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Nomenclatura Unesco > (24) Ciencias de la Vida > (2416) Paleontología
(2416.01) Paleontología animal (2416.02) Paleontología de los invertebrados
(2416.03) Palinología (2416.04) Paleontología de las plantas
(2416.05) Paleontología de los vertebrados (2416.99) Otras (especificar)

Mostrando recursos 1 - 20 de 1,079

1. Las colecciones de Vertebrados fósiles del Museo Nacional - Sánchez Chillón, Begoña; Pesquero, María Dolores; Fraile, Susana; Salesa, Manuel J.
[ES] La carrera científica del Prof. Emiliano Aguirre está directamente unida a la historia reciente del Museo Nacional de Ciencias Naturales. Su contribución y aportación a la Paleontología de Vertebrados durante las últimas décadas ha contribuido al conocimiento del Terciario y Cuaternario de este país y a la formación de varias generaciones de especialistas en Paleontología y Geología. La mayor importancia de estas actividades tiene lugar dentro de la Sección de Paleontología de Vertebrados y Humana del Instituto Lucas Mallada, bajo su dirección. En este período, el incremento de las colecciones del Museo es extraordinario, tanto gracias a la labor desarrollada por el doctor Aguirre como por...

2. Murero y la explosión del Cámbrico: controversias acerca de este acontecimiento - Gozalo, Rodolfo; Andrés, José Antonio; Chirivella Martorell, Juan Bautista; Díes Álvarez, María Eugenia; Esteve, Jorge; Gámez Vintaned, José Antonio; Mayoral Alfaro, Eduardo; Zamora, Samuel; Liñán, Eladio
La explosión cámbrica es, posiblemente, el principal acontecimiento de la historia de la vida desde su aparición hace unos 4.000 millones de años. Su estudio, que ha sido fuente de controversias desde el s. XIX, suscita en la actualidad una intensa investigación y no poca polémica. En este trabajo se describen algunas biotas que antecedieron a la explosión cámbrica, se describe ésta y se discuten las posibles causas de este acontecimiento. Los yacimientos cámbricos de conservación excepcional resultan clave para comprender este bioevento, y aquí se sintetizan los de las Pizarras de Burgess (Burgess Shale) en Canadá y el de Murero en España. Sobre este último se...

3. A Complementary Section for the Proposed Toarcian (Lower Jurassic) Global Stratotype: the Almonacid De La Cuba Section (Spain) - Comas Rengifo, María José; Arias Fernández, María del Carmen; Gómez Fernández, Juan José; Goy Goy, Antonio; Herrero Matesanz, Concepción; Osete López, María Luisa; Palencia Ortas, Alicia
We present the biostratigraphy (ammonites, brachiopods, foraminifers, and ostracodes), lithostratigraphy, sedimentology, sequence stratigraphy, magnetostratigraphy, and isotope stratigraphy of the Almonacid de la Cuba section located in the Iberian Range, central eastern Spain. This section, which contains a continuous and expanded record of the Pliensbachian–Toarcian boundary (Early Jurassic), has been proposed as a complementary section for the Toarcian GSSP. An excellent ammonite based biozonation has been obtained. Four ammonite assemblages characterized by the presence of Pleuroceras, Canavaria, Dactylio ceras (Eodactylites), and Dactylioceras (Orthodactylites) have been distinguished. The base of the Toarcian is located at level CU35.2, based on the first occurrence of Dactylioceras. The occurrence of...

4. Multivariate hierarchical analyses of Early Jurassic Ostracoda assemblages - Arias Fernández, María del Carmen; Whatley, R.C.
Palaeobiogeographic patterns of Early Jurassic ostracods from the northern and southern hemispheres (96 sections located in Europe, North Africa, Western Australia and North and South America) based on 243 species-level records document global patterns of distribution that can be compared to those previously published on ostracods from the European Epicontinental Sea and Tethyan and South Panthalassa areas. All described records of ostracods from both hemispheres spanning the Hettangian to Early Toarcian have been compiled and verified, and their patterns of origin and distribution have been interpreted. Jaccard coefficient of similarity was used to asses similarities among European, American and Tethyan ostracod shelf faunas. The numerical analysis shows a...

5. Rapid warming and ostracods mass extinction at the Lower Toarcian (Jurassic) of central Spain - Gómez Fernández, Juan José; Arias Fernández, María del Carmen
Here we present the results of the study of two Lower Toarcian carbonate sections located in the Iberian Range of central Spain. Analyses of stable isotope on belemnite calcite allowed calculation of seawater palaeotemperature variations, which were compared with the stratigraphical distribution of ostracods. These organisms are particularly sensitive to ratios of temperature and salinity variations and hence are good indicators of climate changes. From a cooling interval, with seawater temperatures of 13.2 °C recorded at the Pliensbachian−Toarcian transition, seawater temperature began to rise in the lowermost Toarcian Tenuicostatum Zone, reaching average temperatures between 14.6 °C and 16.3 °C during the time of deposition of this Zone....

