Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 52
Primeira ... 123 ... Última
Imagem não selecionada

Imprime registro no formato completo
A multi-proxy stalagmite record from northwestern Namibia of regional drying with increasing global-scale warmth over the last 47 kyr: The interplay of a globally shifting ITCZ with regional currents, winds, and rainfall ArchiMer
Railsback, L. Bruce; Brook, George A.; Liang, Fuyuan; Marais, Eugene; Cheng, Hai; Edwards, R. Lawrence.
Stalagmite Orum-1 from a cave near Orumana in northwestern Namibia provides a multi-proxy record of regional drying with increasing global-scale warmth over the last 47 kyr, in a region with few long well-dated location specific paleoclimate records. Data from Stalagmite Orum-1 include carbon and oxygen stable isotope ratios, proportions of aragonite and calcite, pronouncedly differing petrographic fabrics, positions of layer-bounding surfaces, variation in layer-specific width, and changes in layer thickness, all of which combine to support change from wetter to drier conditions. Combined with fourteen U-Th ages, they suggest that climate was wetter in northwestern Namibia during globally cold MIS 3 than it is today, and with more grass than is present...
Tipo: Text Palavras-chave: Namibia; Paleoclimate; Pleistocene; Holocene; Savanna; Stalagmite.
Ano: 2016 URL: https://archimer.ifremer.fr/doc/00421/53213/54862.pdf
Imagem não selecionada

Imprime registro no formato completo
A new species of land crab, Sesarma Say, 1817 (Decapoda, Brachyura), from the Pleistocene of Jamaica Naturalis
Collins, J.S.H.; Mitchell, S.F.; Donovan, S.K..
Terrestrial arthropods are poorly known from the Cenozoic of Jamaica. A probably Late Pleistocene land crab, Sesarma primigenium sp. nov., is described from the Western Cement Company Cave, parish of St. Elizabeth, southwestern Jamaica. The same species is also tentatively recognised from the Late Pleistocene Red Hills Road Cave, parish of St. Andrew, eastern central Jamaica. The propodi of the new species are moderately globose, with an upper margin that is comparatively short and finely granulate ridged; the fingers are obscurely spooned and gaped; and the in-turned fixed finger is in line with, and a litt le shorter than, the basal margin. Of the nine extant endemic members of this subgenus in Jamaica, S. jarvisi Rathbun and S. verleyi Rathbun have...
Tipo: Article / Letter to the editor Palavras-chave: Land crabs; Sesarma; Caves; Pleistocene; Jamaica; 42.74.
Ano: 2009 URL: http://www.repository.naturalis.nl/record/301550
Imagem não selecionada

Imprime registro no formato completo
A review of the Quaternary Scelidotheriinae (Mammalia, Xenarthra, Tardigrada) from the Tarija-Padcaya basin, Bolivia Anais da ABC (AABC)
MIÑO-BOILINI,ÁNGEL R.; CARLINI,ALFREDO A.; ZURITA,ALFREDO E.; SOIBELZON,ESTEBAN; RODRÍGUEZ-BUALÓ,SANTIAGO M..
ABSTRACT The Mylodontidae Scelidotheriinae (Mammalia, Xenarthra, Tardigrada) are a diversified clade of South American fossil ground sloths, with a wide geographic distribution, especially in high and middle latitudes. According to the last revision, the Quaternary diversity includes the genera Scelidotherium, Catonyx, and Valgipes. The clade Scelidotheriinae is well represented in the Pleistocene of the Tarija-Padcaya basin, and the first mention of these ground sloths correspond to the middle of the XIX Century. Since then, several species (i.e., Scelidotherium tarijensis, Scelidodon tarijensis, Scelidotherium capellini) have been reported as inhabiting the Tarija-Padcaya basin during the Pleistocene. Despite the abundance of fossil records of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Catonyx; Diversity; Pilosa; Pleistocene; South America.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000400505
Imagem não selecionada

