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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 964

1. Coup d'oeil sur les origines et le développement de la paléontologie en Suisse, par A. Jaccard. - Jaccard, Auguste, 1833-1895.
76 p.

2. Paléontologie de Biarritz et de quelques autres localités des Basses-Pyrénées : [Tome 2] / par M. le Comte R. de Bouillé. - Bouille, R. de.
71 p., 3 f. de pl. ;

3. El Megaterio de Bru y el Presidente Jefferson. Una relación insospechada en los albores de la paleontología - López Piñero, José María; Glick, Thomas F.
El tema del presente libro es la insospechada relación que en los años finales del siglo XVIII, en el momento en el que hay que situar el punto de partida de la moderna paleontología, se produjo entre dos coetáneos de muy distinta condición: el valenciano Juan Bautista Bru de Ramón (1740-1799), disector y dibujante del Real Gabinete de Historia Natural de Madrid, y el virginiano Thomas Jefferson (1743-1826), tercer presidente de los Estados Unidos y uno de los principales redactores de su Declaración de Independencia.

4. Taphonomic analysis and sequence stratigraphy of the Albarracinites beds (lower Bajocian, Iberian range, Spain). An example of shallow condensed section - Fernández López, Sixto Rafael
Several ammonite fossil assemblages from Sierra de Albarracín (Teruel, Castilian Branch) contain abundant specimens of the Ovale and Laeviuscula zones (lower Bajocian, Middle Jurassic), including microconchs and macroconchs of the characteristic genus Albarracinites. Over 1500 ammonites from the type horizon of the species A. albarraciniensis, in the outcrop of Masada Toyuela, have been studied. Ammonites are commonly preserved as phosphatized, calcareous, concretionary internal moulds (mean size = 50.5 mm) of unflattened shells, partially or completely filled with relatively heterogeneous mudstone to wackestone sediment. Incomplete, fragmented phragmocones with calcitic septa are the dominant remains, generally bearing traces of rounding, incrustation and bioerosion. Taphonomic data, such as the predominant...

5. Taphonomy of Ammonite Condensed Associations – Jurassic Examples from Carbonate Platforms of Iberia - Fernández López, Sixto Rafael; Henriques, María Helena Paiva; Duarte, Luís Vitor
Condensed associations of ammonites developed in carbonate epicontinental platforms show different preservational features in expanded deposits of shallow environments in relation to condensed deposits of deep environments. Recognizing these types of condensed associations is important when analysing the relationship between condensed sections and stratigraphical cycles. Deep condensed associations are a very good indicator of relative sea-level rises and transgressive trends. In contrast, shallow condensed associations provide an indicator of relative sea-level falls and regressive trends. [ZUSAMMENFASSUNG] kondensierte Assoziationen von Ammoniten auf epikontinentalen Karbonatplattformen zeigen bei Ablagerung unter Seichtwasserbedingungen verglichen mit Ablagerungen unter Tiefwasserbedingungen ein unterschiedliches Erhaltungsbild. Die Erfassung der Typen kondensierter Assoziationen ist bei der Analyse der Beziehung...

6. Parkinsoniids and garantianids (Late Bajocian Ammonoidea) as guide fossils and biostratigraphic indices - Pavia, Giulio; Fernández López, Sixto Rafael

7. Legado y Continuidad de los Museos Históricos en el Siglo XXI - Infante, Marta; Rábano , Isabel; Fernández López, Sixto Rafael; Mayoral Alfaro, Eduardo Jesús; Sanchis, José Manuel

8. Morphological taphonomic transformations of fossil bones in continental environments, and repercussions of their chemical composition - Fernández Jalvo, Yolanda; Sánchez Chillón, B.; Andrews, Peter; Fernández López, Sixto Rafael; Alcalá Martínez, L.
The aim of this paper is to provide a summary of structural or surface modifications of vertebrate bone remains in continental palaeoenvironments that may have repercussions on their chemical composition. Both before and after burial, a different set of physical, chemical and biological agencies may produce modifications of the bone morphological structure and/or bone chemical composition. Several of these morphological modifications are diagnostic of particular agents, which otherwise may not be noticed or identified in a fossil association. In order to understand diagenesis, those events that occurred before final burial have to be considered, as they may strongly modify the bone morphological structure and influence post-burial changes.

9. Accumulation: taphonomic concept and other palaeontological uses - Fernández López, Sixto Rafael; Fernández Jalvo, Yolanda; Alcalá, Luis

10. The limit between biostratinomy and fossildiagenesis - Fernández López, Sixto Rafael; Fernández Jalvo, Yolanda

11. Upper Bathonian ammonites of the Catalan Basin (Tivissa and Cap Salou, Spain) - Fernández López, Sixto Rafael
The two ammonite successions described in the present paper represent an unusually complete sequence of Upper Bathonian deposits. Ammonites of the Upper Bathonian from Tivissa and Cap Salou (province of Tarragona), two localities of the Catalan Basin, allow to recognize several bio- and chronostratigraphic units commonly missing in the Iberian Basin. The Retrocostatum and Angulicostatum zones (Upper Bathonian) and the lowermost Bullatus Zone (Lower Callovian) established for Submediterranean areas of Europe can be identified in the Catalan Basin. Epistrenoceras and Parapatoceras are common in certain levels. Phylloceratina and Lytoceratina are virtually absent. Two specimens of Upper Bathonian Clydoniceratinae have been identified. However, the Discus Zone established for NW...

12. Tafonomía, fosilización y yacimientos de fósiles: modelos alternativos - Fernández López, Sixto Rafael
La Tafonomía es un subsistema conceptual de la Paleontología cuyo objetivo es averiguar cómo ha sido producido y qué modificaciones ha experimentado el registro fósil. Teniendo en cuenta un planteamiento sistemista y evolucionista se puede desarrollar un modelo alternativo de la fosilización: el modelo de modificación tafonómica y retención diferencial vs. el modelo de modificación paleobiológica y destrucción selectiva. Durante la fosilización aparecen representantes de nuevos grupos tafonómicos, que tienen diferente composición y estructura respecto a los elementos biogénicamente producidos. En cada estadio del proceso de fosilización persisten los grupos tafonómicos (o tafones) cuyos elementos se han estabilizado, transformado y replicado con mayor eficacia en las etapas...

13. Lower Bathonian ammonites of Serra de la Creu (Tivissa, Catalan Basin, Spain) - Fernández López, Sixto Rafael
The study of ammonites of the Bajocian/Bathonian boundary from Serra de la Creu (Tivissa, province of Tarragona), a locality of the Catalan Basin, allows to recognize several bio- and chronostratigraphic units commonly missing in the Iberian Basin. The Parkinsoni Zone (Upper Bajocian) and the lowermost Zigzag Zone (Lower Bathonian) established for NW Europe areas can be identified in the Catalan and Iberian basins (Spain), although the ammonite fossil assemblages are composed by Submediterranean taxa.

14. Dimorphism and evolution of Albarracinites (Ammonoidea, Lower Bajocian) from the Iberian Range (Spain) - Fernández López, Sixto Rafael
Several tens of specimens of Lower Bajocian Albarracinites (type species A. albarraciniensis Fernandez-Lopez, 1985), including microconchs and macroconchs from the Iberian Range, have been studied. This ammonite genus ranges in the Iberian Range from at least the Ovale Zone to the uppermost Laeviuscula Zone of the Lower Bajocian (Middle Jurassic). The macroconch counterpart is thought to be a group of stephanoceratids previously attributed to Mollistephanus, Riccardiceras and other new forms described in this paper. Two chronologically successive species of Albarracinites have been identified: A. albarraciniensis and A. submediterraneus sp. nov. The evolution of the Albarracinites lineage represents a hypermorphic peramorphocline starting from depressed, small and slender...

15. New species of Franchia and Protozigzagiceras (Ammonoidea, Middle Jurassic): The phyletic origin of Zigzagiceratinae - Fernández López, Sixto Rafael; Pavia, Giulio
Three genera and seven species belonging to the subfamily Zigzagiceratinae (family Perisphinctidae) are described from the Lower Bathonian of France and Saudi Arabia. Intraspecific dimorphism is recognized. A revision of the genus Franchia proposed by Sturani (1967), based on the syntypes and new specimens from south-east France, is presented. Franchia arkelli Sturani, Franchia subalpina sp. nov., Protozigzagiceras torrensi (Sturani), Protozigzagiceras tethycum sp. nov., Protozigzagiceras flexum sp. nov. and Protozigzagiceras densum sp. nov. are described from the Digne– Castellane region of south-east France. Megazigzagiceras subarabicum, gen. et sp. nov. is described from the Dharma region of Saudi Arabia. The successive Early Bathonian species of Franchia and Protozigzagiceras herein identified in West Tethyan areas, as members...

16. Bajocian ammonoids from Pumani River area (Ayacucho, Peru): Palaeobiogeographical and palaeoenvironmental implications for the Arequipa Basin - Fernández López, Sixto Rafael; Carlotto, Victor; Giraldo, Edwing; Chacaltana, César
Deposits of the Socosani Formation in the Pucayacu and Pumani sections (Ayacucho Department, Peru), along several kilometres, have yielded Upper Bajocian ammonoid fossil-assemblages characterized by the occurrence of juvenile individuals belonging to endemic or pandemic genera, such as Megasphaeroceras and Spiroceras respectively. In addition, certain Bajocian genera relatively common in the Mediterranean-Caucasian Subrealm, but very scarce in the Eastern Pacific Subrealm, such as the strigoceratid Cadomoceras and the phylloceratid Adabofoloceras, occur in this area. According to the taphonomic, palaeoecological and palaeobiogeographical evidence from the Pumani River area, the maximum deepening, relative sea-level rise and oceanic accessibility of a BajocianeBathonian, second-order, transgressive/regressive facies cycle in the marine Arequipa Basin...

17. Postulates of the evolutionary taphonomy - Fernández López, Sixto Rafael

18. Taphonomy of an ammonite recorded association (Murchisonae Zone, Aalenian, Iberian Range, Spain). Palaeoenvironmental implications. - Fernández López, Sixto Rafael; Martínez Gutiérrez, Gemma

19. Historia del conocimiento de los Ammonites del jurásico de España: II. Los Ammonites del jurásico de España desde 1800 hasta 1900 - Sequeiros, Leandro; Berjillos Ruiz, Pedro; Diéguez, Carmen; Fernández López, Sixto Rafael; Goy Goy, Antonio; Linares Rodríguez, Asunción; Meléndez Hevia, Guillermo; Montero Bastarreche, Ángel; Olóriz Aguilera, Federico; Sandoval Gabarrón, José; Tavera Benítez, José María
The knowledge about Ammonites in Spain, between Torrubia (1754) and the beginning of the XIXth, is analyshed together with an evaluation of possibility for the existence of a real palaeontological research. During the XIXth, the information about Ammonites increased is Spain in relation with developing research on Geology and Stratigraphy as well as with contributions made by foreing geologists and palaeontologists.

20. Late Bajocian bioevents of ammonoid immigration and colonization in the Arequipa Basin (Pumani River area, Ayacucho, southern Peru). - Fernández López, Sixto Rafael
Strata of the Socosani Formation in the Pucayacu and Pumani sections (Ayacucho Department, Peru), along several kilometres, have yielded Upper Bajocian ammonoid fossil-assemblages characterized by the occurrence of juvenile individuals belonging to endemic or pandemic taxa, such as Megasphaeroceras and Spiroceras respectively. In addition, certain Bajocian taxa relatively common in the Mediterranean-Caucasian Subrealm, but very scarce in the Eastern Pacific Subrealm, such as the strigoceratid Cadomoceras and the phylloceratid Adabofoloceras, occur in this area. These Late Bajocian bioevents of regional appearance of immigrant ammonoids and even sustained colonization should be associated with an episode of maximum deepening, maximum relative sea-level rise and highest oceanic accessibility of a Bajocian-Bathonian deepening/shallowing palaeoenvironmental cycle in the Arequipa Basin, during the...

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