6. Extinction pattern of marine Ostracoda across the Pliensbachian-Toarcian boundary in the Cordillera Ibérica, NE Spain: Causes and consequences - Arias Fernández, María del Carmen
This paper discusses the extinction pattern of the Pliensbachian-Toarcian boundary (PTB) ostracod assemblages at the Almonacid de la Cuba section (Cordillera Ibérica, NE Spain), which has been recently proposed as auxiliary boundary stratotype for the PTB. The ostracod record shows that the main Early Jurassic ostracod extinction event occurred not at the end of the Pliensbachian, but near the top of the Mirabile ammonite Subzone, Tenuicostatum ammonite Zone (Early Toarcian). On the basis of the evaluation of PTB ostracod record, a new causal explanation for the Early Toarcian ostracod turnover is proposed. This paper suggests that a reorganization of surface and deep-water circulations caused...

7. Late Aptian-Albian primitive Radiolitidae (bivalves, hippuritoidea) from Spain and SW France - Masse, Jean Pierre; Fenerci Masse, M.; Vilas Minondo, Lorenzo; Arias Fernández, María del Carmen
The late Aptian-Albian radiolitid taxa, Praeradiolites cantabricus (Douville´) and Praeradiolites ibizanus Astre, from SW France and Spain, are transferred to Eoradiolites. Eoradiolites jumillensis nov. sp. is described from southern Spain, while the so-called ‘‘Sphaerulites cantabricus’’ sensu Toucas (1907) is moved to Praeradiolites and may be of Late Cretaceous age. The Eoradiolites cantabricus group of species is mainly Clansayesian-early Albian in age and possesses an advanced evolutionary status, mainly regarding shell size and cellular structure. Praeradiolites may have been derived from Eoradiolites jumillensis nov. sp. through paedomorphosis while Eoradiolites cantabricus may have been the source for Sphaerulites. Our study shows that the names Sphaerulites and Praeradiolites...

8. The early Toarcian (early Jurassic) ostracod extinction events in the Iberian Range: The effect of temperature changes and prolonged exposure to low dissolved oxygen concentrations - Arias Fernández, María del Carmen
The early Toarcian extinction event, once regarded as spanning in the late Pliensbachian–early Toarcian boundary period, actually occurred in two distinct phases in the early Toarcian of the Iberian Range. The first episode occurred in the Mirabile Subzone, Tenuicostatum Zone and is characterised by the disappearance of about 12% of ostracod species and one suborder, the Metacopina (Superfamily Healdioidea). This study shows that this suborder disappears during stratigraphical intervals that are considered to be representative of low oxygen conditions in the Iberian Range. The collapse of marine ecosystems (affecting up to 40% of ostracod species) in the Elegantulum Subzone, Serpentinum Zone was most likely triggered by...

9. Pliensbachian–Toarcian ostracod biogeography in NW Europe: Evidence for water mass structure evolution - Arias Fernández, María del Carmen
This paper examines the role played by palaeoceanographic and climatic conditions on the palaeobiogeography of the Pliensbachian–Toarcian ostracods (Early Jurassic) in the European Epicontinental Sea (EES). The influence of the palaeogeography, ocean currents and sea level, temperature and salinity variations on ostracod abundance, diversity and migration patterns is reconstructed. Ostracod migration follows an anticlockwise circulation in the eastern side of the EES, with a leading northeast–southwest movement, and the frequent arrival of Tethyan faunas into the central and western parts of the EES during the Pliensbachian. A three-fold classification of water masses based on salinity, temperature, lithological and fossil data is proposed. The repeated inflow of...

10. I coralli oligocenici di Sassello nell'Appennino ligure. - Prever, Pietro L.
"Estratto dalla Paleontographia Italica, Memorie di paleontologia ... vol. XXVII-XVIII, 1921-1922."

11. Palinologia de sedimentos de uma floresta tropical paludosa em Montenegro, Rio Grande do Sul - Lorensi, Glademir Antonio; Lorscheitter, Maria Luisa

12. The fossil record of turtles in colombia; a review of the discoveries research and future challenges - Cadena Rueda, Edwin Alberto

13. Janelas sobre mundos extintos : reflexões sobre comunicação em Paleontologia - Brandão, José Manuel; Callapez, Pedro; Santos, Vanda Faria dos; Rodrigues, Nuno P. C.

14. Toponímia de motivació paleontològica de les Illes Balears - Mas Gornals, Guillem; Astudillo, Heracli; Quintana Cardona, Josep
En aquest treball es recopilen i estudien, des d’una perspectiva etnopaleontològica, les aportacions i influencies exercides pels fòssils en relació al patrimoni onomàstic toponímic dins l’àmbit geogràfic de les Illes Balears. Aquests patrimoni paleontotoponímic inclou topònims tradicionals i neotopònims (espeleotopònims) de motivació paleontològica, topònims relacionats amb creences o llegendes sobre els fòssils i topònims relacionats amb l’extracció de carbó fòssil (antracotopònims). També es realitza una aproximació a la utilitat de la toponímia com a ciència auxiliar de la paleontologia.

15. Espeleotoponímia de motivació paleontològica i antracotoponímia de les Illes Balears - Mas, Guillem; Astudillo, Heracli; Quintana, Josep; Gràcia, Francesc
En aquest treball es recopilen i estudien, des d’una perspectiva etnopaleontològica, les aportacions i influencies exercides pels fòssils en relació al patrimoni onomàstic toponímic relacionat amb cavitats càrstiques de l’àmbit geogràfic de les Illes Balears. Generalment es tracta de microtopònims moderns o recents, en vies de popularització i/o tradicionalització (neotopònims), establerts pels científics que estudien les coves i/o esportistes del món de l’espeleologia (topocultismes). Es poden distingir entre espeleotopònims de primer ordre (quan es refereixen a cavitats completes) i de segon ordre (quan es refereixen a un sector d’una cavitat). També es realitza una primera aproximació als topònims referits a mines d’extracció...

16. Paleontología cultural y Etnopaleontología. Dos nuevos enfoques sobre el registro fósil - Astudillo, Heracli
En este artículo se dan a conocer las características de una nueva línea de investigación, abierta y desarrollada por el autor, que integra conocimientos provenientes de cuatro disciplinas académicas distintas: Paleontología, Lingüística, Literatura y Etnología. Asimismo se apuntan algunas posibilidades de aplicación educativa y/o de vinculación curricular.

17. Verhalten der Mineralien zu den Röntgen'schen X-Strahlen / - Doelter y Cisterich, Cornelio August, 1850-1930.
"Separatabdruck aus dem Neuen Jahrbuch für Mineralogie, Geologie und Paleontologie, Jahr 1896, Bd. II."

18. Nieves López Martínez, passion for Science - Álvarez Sierra, María Ángeles; Astibia Ayerra, Humberto; Hernández Fernández, Manuel; Moyà Solà, Salvador

19. Revista Brasileira de Paleontologia 8(3):221-228, Setembro/Dezembro 2005 © 2005 by the Sociedade Brasileira de Paleontologia THE TAXONOMIC STATUS OF STAHLECKERIA IMPOTENS (THERAPSIDA, DICYNODONTIA): REDESCRIPTION AND DISCUSSION OF ITS PHYLOGENETIC POSITIO - Cristina Vega-dias; Michael W. Maisch
ABSTRACT – The cranial and postcranial materials of the holotype and paratype of the recently described Stahleckeria impotens Lucas from the Middle Triassic of Brazil is redescribed. These specimens are compared to juveniles and adults of S. potens Huene. The available data indicate that the materials of S. impotens represent merely juvenile or immature specimens of S. potens. Stahleckeria impotens is thus considered a junior subjective synonym of S. potens. The materials share important characteristics with other derived tuskless kannemeyeriiforms, such as Angonisaurus, Ischigualastia and Jachaleria. A lectotype is designated for S. potens. Key words: Therapsida, Dicynodontia, Stahleckeria, Middle Triassic,...

20. Dental microwear analysis in Gliridae (Rodentia): methodological issues and paleodiet inferences based on Armantomys from the Madrid Basin (Spain) - Oliver Pérez, Adriana; Hernández Vallarín, Verónica; López Guerrero, Paloma; García Paredes, Israel; Álvarez Sierra, María Ángeles; Gómez Cano, Ana Rosa; García Yelo, Ana Blanca; Alcalde Rincón, Gema María; Peláez-Campomanes de Labra, Pablo
In the present study we analyze the microwear of the species included in the lineage Armantomys aragonensis-A. tricristatus of two samples from two middle Miocene localities from the Madrid Basin (El Cañaveral and Casa Montero). The methodological part of the study compares light stereomicroscope photographs from resin casts and Environmental Scanning Electron Microscope (ESEM) photographs from original material. Furthermore two regions of the tooth crown (the most lingual part of the anteroloph, and the most lingual part of the protoloph) and two homologous regions of first and second upper molars have been analyzed. The paleoecological part includes the results of the microwear analyses of the...

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