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535 results for “quaternary”
FIGURE 7 in Quaternary foraminifera and mollusc assemblages on the southwestern African shelf
FIGURE 7. Mean relative abundances of mollusc (bivalves on the left and gastropods on the right) shells in the Walvis Bay-Lüderitz cores.
FIGURE 5 in Quaternary foraminifera and mollusc assemblages on the southwestern African shelf
FIGURE 5. Relative abundances (%) of benthic foraminifera in the shelly sandy units 1-3. Mean relative abundances of the major taxa in each unit over all the cores in which the foraminifera species counted are indicated upper right.
FIGURE 1 in Quaternary foraminifera and mollusc assemblages on the southwestern African shelf
FIGURE 1. Outline of Namibia and South Africa with the location of the cores studied. The intervals for the bathymetric lines in the upper left map are 100 m (based on maps provided by Minemakers Australia Pty. Ltd.).
Fig. 1 in New Quaternary remains of terrestrial vertebrates of some caves in Bulgaria
Fig. 1. Skull fragment of a juvenile cave bear found in Kokalenata Cave near Balgarka hut, Stara Planina Mts (26.06.2012).
Raw data sets from Jones et al. 2018 QSR publication: A multi-proxy approach to understanding complex responses of saltlake catchments to climate variability and human pressure: A Late Quaternary case study from south-eastern, Spain
<p>Attached are the raw data sets containing the pollen data, DXR, Grain size and C14 ages from the recent publication: Jones et al. 2018 QSR publication: A multi-proxy approach to understanding complex responses of saltlake catchments to climate variability and human pressure: A Late Quaternary case study from south-eastern, Spain.</p> <p>Note that these data sets do contain hiatuses and a major age-reversal due to erosian which have likely been caused by increased seasonal wetness at the onset of the Holocene. A full explanation is provided in our 2018 publication. If you do wish to use the data, it is essential that you read the publication inorder to interpret the results correctly. We also require that when using this data that you correctly cite it (Bibliographic reference and the doi number of the data set). There were some problems uploading the XRF (geochemical) data sets, so I haven't included these yet, but hopefully will do eventually. </p> <p>Below I have also included the abstract from our publication, which provides an overview of the purpose of our work and a brief summary of the main findings.</p> <p>Abstract of Jones et al. 2018:</p> <p>The article focuses on a former salt lake in the upper Vinalopo Valley in south-eastern Spain. The study spans the Late Pleistocene through to the Late Holocene, although with particular focus on the period between 11 ka cal BP and 3000 ka cal BP (which spans the Mesolithic and part of the Bronze Age). High resolution multi-proxy analysis (including pollen, non pollen palynomorphs, grain size, X-ray fluorescence, and X-ray diffraction) was undertaken on the lake sediments. The results show strong sensitivity to<br> both long term and small changes in the evaporation/precipitation ratio, affecting the surrounding vegetation composition, lake-biota and sediment geochemistry. To summarise the key findings the main general trends identified include: 1) Hyper-saline conditions<br> and low lake levels at the end of the Late Glacial 2) Increasing wetness and temperatures which witnessed an expansion of mesophilic woodland taxa, lake infilling and the establishment of a more perennial lake system at the onset of the Holocene 3) An increase in solar insolation after 9 ka cal BP which saw the re-establishment of pine forests 4) A continued trend towards increasing dryness (climatic optimum) at 7 ka cal BP but with continued freshwater input 5) An increase in sclerophyllous open woody vegetation (anthropogenic?), and increasing wetness (climatic?) is represented in the lake record between 5.9 and 3 ka cal BP 6) The Holocene was also punctuated by several aridity pulses, the most prominent corresponding to the 8.2 ka cal BP event. These events, despite a paucity of well dated archaeological sites in the surrounding area, likely altered the carrying capacity of this area both regionally and locally, particularly during the Mesolithic-Neolithic transition, in terms of fresh water supply for human/animal consumption, wild plant food reserves and suitable land for crop growth.</p>
Text-fig. 3. Rhinoppioides quadrituberculatus MIKO gen. et sp. nov. Above: assumed fragments of legs as seen in body cavity of holotype (Aa – in dorsal view, Ab – in ventral view) and paratype (B, only dorsal view available). Below: speculative reconstruction of legs, assumed segments leg IV in above rows (numbers 1, 3, 5, 7, 12, 13, 14), assumed segments of leg I below (numbers 6, 9, 10). Rest of the segments assumed to belong to legs II and III. Only trochanters III (nr. 8) and IV (nr. 7, 12) undoubtedly belonging to the new species. Bars indicating 50 µm, numbers indicate identity of segments. in Oribatid Mite Fossils From Quaternary And Pre-Quaternary Sediments In Slovenian Caves I.Two New Genera And Two New Species Of The Family Oppiidae From The Early Pleistocene
Text-fig. 3. Rhinoppioides quadrituberculatus MIKO gen. et sp. nov. Above: assumed fragments of legs as seen in body cavity of holotype (Aa – in dorsal view, Ab – in ventral view) and paratype (B, only dorsal view available). Below: speculative reconstruction of legs, assumed segments leg IV in above rows (numbers 1, 3, 5, 7, 12, 13, 14), assumed segments of leg I below (numbers 6, 9, 10). Rest of the segments assumed to belong to legs II and III. Only trochanters III (nr. 8) and IV (nr. 7, 12) undoubtedly belonging to the new species. Bars indicating 50 µm, numbers indicate identity of segments.