Imprime registro no formato completo
A taxonomic revision of the Pleistocene Hystrix (Hystricidae, Rodentia) from Eurasia with notes on the evolution of the family Naturalis
Weers, D.J. van.
Measurements of many hundreds of the high-crowned cheek teeth of Hystrix specimens from the Euro-Asiatic Pleistocene in the collections of European and Asiatic institutions have been compared with extant species for a revision of the genus. A review is given about the extant genera and species of the family. The number of recognisable Euro-Asiatic species in the fossil record is reduced from eight to five. The European H. (A.) vinogradovi Argyropulo, 1941 is here considered to be a synonym of H. (A.) brachyura Linnaeus, 1758, and the three Asiatic species H. (H.) crassidens Lydekker, 1886, H. (H.) gigantea Van Weers, 1985 and H. (H.) magna Pei, 1987 are synonymized with H. (H.) refossa Gervais, 1852. Most of the Chinese fossil specimens are properly...
Tipo: Article / Letter to the editor Palavras-chave: Porcupines; Asia; Evolution; Europe; Paleogeography; Pleistocene; 42.84.
Ano: 2005 URL: http://www.repository.naturalis.nl/record/209654
Imagem não selecionada

Imprime registro no formato completo
Ancient feeding, ecology and extinction of Pleistocene horses from the Pampean Region, Argentina Ameghiniana
Sánchez,Begoña; Prado,José Luis; Alberdi,María Teresa.
To reconstruct the diet and habitat preference of fossil horses, we measured the carbon and oxygen isotope composition of 35 bone and tooth samples of Equus (Amerhippus) neogeus Lund, Hippidion principale (Lund), and Hippidion devillei (Gervais) from 10 different Pleistocene localities in the Pampean region (Argentina). To compare the three species by stratigraphic age, we divided the samples into three groups: lower Pleistocene, middle-late Pleistocene and latest Pleistocene. Samples of Hippidion devillei from the lower Pleistocene were more homogeneous, with δ13C values ranging between -11.73 to -9.79‰. These data indicate a diet exclusively dominated by C3 plants. In contrast, Hippidion principale and Equus (Amerhippus) neogeus from...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Equus (Amerhippus); Hippidion; Paleodiet; Ecology; Extinction; Pleistocene; Papean region; South America.
Ano: 2006 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0002-70142006000200012
Imagem não selecionada

Imprime registro no formato completo
Biometric analysis and taxonomic allocation of Pleistocene Hystrix specimens (Rodentia, Porcupines) from China Naturalis
Weers, D.J. van; Shaohua, Zheng.
Early to Middle Pleistocene Hystrix material in the collections of the IVPP in Beijing, has been biometrically studied and compared with other fossil and extant species. The specimens are from Zhoukoudian (Beijing), the Liucheng Gigantopithecus cave (Guangxi) and other caves in that province, the Wazhuwan and Yanhui Cave (Guizhou) and from Longgupo (Sichuan). None of the fossil specimens can be allocated to the extant Chinese Hystrix brachyura subcristata Swinhoe, 1870, subgenus Acanthion F. Cuvier, 1823. Most of the collections studied consist of a mixture of two species with overlapping size ranges. Cheek teeth of most Hystrix species do not show diagnostic characters other than size, so not every one of them can be assigned with certainty to the larger...
Tipo: Article / Letter to the editor Palavras-chave: Hystrix; China; Pleistocene; Nihewanian; Zhoukoudianian; H. magna; H. kiangsenensis.
Ano: 1998 URL: http://www.repository.naturalis.nl/record/505208
Imagem não selecionada

