcrop had been burnt.     

The Prehistoric Exploration and Colonization of Fuego-Patagonia

The main goal of this paper is to review the earliest archaeological evidence for the presence of humans in Fuego-Patagonia. The paleoenvironmental and paleoclimatic framework is briefly introduced, followed by a discussion of its relevance to understanding the exploration and colonization of Fuego-Patagonia. Technological and faunal evidence from a number of sites from the southern extreme older than 10,000 B.P. is analyzed. This leads to the conclusion that an early entry, at least 12,000 years old, appears best to accommodate the available chronological evidence. On the other hand, data from the Northern fringes of Patagonia clearly suggest an earlier human colonization.     

Pollen and non-pollen palynomorphs in organic residue from the hoard of ancient Vani (western Georgia)

An investigation of pollen and non-pollen palynomorphs in the organic material in bronze objects found in Vani provides evidence that, in the first half of the first century BC, the climate of the area was cooler and much more humid than nowadays. The local population was engaged in cattle-breeding and agriculture, and both viticulture and horticulture were also well developed. The analysis of the contents of an oil lamp showed that the lamp was in use for a long time and was filled with flax oil. Large pieces of beeswax found in the hoard provide evidence of the existence of local bronze-casting industry. The palynological studies of the recent and fossil soil of Vani have shown that only in soil spectra large quantities of spores of various fungi were found, which distinguishes them from the domestic dust spectra. On the basis of this argument it was established that most part of the studied fossil material is not contaminated by the soil where the hoard of bronze objects was buried.     

Palaeoenvironmental and chronological investigations of the Magdalenian sites of Goyet Cave and Trou de Chaleux (Belgium), via stable isotope and radiocarbon analyses of horse skeletal remains

Trou de Chaleux and Goyet are caves situated less than 30 km apart in Belgium that contain stratified Magdalenian artefacts and butchered faunal remains. Published radiocarbon dates suggest that both sites were contemporaneously occupied during to the Late-glacial interstadial. It has previously been suggested that the Trou de Chaleux Late-glacial faunal remains might be slightly older than those at Goyet Cave, and that Trou de Chaleux has two phases of occupation during the Late-glacial interstadial. However, the limited number of radiocarbon dates currently available makes it impossible to determine whether the sites are truly contemporaneous, and the assessment of their absolute chronologies is complicated by a plateau in the calibration curve. In this paper, bone collagen δ¹³C and δ¹⁵N signatures of horse bones from the two sites are used to reconstruct local palaeoenvironments. We hypothesise that if occupations at the two sites were contemporaneous, the horse collagen δ¹³C and δ¹⁵N isotope signatures from both sites will be similar, since comparable carbon and nitrogen isotopic values would reflect similar diets, ecologies and environments. To provide clear dating parameters, new AMS radiocarbon determinations are also presented. Results show that horse collagen δ¹³C and δ¹⁵N isotope signatures at the two sites are different, indicating that the populations were not subject to similar diets, ecologies and environments. The new radiocarbon dates confirm that the horse bones from Trou de Chaleux date to the Late-glacial interstadial, but they also show that in Goyet Cave Horizons 1 and 2, older horse remains dating to ca. 32?000–27?000 ¹⁴C yr BP are mixed with Late-glacial horse remains. The δ¹⁵N values of the Goyet Cave horse bones radiocarbon dated to the Pleniglacial are substantially higher than those that have Late-glacial radiocarbon dates. Therefore, we now hypothesise that the majority of the horse bones isotopically analysed from Goyet Cave Horizon 1 are Pleniglacial in age. Statistical analysis of the radiocarbon dates indicates that the Late-glacial occupation at the two sites was contemporaneous, and that while there may appear to be two phases of occupation at Trou de Chaleux, this may be an artefact of the radiocarbon calibration curve.     

First record of the trace fossil Protovirgularia from the Middle Permian of southeastern Gondwana (southern Sydney Basin,Australia)

LUO, M. &; SHI G.R., February 2017. First record of the trace fossil Protovirgularia from the Middle Permian of southeastern Gondwana (southern Sydney Basin, Australia). Alcheringa 0, 000–000. ISSN 0311-5518.