Text-fig. 1. Rhinoppioides quadrituberculatus MIKO gen. et sp. nov. A – dorsal view of holotype (prodorsal setae largely missing except right lamellar seta, notogastral setae missing and their insertions not discernable); B – ventral view of holotype (genital and anal valves missing, only insertions of ventral setae visible, gnathosoma missing); C – lateral view of paratype (notogaster missing). Bar indicates 100 µm. For explanation of acronyms see page 31. in Oribatid Mite Fossils From Quaternary And Pre-Quaternary Sediments In Slovenian Caves I.Two New Genera And Two New Species Of The Family Oppiidae From The Early Pleistocene
Text-fig. 1. Rhinoppioides quadrituberculatus MIKO gen. et sp. nov. A – dorsal view of holotype (prodorsal setae largely missing except right lamellar seta, notogastral setae missing and their insertions not discernable); B – ventral view of holotype (genital and anal valves missing, only insertions of ventral setae visible, gnathosoma missing); C – lateral view of paratype (notogaster missing). Bar indicates 100 µm. For explanation of acronyms see page 31.
Text-fig. 19. Geological position of the flora of Roudníky in the cores Ru 43 and Ru 60 and radiometric dating (from Bellon et al. 1998, adapted). 1 – xenolites intercalated with claystone, 2 – claystone, 3 – pyroclastite, 4 – tuffaceous claystone, 5 – olivine basalt, 6 – Quaternary cover. in Mid-Latitude Palaeogene Floras Of Eurasia Bound To Volcanic Settings And Palaeoclimatic Events - Experience Obtained From The Far East Of Russia (Sikhote-Alin') And Central Europe (Bohemian Massif)
Text-fig. 19. Geological position of the flora of Roudníky in the cores Ru 43 and Ru 60 and radiometric dating (from Bellon et al. 1998, adapted). 1 – xenolites intercalated with claystone, 2 – claystone, 3 – pyroclastite, 4 – tuffaceous claystone, 5 – olivine basalt, 6 – Quaternary cover.
Text-fig. 11. Geological map south of the Nel'ma Bay. 1 - granodiorite (Early Palaeogene); 2 – Eocene andesitic and dacitic tuff with plant-bearing argillitic lenses; 3 – Late Eocene to Early Miocene andesite-basalt (Kizi Volcanic Group); 4 – tuffogenous sedimentary plant-bearing lenses with plant fossils; 5 – Dacite neck (Early Oligocene) 1 km south of the Dembi Bay; 6 – Pliocene pebbles and conglomerates; 7 – Plateaubasalts (Sovgavan' Formation, Late Neogene–Quaternary); 8 – Quaternary alluvial deposits; 9 – localities with fossil plants: a – Sonje, b – Bui, c – Dembi. in Mid-Latitude Palaeogene Floras Of Eurasia Bound To Volcanic Settings And Palaeoclimatic Events - Experience Obtained From The Far East Of Russia (Sikhote-Alin') And Central Europe (Bohemian Massif)
Text-fig. 11. Geological map south of the Nel'ma Bay. 1 - granodiorite (Early Palaeogene); 2 – Eocene andesitic and dacitic tuff with plant-bearing argillitic lenses; 3 – Late Eocene to Early Miocene andesite-basalt (Kizi Volcanic Group); 4 – tuffogenous sedimentary plant-bearing lenses with plant fossils; 5 – Dacite neck (Early Oligocene) 1 km south of the Dembi Bay; 6 – Pliocene pebbles and conglomerates; 7 – Plateaubasalts (Sovgavan' Formation, Late Neogene–Quaternary); 8 – Quaternary alluvial deposits; 9 – localities with fossil plants: a – Sonje, b – Bui, c – Dembi.