Imprime registro no formato completo
Climatic variability in Mfabeni peatlands (South Africa) since the late Pleistocene ArchiMer
Baker, Andrea; Pedentchouk, Nikolai; Routh, Joyanto; Roychoudhury, Alakendra N..
It has been postulated that a bipolar seesaw interhemispheric mechanism dominated the relationship between the Northern and Southern hemisphere climates since the late Pleistocene. A key test for this proposition would be to undertake palaeoenvironmental studies on terrestrial archives in climatically sensitive regions. Southern Africa's contemporary C-3 and C-4 terrestrial plant distributions display a definitive geographical pattern dictated by different growing season rainfall and temperature zones; however, the region is generally archive poor due to its overall semi-arid climate and high relief topography. The Mfabeni peatland, with a basal age of c. 47 k yrs calibrated before present (kcal yr BP), is one of the oldest continuous coastal peat deposits...
Tipo: Text Palavras-chave: Holocene; Pleistocene; Paleoclimatology; Southern Africa; Stable isotopes; Continental biomarkers; Peatland.
Ano: 2017 URL: https://archimer.ifremer.fr/doc/00420/53176/83104.pdf
Imagem não selecionada

Imprime registro no formato completo
Cordão Formation: loess deposits in the southern coastal plain of the state of Rio Grande do Sul, Brazil Anais da ABC (AABC)
LOPES,RENATO P.; DILLENBURG,SERGIO R.; SCHULTZ,CESAR L..
ABSTRACT Loess consists of silt-dominated sediments that cover ~10% of the Earth's surface. In southern South America it occurs in Argentina, Bolivia, Paraguay and Uruguay, and its presence in southern Brazil was never studied in detail. Here is proposed a new lithostratigraphic unit, Cordão Formation, consisting of loess deposits in the southern Brazilian coastal plain. It consists of fine-very fine silt with subordinate sand and clay, found mostly in lowland areas between Pleistocene coastal barriers. These sediments are pale-colored (10YR hue) and forms ~1,5-2,0 meter-thick stable vertical walls. The clay minerals include illite, smectite, interstratified illite/smectite and kaolinite, the coarser fraction is mostly quartz and plagioclase. Caliche and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chuy Creek; Coastal plain; Last glacial stage; Loess; Pleistocene.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000602143
Imagem não selecionada

Imprime registro no formato completo
Crustáceos (Decapoda: Brachyura) fósiles de Cuba. OceanDocs
Varela, C.; Rojas-Consuegra, R..
Three families, two genera and two species are recorded for the first time for the Cuban Cretaceous to Pleistocene geologic age. The genera Persephona Leach, 1817 (Leucosiidae), Mithrax Desmarest, 1823 (Majidae) and Panopeus Milne Edwards, 1834 (Panopeidae) are well known in the Recent of the Caribbean region. Fossils of these taxa are found in formations from lower Miocene to upper Pleistocene in age in the Caribbean. Portunus oblongus Rathbun, 1920, an extinct species, is the first species of Portunus Weber, 1795 recorded from Cuban Oligocene–Miocene. Lophoranina precocious Feldmann, Vega, Tucker, García-Barrera y Avendaño, 1996 (Raninidae), other extinct species, is also recorded for the Cretaceous (Campanian- Maastrichtian). This is the most ancient...
Tipo: Journal Contribution Palavras-chave: Cretaceous; Oligocene; Miocene; Pleistocene.
Ano: 2009 URL: http://hdl.handle.net/1834/3408
Imagem não selecionada

Imprime registro no formato completo
Dental morphology of Talpa europaea and Talpa occidentalis (Mammalia: Insectivora) with a discussion of fossil Talpa in the Pleistocene of Europe Naturalis
Cleef-Roders, J.T. van; Hoek Ostende, L.W. van den.
A description is given of the last premolar and molars of T. europaea from The Netherlands and T. occidentalis of Spain. The metrical and morphological differences between the dentitions of the two species are small. A review is given of the literature of fossil Talpa in the Pleistocene of Europe. The suggestion that T. minor is ancestral to T. caeca is rejected. T. fossilis is tentatively considered a junior synonym of T. europaea.
Tipo: Article / Letter to the editor Palavras-chave: Talpa; Dentitions; Pleistocene; Europe; 42.84.
Ano: 2001 URL: http://www.repository.naturalis.nl/record/217433
Imagem não selecionada