This study reports the first examples of well-preserved chevronate trails referable to Protovirgularia longespicata De Stefani, 1885 Stefani, DE.C., 1885. Studi paleozoologici sulle creta superiore e media dell' Apennino settentionale. Atti della Reale Accademia dea Lincei, Memorie 22, 101?134. [Google Scholar] from the early Middle Permian (Roadian) upper Wandrawandian Siltstone of the southern Sydney Basin, southeastern Australia. The highly meandering trace with closely spaced, papillate chevrons is interpreted to have been produced by the locomotion-feeding behaviour of certain protobranch bivalves in an offshore environment. The dense trails occurring on the upper bedding planes of pebbly siltstone may represent a gregarious lifestyle, where junior and senior individuals of the trace-maker bivalves coexisted while moving within sediments. The Wandrawandian Protovirgularia also represents the first known occurrence of this ichnotaxon from a glaciomarine environment in the Permian eastern Gondwana. The global record of Protovirgularia occurrences suggests that these trails had a wide environmental distribution since the Cambrian, and there is no obvious difference in the environmental distribution of Protovirgularia after the Permian?Triassic transition.

Mao Luo [m.luo@deakin.edu.au] and G.R. Shi [guang.shi@deakin.edu.au], Centre for Integrative Ecology, School of Life and Environmental Sciences, Deakin University, Burwood Campus, 221 Burwood Highway, VIC 3125, Australia.     

The Pleistocene art of Asia

While the Pleistocene art of Europe has been described, discussed, analyzed and explained in thousands of publications, that of Asia has attracted almost no interest at all. This paper is a brief summary of all known Ice Age art of Asia, both rock art and portable art. The current evidence is critically reviewed, region by region, and hundreds of specimens purported to be art are rejected by the author. Those considered to be authentic are often extremely isolated, in both time and space. It is argued that this record can only be explained effectively as having been greatly distorted by several factors. The geographical distribution, for instance, is clearly conditioned by such factors as intensity of research activities and local preservation conditions. Thus the pronounced paucity of available evidence is, at least in part, imposed by taphonomic biases of various types.     

Lagostomus maximus (Desmarest) (Rodentia,Chinchillidae), the extant plains vizcacha in the Late Pleistocene of Uruguay

Ubilla, M. & Rinderknecht, A., April 2016. Lagostomus maximus (Desmarest) (Rodentia, Chinchillidae), the extant plains vizcacha in the Late Pleistocene of Uruguay. Alcheringa 40, xxx–xxx. ISSN 0311-5518

The extant plains vizcacha, Lagostomus maximus, is described from the Late Pleistocene (Dolores Formation) of Uruguay based on an almost complete articulated skeleton. It is compared with the nominally extinct Pleistocene species of the genus. An AMS ¹⁴C taxon-age is determined for L. maximus at 11 879 ± 95 years BP (cal. BP 13 898–13 941). Lagostomus maximus is absent from modern mammal communities in Uruguay, and no Holocene evidence is available. Because L. maximus exhibits remarkable sexual and ontogenetic dimorphism, we examined a range of juvenile, sub-adult and adult male and female specimens. It is not possible to differentiate the articulated Pleistocene fossil from sub-adult specimens of L. maximus based on this sample. Moreover, the skull characteristics, including a broad vertical ramus of the zygomatic arch, semi-circular temporal crest and short robust sagittal crest, most closely resemble extant female individuals. Molar size is non-predictive for ontogenetic stage or body mass because it reaches stability during early adulthood. Other fragmentary skull remains are herein assigned to L. sp. cf. L. maximus. Lagostomus cavifrons from the Pleistocene of Argentina is considered synonymous with L. maximus. Its character states concur with the range of intraspecific variability and it has been established on a young adult or adult male individual. Likewise, the other Argentinean Pleistocene species based on incomplete mandibles, L. angustidens, L. striatus, L. heterogenidens, L. egenus, L. minimus and L. debilis, concur with ontogenetic morphs and are here assigned to Lagostomus sp. The ecological preferences of extant L. maximus infer open arid or semi-arid landscapes for the latest Pleistocene of southern Uruguay. This hypothesis is reinforced by the coeval presence of Microcavia, Galea and small camelids in the same strata. The Last Glacial Maximum likely promoted this environmental setting. Latest Pleistocene or early Holocene climatic change might have facilitated local extinctions and/or range shifts among this mammal fauna.

Martín Ubilla [martinubilla@gmail.com], Facultad de Ciencias, Universidad de la Republica, Iguá 4225, 11400, Montevideo, Uruguay; Andrés Rinderknecht [apaleorinder@yahoo.com], Museo Nacional de Historia Natural, Paleontología, 11000, Montevideo, Uruguay.