Text-fig. 2. Main geological structures of the eastern slope of the Sikhote-Alin' ridge and main plant-bearing localities of the Cenozoic floras. I – Mesozoic folded basement; II – East Sikhote-Alin' Volcanic Belt (Late Cretaceous–Early Palaeocene); III – Near-Shore Basaltic Volcanic Belt (Eocene–Early Miocene); IV – Udyl Basin (Cenozoic); V – Late Neogene to Quaternary plateaubasalts; Va – Sovgavan plateau; Vb – Samarga plateau; Vc – Bikin plateau. 1 – Malo-Mikhaylovka; 2 – Siziman; 3 – Sjurkum; 4 – Botchi; 5 – Dembi; 6 – Bui; 7 – Sonje; 8 – Takhobe; 9 – Amgu; 10 – Velikaya Kema; 11 – Zerkal'naya (former Tadushi). in Mid-Latitude Palaeogene Floras Of Eurasia Bound To Volcanic Settings And Palaeoclimatic Events - Experience Obtained From The Far East Of Russia (Sikhote-Alin') And Central Europe (Bohemian Massif)
Text-fig. 2. Main geological structures of the eastern slope of the Sikhote-Alin' ridge and main plant-bearing localities of the Cenozoic floras. I – Mesozoic folded basement; II – East Sikhote-Alin' Volcanic Belt (Late Cretaceous–Early Palaeocene); III – Near-Shore Basaltic Volcanic Belt (Eocene–Early Miocene); IV – Udyl Basin (Cenozoic); V – Late Neogene to Quaternary plateaubasalts; Va – Sovgavan plateau; Vb – Samarga plateau; Vc – Bikin plateau. 1 – Malo-Mikhaylovka; 2 – Siziman; 3 – Sjurkum; 4 – Botchi; 5 – Dembi; 6 – Bui; 7 – Sonje; 8 – Takhobe; 9 – Amgu; 10 – Velikaya Kema; 11 – Zerkal'naya (former Tadushi).
Fig. 8 in Taxonomic, biogeographic, and taphonomic reassessment of a large extinct species of paca from the Quaternary of Brazil
Fig. 8. Taphonomic aspects of the extinct paca Cuniculus rugiceps (Lund, 1837) from Cuvieri Cave (minimum age of ~30 ky), Lagoa Santa. A. Stratigraphic distribution of plotted specimens (specimens recovered by sieving are not represented) relative to the flowstone dated. Clusters of dots in the lower layers of Locus 3A and 3B represent bones preserved in anatomical association. Black arrow indicates the position of the 8 m deep pitfall. B. Excavation record of specimens in anatomical association (B1) with schematic indication of bone elements (B2). C. Left femur in posterior view (CVL3P13911), showing bone modifications caused by rodent gnawing (arrows; see the remarkable circular opening of diaphysis). D. Right innominate in medial view (CVL3B2165a), showing initial cracking caused by weathering (arrows).
Fig. 7 in Taxonomic, biogeographic, and taphonomic reassessment of a large extinct species of paca from the Quaternary of Brazil
Fig. 7. Distribution of the extinct Cuniculus rugiceps and extant species of Cuniculus and its fossil record. References in the text.
Fig. 3 in Taxonomic, biogeographic, and taphonomic reassessment of a large extinct species of paca from the Quaternary of Brazil
Fig. 3. Fossils of the extinct paca Cuniculus rugiceps (Lund, 1837) from Cuvieri Cave (minimum age of ~30 ky). A. Fossil 7 (CVL3 P13160), dorsal portion of the skull in dorsal (A1), ventral (A2), right lateral (A3), left lateral (A4), and posterior (A5) views. B. Fossil 8 (CVL3 P13168), right zygomatic arch in dorsal (B1), lateral (B2), and anterior (B3) views. C. Fossil 4 (CVL3 P13342), right dentary in lateral (C1) and medial (C2) views. D. Fossil 2 (CVL3 P11221), anteroventral face of the mentonian region of a right dentary showing rugosities. White arrows, discrete notch on the dorsal edges of the orbits; black arrows, large and deep notch on the bottom of the infraorbital foramen.
Fig. 1 in Taxonomic, biogeographic, and taphonomic reassessment of a large extinct species of paca from the Quaternary of Brazil
Fig. 1. Map showing the location of the Brazilian studied areas (A), and maps of Cuvieri Cave (Lagoa Santa, Minas Gerais) (B), and Toca de Cima dos Pilão Cave (Serra da Capivara, Piauí) (C). In Cuvieri Cave, fossils were excavated from Locus 3, and in Toca de Cima dos Pilão, fossils were excavated from Salão Terezinha. Map in B courtesy of Laboratório de Estudos Evolutivos Humanos and Grupo Bambuí de Pesquisas Espeleológicas, map in C adapted from Acervo da Fundação Museu do Homem Americano.