Imprime registro no formato completo
Dimensions and architecture of late Pleistocene submarine lobes off the northern margin of East Corsica ArchiMer
Deptuck, M; Piper, D; Savoye, Bruno; Gervais, A.
Sandy lobe deposits on submarine fans are sensitive recorders of the types of sediment gravity flows supplied to a basin and are economically important as hydrocarbon reservoirs. This study investigates the causes of variability in 20 lobes in small late Pleistocene submarine fans off East Corsica. These lobes were imaged using ultra-high resolution boomer seismic profiles (< 1 m vertical resolution) and sediment type was ground truthed using piston cores published in previous studies. Repeated crossings of the same depositional bodies were used to measure spatial changes in their dimensions and architecture. Most lobes increase abruptly down-slope to a peak thickness of 8 to 42 m, beyond which they show a progressive, typically more gradual, decrease...
Tipo: Text Palavras-chave: Turbidites; Submarine lobes; Pleistocene; Dimensions; Compensation stacking; Architecture.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/publication-4712.pdf
Imagem não selecionada

Imprime registro no formato completo
Early Pleistocene lineages of Bagre bagre (Linnaeus, 1766) (Siluriformes: Ariidae), from the Atlantic coast of South America, with insights into the demography and biogeography of the species Neotropical Ichthyology
Silva,Wemerson C. da; Marceniuk,Alexandre P.; Sales,João Braullio L.; Araripe,Juliana.
ABSTRACT Coastal and marine environments are characterized by a lack of evident physical barriers or geographic isolation, and it may be difficult to understand how divergence can arise and be sustained in marine environments. The identification of 'soft' barriers is a crucial step towards the understanding of gene flow in marine environments. The marine catfishes of the family Ariidae are a demersal group with restricted migratory behavior, no pelagic larval stages, and mechanisms of larval retention, representing a potentially useful model for the understanding of historical processes of allopatric speciation in the marine environment. In the present study, two lineages of the Coco sea catfish, Bagre bagre , were recognized from their complete...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Genetics; Morphological; Pleistocene; Sea level variations; Species evolution.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252016000200214
Imagem não selecionada

Imprime registro no formato completo
East Asian monsoon history and paleoceanography of the Japan Sea over the last 460,000 years ArchiMer
Gallagher, Stephen J; Sagawa, Takuya; Henderson, Andrew C. G.; Saavedra-pellitero, Mariem; De Vleeschouwe, David; Black, Heather; Itaki, Takuya; Toucanne, Samuel; Bassetti, Maria-angela; Clemens, Steve; Anderson, William; Alvarez-zarikian, Carlos; Tada, Ryuji.
The Japan Sea is directly influenced by the Asian monsoon, a system that transports moisture and heat across southeast Asia during the boreal summer, and is a major driver of the Earth's ocean‐atmospheric circulation. Foraminiferal and facies analyses of a 460 kyr record from IODP Expedition 346 Site U1427 in the Japan Sea reveal a record of nutrient flux and oxygenation that varied due to sea level and East Asian monsoon intensity. The East Asian summer monsoon (EASM) was most intense during MIS (Marine Isotope Stage) 5e, 7e, 9e and 11c when the Tsushima Warm Current flowed into an unrestricted well mixed normal salinity Japan Sea. Whereas East Asian winter monsoon (EAWM) conditions dominated MIS 2, 4, 6 and 8 when sea level minima restricted the Japan...
Tipo: Text Palavras-chave: Tsushima Warm Current; Pleistocene; Holocene; Paleoceanography; East Asian summer monsoon; East Asian winter monsoon.
Ano: 2018 URL: http://archimer.ifremer.fr/doc/00444/55591/57215.pdf
Imagem não selecionada

