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1.
The majority of the neolithic pottery from Dhar Tichitt and Oualata bears abundant plant impressions on its surface. The present study involves direct examination of these impressions and comparsion with a control series in the laboratory. The criteria for differentiation between impressions made by wild and cultivated Pennisetum are clearly defined. In the pottery from Oued Chebbi (Dhar Oualata), the existence of many many impressions of pearl millet ( Pennisetum), including both wild and cultivated strains, is confirmed. It is concluded that the area around Dhar Tichitt and Oualata belongs to a non-centre zone of origin (Harlan 1975) and that, ca 3000 bp, its inhabitants knew how to use cultivated strains in an area where wild strains were also found in some abundance.
Résumé La céramique néolithique des dhars Tichitt et Oualata présente une abondance d'empreintes végétales en surface. La présente étude—basée sur la lecture directe des empreintes sur la céramique—s'appuye sur une série de référence fabriquée en laboratoire. Les critères de différenciation, dans le genrePennisetum, des empreintes de formes sauvages et de formes cultivées sont clairement précisées. L'existence, dans les céramiques de Oued Chebbi, de nombreuses empreintes de mil du genrePennisetum et, parmi celles-ci, de formes cultivées, est affirmée. Les différentes analyses d'empreintes permettent de penser que le secteure des dhars Tichitt et Oualata appartient à la zone d'origine non-centre définie par J. Harlan (1975) et qu'aux alentours de 3000 ans bp, ses habitants savaient exploiter des formes cultivées dans un cadre où les populations de forme sauvage avaient une certaine abondance. 相似文献
2.
The pathways leading to the adoption of cereal cultivation and pastoralism in West Africa are poorly understood. In order to elucidate the transition to food production during the Late Stone Age in Mali’s Tilemsi Valley samples of ancient and modern human and animal remains were selected for carbon and oxygen isotope analysis. Our results indicate the inhabitants of Karkarichinkat Nord (KN05) consumed considerable quantities (85%) of carbon derived from C 4 plants, either directly in the form of C 4 grasses such as wild Panicum sp. and possibly domestic Pennisetum sp. or indirectly through the consumption of C 4 grazers such as Bos sp. and Ovis sp. 相似文献
3.
In the present study, the first archaeometric data on an ample selection of intentionally coloured (or decoloured) Early Roman glass (1st–2nd centuries AD) from the Archaeological Museum of Adria (Rovigo, Italy) are reported. The analysed samples are 61 in total, both transparent and opaque, and were characterised from the textural (SEM-EDS), mineralogical (XRPD) and chemical (XRF, EPMA, LA-ICP-MS) points of view. This combined approach allowed us to identify the raw materials and production technologies employed in the manufacture of glassware. Results for the transparent samples show that they are all silica-soda-lime glasses. Most of them, independently of colour, have compositions close to those of typical Roman glass, produced with natron as flux. No relationships were identified among chemical compositions, types or production techniques, but a dependence on bulk composition was identified for some particular colours, revealing the careful and intentional selection of raw materials. This is the case of Sb-colourless glass, produced with sand of high purity, a group of intensely coloured objects, mainly emerald green and black, produced with soda ash as flux, and some blue examples produced with various sources of sand or soda ash as flux. Two main types of opacifiers were identified for the opaque samples: calcium antimonate for white, mauve and blue glasses, and lead antimonate for the yellow ones; in one case, a yellow lead-tin antimonate was also identified. As regards the opaque glasses, most of the samples opacified with calcium antimonate are silica-soda-lime in composition, similar to the typical Roman glass. Instead, samples opacified with lead and/or lead-tin antimonates are lead glasses, suggesting different production technologies. 相似文献
4.
Palaeolimnadiopsis bassi sp. nov. is described from the mid-Triassic Hawkesbury Sandstone of the Sydney Basin, New South Wales. It is distinguished from other species of the genus by its paired growth lines, moderately large size, nonterminal umbo, and small larval valve. Macrolimnadiopsis, Pteriograpta, and Limnadia (Falsisca) are considered to be synonymous with Palaeolimnadiopsis, and Belgolimnadiopsis with Euestheria. 相似文献
5.
Soapstones (talc-bearing schists) and garnet chlorite schist artifacts found in Medieval archaeological sites of Tuscany (Central Italy) were classified, in order to define provenance of the different lithotypes. In Italy and throughout the Central Europe, these greenschist facies metamorphic rocks are generally known, among the archaeologists, as the pietra ollare from the Alps. The investigated Tuscan archaeological sites are between 6 and 13th century AD and were strictly linked, in that period, to the well defined network trade running along Tyrrhenian coast. Samples come from little containers used for cooking and preserving food and showing traces of lathe manufacturing at their sidewalls. According to modal mineralogy, petrographic texture, XRD, SEM-EDS and whole rock chemistry we recognised, among the 18 studied findings, three different petrographic groups of the Alpine pietra ollare. (i) Fine grained magnesite talc schists (i.e. soapstones) from outcrops of the Central Alps located in the Valchiavenna area. (ii) Garnet chlorite schists from the Valle d'Aosta region. (iii) Amphibole talc schists (i.e. soapstones) with a provenance in the Ticino area. It is worth noting that artifacts of pietra ollare lithotypes from the Western Alps (i.e. garnet chlorite schists and amphibole talc schists) were not detected in the archaeological sites of the Middle Adriatic coast of the Central Italy, belonging to the same Medieval time interval. This emphasises that the petrographic groups of pietra ollare from the Alps spread to the south of the Po Plain according to Western and Eastern trade along the Italian Peninsula, using respectively, the Tyrrhenian and the Adriatic Sea commercial routes. 相似文献
6.
Z heng, D., W ang, H., N el, A., D ou, L., D ai, Z., W ang, B. & Z hang, H. 27 June 2019. A new damsel-dragonfly (Odonata: Anisozygoptera: Campterophlebiidae) from the earliest Jurassic of the Junggar Basin, northwestern China. Alcheringa XX, X–X. ISSN 0311-5518.A new genus and species of campterophlebiid damsel-dragonfly, Jurassophlebia xinjiangensis gen. et sp. nov., is described from the Lower Jurassic Badaowan Formation in the Junggar Basin, northwestern China. Jurassophlebia differs from all other campterophlebiid genera in having PsA in the same orientation as the distal branch of AA, and in its uniquely open subdiscoidal cell with very acute apical angle in the hind wing. The new discovery adds to the Asian diversity of damsel-dragonflies in the earliest Jurassic. Daran Zheng* [dranzheng@gmail.com], He Wang [hwang@nigpas.ac.cn], Bo Wang [bowang@nigpas.ac.cn], and Haichun Zhang [hczhang@nigpas.ac.cn], State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology and Center for Excellence in Life and Paleoenvironment, Chinese Academy of Sciences, 39 East Beijing Road, Nanjing 210008, PR China; André Nel [anel@mnhn.fr], Institut de Systématique, Évolution, Biodiversité, ISYEB-UMR 7205-CNRS, MNHN, UPMC, EPHE, Muséum national d’Histoire naturelle, Sorbonne Universités, 57 rue Cuvier, CP 50, Entomologie, F-75005, Paris, France; Longhui Dou [345317122@qq.com], Comprehensive Geology Exploration Team, Xinjiang Coalfield Geology Bureau, West Mountain Road, Ürümqi 830000, PR China; Zhenlong Dai [286321388@qq.com], No.9 Geological Team, Xinjiang Bureau of Geology and Mineral Resources, Ürümqi 830011, PR China; Daran Zheng also affiliated with Department of Earth Sciences, The University of Hong Kong, Hong Kong Special Administrative Region, PR China. 相似文献
7.
O’G orman, J.P., O tero, R.A. & H iller, N., 2014. A new record of an aristonectine elasmosaurid (Sauropterygia, Plesiosauria) from the Upper Cretaceous of New Zealand: implications for the Mauisaurus haasti Hector, 1874 Hector, J., 1874. On the fossil Reptilia of New Zealand. Transactions and Proceedings of the New Zealand Institute 6, 333–358. [Google Scholar] hypodigm. Alcheringa 38, 504–512. ISSN 0311-5518An indeterminate aristonectine elasmosaurid is recorded from a lower Maastrichtian bed of the Conway Formation, Waipara River, South Island, New Zealand. The described specimen (CM Zfr 104), previously considered part of the hypodigm of Mauisaurus haasti, came from the upper part of the Alterbidinium acutulum biozone, the same zone from which the only well-known aristonectine from New Zealand, Kaiwhekea katiki, is recorded. The cervical vertebrae of CM Zfr 104 have the same distinctive features (i.e., with extremely broad rather than long centra) as those from previously recorded juvenile aristonectines from Argentina, Chile and Antarctica. This new record is congruent with the biogeographic relationships of Cretaceous marine amniotes from the Weddellian Palaeobiogeographic Province (i.e., Patagonia, western Antarctica, New Zealand and southeastern Australia). Therefore, this type of vertebra is regarded as a distinctive feature of the Weddellian aristonectine elasmosaurids. José P. O’Gorman [joseogorman@fcnym.unlp.edu.ar], División Paleontología Vertebrados, Museo de La Plata, Universidad Nacional de La Plata, Paseo del Bosque s/n., B1900FWA, La Plata, Argentina; [CONICET (Consejo Nacional de Investigaciones Científicas y Técnicas)]; Rodrigo A. Otero [paracrioceras@gmail.com], Red Paleontológica U-Chile. Laboratorio de Ontogenia y Filogenia, Departamento de Biología, Facultad de Ciencias, Universidad de Chile, Av. Las Palmeras 3425, Santiago, Chile; Norton Hiller, [norton.hiller@canterbury.ac.nz], Department of Geological Sciences, University of Canterbury, PB 4800, Christchurch, 8001, New Zealand and Canterbury Museum, Rolleston Avenue, Christchurch, New Zealand, 8013. 相似文献
8.
During the Upper Paleolithic, lithic variability is one of the most important keys to recognize hunter-gatherer behavior, technology, ecology, and social dynamics. The origin and expansion of Gravettian populations in Eurasia has been seen as one of the most critical episodes in human evolution, argued to be the first clear evidence of the so-called polymorphism among modern human populations. In the case of southern Iberian Peninsula, recent data have shown a new regional and diachronic organization for the Gravettian occupation in this region. Therefore, the interpretation of such variability is one of the most important questions, and functional analysis is a fundamental proxy to recognize human technological, settlement and ecological adaptations as major factors for this polymorphism. This study focused on lithic use-wear analysis of the Early Gravettian of Vale Boi (southern Portugal), in order to understand lithic technological organization and variability within and between occupations at the site. Results show similar patterns between assemblages, showing that different materials were worked at the site, although showing reduced time of work, low variability and percentage of pieces used. Unlike other Gravettian contexts in southern Iberia, the Early Gravettian from Vale Boi is characterized by some variability of backed points, marked by the predominance of bipointed double-backed bladelets. Functional analysis of the Early Gravettian lithic industries of Vale Boi provide a new insight to interpret human technology and settlement strategy during the onset of Upper Paleolithic industries in western Eurasia. 相似文献
9.