Fig. 6 in Taxonomic, biogeographic, and taphonomic reassessment of a large extinct species of paca from the Quaternary of Brazil
Fig. 6. Principal component analysis performed using the pooled-within species covariance matrix based on six dentary linear distances. Graydotted lines and associated numbers show the variables that have high correlations (r> 0.5) with each of the PCs. The gray numbers represent the measurements described in SOM 1.
Fig. 2 in Taxonomic, biogeographic, and taphonomic reassessment of a large extinct species of paca from the Quaternary of Brazil
Fig. 2. Fossils from the Lagoa Santa, Minas Gerais, Brazil, attributed to extinct pacas (ages unknown). A, B. Specimens assigned to "Cuniculus paca forma major" Lund, 1839. A. ZMK 1/1845:2029, mandible in occlusal (A1) and lateral (A2) views. B. ZMK 1/1845:13450, maxilla with P4–M3 series in occlusal view (B1); fragment of jugal in lateral view (B2). C. Atlas (ZMK 1/1845:2989) assigned to "Cuniculus paca forma laticeps" by Winge (1887), which Lund (1837) described as Cuniculus rugiceps. Arrow is pointing to the rugosities on the dorsal surface. D. Syntypes of Cuniculus rugiceps from Lagoa Santa with the original label of Herluf Winge (D1) and Lund's (1837) illustration (D2) comparing the right jugal of C. rugiceps ("Fig. 3") with C. paca ("Fig. 4") (Lund 1837: pl. 3, 1840 [1841c]: pl. 20).
Fig. 4 in Taxonomic, biogeographic, and taphonomic reassessment of a large extinct species of paca from the Quaternary of Brazil
Fig. 4. Fossils of the extinct paca Cuniculus rugiceps (Lund, 1837) from Cuvieri Cave (minimum age of ~30 ky) (A, B) and modern specimen of Cuniculus paca Linnaeus, 1766 from Rio Grande do Sul (C). A. Fossil 7 (CVL3 P13160), cranial roof in dorsal (A1) and lateral (A3) views, detail (A2). B. Fossil 8 (CVL3 P13168), right zygomatic arch in dorsal (B1) and lateral (B2) views, detail (B3). C. MCN.D 207, skull in dorsal (C1) and lateral (C3) views, details (C2, C4).
Fig. 5 in Taxonomic, biogeographic, and taphonomic reassessment of a large extinct species of paca from the Quaternary of Brazil
Fig. 5. Lower cheek teeth of the extinct paca Cuniculus rugiceps (Lund, 1837) from Cuvieri Cave (minimum age of ~30 ky). A1, B–F, ontogenetic sequence of cheek teeth. A. Fossil 6 (CVL3 P13344) (image inverted). A1, dp4–m2, the m3 is lacking due to fragmentation. A2, dentary in medial view showing p4 replacing the dp4 (arrow). B. Fossil 4 (CVL3 P13342) (image inverted), showing dp4–m3. C. Fossil 1 (CVL3 4052), showing the p4 erupting and the m3 completely functional. D. Fossil 5 (CVL3 P13145), showing p4–m3. E. Fossil 3 (CVL3 P13149), showing p4–m3. F. Fossil 2 (CVL3 P11221), showing p4–m3. G, H. Isolated molars from Toca de Cima dos Pilão deposits; in occlusal (G1, H1) and lingual (G2, H2) views. G. FUMDHAM 188-19036, possible right m3. H. FUMDHAM 188-19521, possible right m2.
Fig. 3 in Distinguishing Quaternary glyptodontine cingulates in South America: How informative are juvenile specimens?
Fig. 3. Dispersion graph including values of thickness and diameter of osteoderms from dorsal carapace of Glyptodon and Glyptotherium in different ontogenetic stages.
Fig. 2 in Distinguishing Quaternary glyptodontine cingulates in South America: How informative are juvenile specimens?
Fig. 2. Juvenile. Osteoderms of the dorsal caparace (A–I) and caudal armor (J–K) of juvenile glyptodont Glyptotherium sp. (UNIRIO-PM 6231) from the Late Pleistocene of Aurora do Tocantins, Brazil; in external (A1–K1), internal (A2, C2), and lateral (A3, B2, C3, D2–K2) views.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.