Imprime registro no formato completo
Elephas Celebensis (Hooijer) from the Pleistocene of Java Naturalis
Hooijer, D.A..
In a recent monograph, Maglio (1973) states that Stegodon hypsilophus Hooijer (1954a) must be considered a synonym of Elephas celebensis (Hooijer, 1949). Though Elephas celebensis is smaller-toothed and more hypsodont than the "hypsilophous stegodont" of Java (width of M3 42-52 mm against 62-64 mm; height-width index 106-116 against 87-89: Hooijer, 1954a, b; Maglio, 1973: 46, table 21), Maglio (1973: 47) considers the differences not great when the degree of variation of known samples (in other species) is allowed for. Over the years, I studied molars of pygmy proboscideans from various Indonesian islands, and it never occurred to me that the Java pygmy would be same as that from Celebes until this suggestion was put forth by Dr. Maglio. I had described...
Tipo: Article / Letter to the editor Palavras-chave: Elephas celebensis (Hooijer); Pleistocene; Java; 38.22; 42.84.
Ano: 1974 URL: http://www.repository.naturalis.nl/record/319209
Imagem não selecionada

Imprime registro no formato completo
Evolution of Janthina and Recluzia (Mollusca: Gastropoda: Epitoniidae) ArchiMer
Beu, A. G..
Fossil and living neustonic gastropods referred previously to Janthinidae are revised and included in Epitoniidae. Species recognized in Janthina Röding, 1798 (= Iodes, Iodina and Amethistina Mörch, 1860, Hartungia Bronn, 1861, Heligmope Tate, 1893, Violetta Iredale, 1929, Parajanthina Tomida & Itoigawa, 1982, and Kaneconcha Kaim, Tucholke & Warén, 2012) are J. typica (Bronn), Messinian–early Piacenzian (latest Miocene–early late Pliocene), c. 7–3.0 Ma (New Zealand, southern Australia, Japan, Morocco, dredged off Brazil, Madeira, Gran Canaria I., Selvagem Grande I., and Santa Maria I., Azores); J. krejcii sp. nov., Zanclean (early Pliocene), c. 4.8–4.3 Ma (Santa Maria I.); J. chavani (Ludbrook), late Piacenzian–early Calabrian (latest...
Tipo: Text Palavras-chave: Biostratigraphy; Cosmopolitan; Fossil record; Neustonic gastropods; Pleistocene; Pliocene; Phylogeny.
Ano: 2017 URL: https://archimer.ifremer.fr/doc/00403/51476/52047.pdf
Imagem não selecionada

Imprime registro no formato completo
Évolution pléistocène de la Seine fluviatile préservée en Baie de Seine ArchiMer
Benabdellouahed, Massinissa; Dugue, Olivier; Tessier, Bernadette; Thinon, Isabelle; Guennoc, Pol.
New high-resolution seismic data complemented with bedrock samples allowed us to propose a revised geological map of the Bay of Seine and to better define the control by the geological substrate on the morphogenesis and evolution of the Seine River during Pleistocene times. The new data confirm previous works. The Bay of Seine can be divided into two geological parts: a Mesozoic monocline domain occupying most of the bay and a syncline domain, mostly Tertiary, in the north, at the transition with the Central English Channel area. The highlighting of Eocene synsedimentary deformations, marked by sliding blocks in the syncline domain, is one of the most original inputs of this new study in the Bay of Seine that underlines the significant role of the...
Tipo: Text Palavras-chave: Pléistocène; Normandie; Baie de Seine; Paléo-Seine; Sismique haute résolution; Incision; Nappes étagées; Nappes emboîtées; Contrôle tectonique; Normandy; Bay of Seine; Pleistocene; Paleo-Seine river; High-resolution seismic; Incision; Strath terraces; Fill terraces; Tectonic control.
Ano: 2013 URL: https://archimer.ifremer.fr/doc/00167/27800/26000.pdf
Imagem não selecionada