C ao, Y., S hih, C., B ashkuev, A. & R en, D., September 2015. Revision and two new species of Itaphlebia (Nannochoristidae: Mecoptera) from the Middle Jurassic of Inner Mongolia, China. Alcheringa 40, XX–XX. ISSN 0311-5518. Two new species of Itaphlebia Sukatsheva, 1985, Itaphlebia longiovata and I. amoena (Nannochoristidae Tillyard, 1917), are described and illustrated from the Middle Jurassic Jiulongshan Formation of Daohugou, Inner Mongolia, China. Previously described Middle Jurassic nannochoristid genera, Chrysopanorpa Ren in Ren et al., 1995 and Protochoristella Sun, Ren & Shih, 2007b, together with Stylopanorpodes and Netropanorpodes Sun, Ren & Shih, 2007a (originally assigned to Mesopanorpodidae) are revised and considered to be synonyms of Itaphlebia. The following tentative species synonymies are proposed: Protochoristella formosa and Stylopanorpodes eurypterus = Itaphlebia ruderalis (Ren in Ren et al., 1995), comb. nov.; Netropanorpodes sentosus = I. jeniseica Novokshonov, 1997a, syn. nov.; and Protochoristella polyneura = I. multa Novokshonov, 1997a, syn. nov. Netropanorpodes decorosus is transferred to Itaphlebia. These new species, new material and the new combinations broaden the diversity of the Itaphlebia in mid-Mesozoic ecosystems and provide new characters enabling amendment of the generic diagnosis. YiZi Cao [easycaoyinzi@aliyun.com], ChungKun Shih [chungkun.shih@gmail.com] and Dong Ren [rendong@mail.cnu.edu.cn], College of Life Sciences, Capital Normal University, Xisanhuanbeilu 105, Haidian District, Beijing, PR China 100048; Alexei Bashkuev [fossilmec@gmail.com], Borissiak Paleontological Institute, Russian Academy of Sciences, Profsoyuznaya st. 123, Moscow 117997, Russia. 相似文献
10.
A field survey revealed that Byzantine and Early Arab (ca. 5th to 8th century C.E.) agricultural systems in the semi-arid region of the Shephelah (central Israel) were similar to runoff agricultural systems in the arid region of the Negev (southern Israel). This similarity led to the hypothesis that systems in the Shephelah also function as runoff farms. This hypothesis is not trivial since runoff values in semi-arid regions are generally low due to intensive but short rainfall events, and due to the presence of sink patches that absorb runoff on slope surface. The aim of the current research is to examine whether runoff potential in a representative agricultural system in the Shephelah is sufficient for sustaining runoff farming. A geoarchaeological field survey and digital terrain analysis show that large Nari (calcrete) outcrops on the footslopes generate high runoff values that improve water potential. Hydrological simulations and calculations show that 230 mm of direct rainfall generates a water potential equivalent to 300 mm of direct rainfall. In view of these results, it is reasonable to conclude that the presence of Nari enabled runoff agricultural farming in the Shephelah region, even in drought years. 相似文献
11.
In Level XII of Bolomor Cave (Valencia, Spain) modifications have been observed on some of the bone fragments that make up the faunal record. These alterations consist of small notches located on the oblique fracture angles of some bones. The frequency at which these modifications appear in the assemblage has obliged to plan several experimental series to know the process that causes them. To be more exact, this study aims to verify whether these small chips are the result of trampling. For this purpose, two experimental series have been developed. The first of which has the objective of differentiating between the variables related to the original state of the bone (green, semi-dry and dry) and the second is aimed at reproducing the modifications observed in the archaeological set, taking into account the data obtained in the previous series. Following these experiments, the appearance of small notches is observed on the oblique fracture angles of some bones in semi-dry state. These resulting chips are similar to those documented in Bolomor Cave, Level XII. Therefore, it is deduced that trampling is the principle cause of these modifications in the bone record. This fact has important archaeological implications, as the spatial distribution of this modification can provide information about the intrasite movements of the human groups. 相似文献
12.
SHI, C.F., WANG, Y.J., YANG, Q. & REN, D., September 2012. Chorilingia (Neuroptera: Grammolingiidae): a new genus of lacewings with four species from the Middle Jurassic of Inner Mongolia, China. Alcheringa 36, 311–320. ISSN 0311-5518. A new grammolingiid genus, Chorilingia containing four new species ( C. euryptera, C. parvica, C. translucida and C. peregrina) is described and illustrated from the Jiulongshan Formation at Daohugou, Inner Mongolia, China. The new genus is differentiated mainly on the first branch of vein Rs (Rs1) separating distal to the forks of both CuA and CuP. A key to species of the genus is provided. 相似文献
13.
C hamberlain, P.M., T ravouillon, K.J., A rcher, M. & H and, S.J., November 2015. Kutjamarcoot brevirostrum gen. et sp. nov., a new short-snouted, early Miocene bandicoot (Marsupialia: Peramelemorphia) from the Kutjamarpu Local Fauna (Wipajiri Formation) in South Australia. Alcheringa 40, XX–XX. ISSN 0311-5518. A new bandicoot species, Kutjamarcoot brevirostrum gen. et sp. nov. (Peramelemorphia), is described here from the Leaf Locality, Kutjamarpu Local Fauna (LF), Wipajiri Formation (South Australia). The age of the fossil deposit is interpreted as early Miocene on the basis of biocorrelation between multiple species in the Kutjamarpu LF and local faunas from the Riversleigh World Heritage Area (WHA). Kutjamarcoot brevirostrum is represented by isolated teeth and three partial dentaries and appears to have been short-snouted with an estimated mass of 920 g. Phylogenetic analyses place K. brevirostrum in a clade with extant Australian bandicoots and the extinct Madju, but potentially exclude the extant New Guinean bandicoots. Morphometric analysis infers close similarity between K. brevirostrum and species of Galadi in both size and rostral length. They, thus, potentially occupied compatible ecological niches with competitive exclusion perhaps explaining geographical segregation between these broadly coeval lineages. Philippa M. Chamberlain [philippa.chamberlain@uq.net.au], School of Earth Sciences, University of Queensland, St Lucia, Queensland 4072, Australia; Kenny J. Travouillon [kenny.travouillon@museum.wa.gov.au; kennytravouillon@hotmail.com], Western Australian Museum, Locked Bag 49, Welshpool DC, WA, 6986, and School of Earth Sciences, University of Queensland, St Lucia, Queensland, 4072, Australia; Michael Archer [m.archer@unsw.edu.au] and Suzanne J. Hand [s.hand@unsw.edu.au], School of Biological, Earth and Environmental Sciences, University of New South Wales, New South Wales, 2052, Australia. 相似文献
14.
R ozefelds, A.C., D ettmann, M.E., C lifford, H.T. & L ewis, D., August 2015. Macrofossil evidence of early sporophyte stages of a new genus of water fern Tecaropteris (Ceratopteridoideae: Pteridaceae) from the Paleogene Redbank Plains Formation, southeast Queensland, Australia. Alcheringa 39,. ISSN 0311-5518. Water fern foliage is described from the Paleogene Redbank Plains Formation at Dinmore in southeast Queensland. The material, which is based upon leaf impressions, records early sporophyte growth stages. The specimens occur at discrete levels in clay pits at Dinmore, and the different leaf stages present suggest that they represent colonies of young submerged plants, mats of floating leaves, or a mixed assemblage of both. The leaf material closely matches the range of variation evident in young sporophytes of Ceratopteris Brongn., but in the complete absence of Cenozoic fossils of the spore genus Magnastriatites Germeraad, Hopping & Muller emend. Dettmann & Clifford from mainland Australia, which are the fossil spores of this genus, it is referred to a new genus, Tecaropteris. The record of ceratopterid-like ferns adds significantly to our limited knowledge of Cenozoic freshwater plants from Australia. The geoheritage significance of sites, such as Dinmore, is discussed briefly. Andrew C. Rozefelds [andrew.rozefelds@qm.qld.gov.au], Queensland Museum GPO Box 3300, South Brisbane, 4101, Queensland, Australia and School of Earth Sciences, University of Queensland, St Lucia, 4072, Queensland, Australia; Mary Dettmann [mary.dettmann@qm.qld.gov.au], H. Trevor Clifford [trevor.clifford@qm.qld.gov.au] and Debra Lewis [debra.lewis@qm.qld.gov.au], Queensland Museum, GPO Box 3300, South Brisbane, 4101, Queensland, Australia. 相似文献
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