Imprime registro no formato completo
Fast diversification through a mosaic of evolutionary histories characterizes the endemic flora of ancient Neotropical mountains. Repositório Alice
VASCONCELOS, T. N. C.; ALCANTARA, S.; ANDRINO, C. O.; FOREST, F.; REGINATO, M.; SIMON, M. F.; PIRANI, J. R..
bitstream/item/215275/1/rspb.2019.2933.pdf
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Campo rupestre; Espinhaço Range; Pliocene; Pleistocene; Climatic fluctuations; Species pump.
Ano: 2020 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1124320
Imagem não selecionada

Imprime registro no formato completo
Flowing into the unknown: inferred paleodrainages for studying the ichthyofauna of Brazilian coastal rivers Neotropical Ichthyology
Thomaz,Andréa T.; Knowles,L. Lacey.
ABSTRACT The eastern coastal basins of Brazil are a series of small and isolated rivers that drain directly into the Atlantic Ocean. During the Pleistocene, sea-level retreat caused by glaciations exposed the continental shelf, resulting in enlarged paleodrainages that connected rivers that are isolated today. Using Geographic Information System (GIS), we infer the distribution of these paleodrainages, and their properties for the east Brazilian coast. Specifically, using elevation/bathymetric data for the largest sea-level retreats during the Pleistocene, the paleodrainages, their area and the number of contemporary basins connected by each palaeodrainage, was inferred. For the 145 inferred paleodrainages, total paleodrainage area is strongly correlated...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Freshwater fishes; Glaciations; Pleistocene; Riverine connections; Sea-level retreat.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252018000300302
Imagem não selecionada

Imprime registro no formato completo
Fossil brachiopods from the Pleistocene of the Antilles Naturalis
Harper, D.A.T.; Donovan, S.K..
Pleistocene brachiopods are poorly known from the Antillean region, but are locally common in forereef deposits of Jamaica (lower Pleistocene Manchioneal Formation) and Barbados (Coral Rock). Of the four species known, two are new. Lacazella sp. cf. L. caribbeanensis Cooper, an encrusting thecideidean, is known from only three valves. Other species are terebratulides. Tichosina inconstanta sp. nov. is a large, ventribiconvex Tichosina species of elongate oval to tear-drop shaped outline, variably uniplicate with a pedicle foramen of moderate diameter. It differs from the similar Tichosina? bartletti (Dall) in having a larger pedicle foramen and a less-marked plication. Argyrotheca barrettiana (Davidson) is a medium to large, usually transverse Argyrotheca...
Tipo: Article / Letter to the editor Palavras-chave: Brachiopoda; Pleistocene; Systematics; Jamaica; Barbados; Antilles; 42.72; 38.22.
Ano: 2007 URL: http://www.repository.naturalis.nl/record/314198
Imagem não selecionada

Imprime registro no formato completo
Fossil Crustacea of the Late Pleistocene Port Morant Formation, west Port Morant Harbour, southeastern Jamaica Naturalis
Collins, J.S.H.; Donovan, S.K.; Stemann, T.A..
The Late Pleistocene Port Morant Formation of southeast Jamaica is particularly rich in fossil marine crustaceans. A new locality on the west side of Port Morant Harbour, parish of St. Thomas, has yielded decapods including the callianassids Lepidophthalmus jamaicense? (Schmitt ), Neocallichirus peraensis Collins et al. and Neocallichirus? sp.; anomurans Petrochirus bahamensis (Herbst) and Paguristes sp. cf. P. lymanni A. Milne-Edwards & Bouvier; and brachyurans Hepatus praecox Collins et al., Persephona sp., Mithrax acuticornis Stimpson, Mithrax verrucosus H. Milne Edwards, Mithraculus forceps A. Milne-Edwards, aff. Hyas sp., Portunus vocans (A. Milne-Edwards), Achelous sebae (H. Milne Edwards), Actaea sp. cf. A. bifrons Rathbun, Actaea acantha (H....
Tipo: Article / Letter to the editor Palavras-chave: Jamaica; Pleistocene; Crustacea; Decapoda; Cirripedia; 42.74.
Ano: 2009 URL: http://www.repository.naturalis.nl/record/301551
Registros recuperados: 52
Primeira ... 123 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional