A5026860769- Paleontology and Stratigraphy of Fossils
- Evolution and Paleontology Studies
- Geological and Geophysical Studies Worldwide
- Paleontology and Evolutionary Biology
- Archaeological and Geological Studies
- Archaeological and Historical Studies
- Hydrocarbon exploration and reservoir analysis
- Geological and Geochemical Analysis
- Geological formations and processes
- Geological Studies and Exploration
- Geochemistry and Geologic Mapping
- Geological and Tectonic Studies in Latin America
- Geological and Geophysical Studies
- Urbanism, Landscape, and Tourism Studies
- Archaeology and Cultural Heritage
- Medieval Architecture and Archaeology
- Geology and Paleoclimatology Research
- Drilling and Well Engineering
- Plant Diversity and Evolution
- Ichthyology and Marine Biology
- Geological Formations and Processes Exploration
- Seismology and Earthquake Studies
- Hemiptera Insect Studies
- Historical Studies in Science
- Space Exploration and Technology
Universitat de València
2015-2024
Universidad Complutense de Madrid
2008-2023
University of West Bohemia
2020
Nanjing Institute of Geology and Paleontology
2017
Chinese Academy of Sciences
2017
Institute of Natural Sciences
2013
Senckenberg Research Institute and Natural History Museum Frankfurt/M
2008
Technische Universität Braunschweig
1994-2008
Czech Academy of Sciences, Institute of Geology
2007-2008
Czech Academy of Sciences
2007
The current conodont biozonation near the Silurian/Devonian boundary includes problematic biozones and is revised.Global applications of zonal concepts concerning standard zones eosteinhornensis, remscheidensis, detorta, woschmidti are revised.New correlations based on faunas from Požáry section (the stratotype Přídolí Series, Barrandian) Elbersreuth Orthoceratid Limestone (Frankenwald); they enable with Baltic faunas.The new data show that eosteinhornensis Zone s.s.begins amid Přídolí.The...
The comprehensive study of six Pragian-lower Emsian (Lower Devonian) sections from the Spanish Central Pyrenees has yielded a rich assemblage conodont faunas, highlighting an important succession Polygnathus species. Among them, presence biostratigraphical markers P. pireneae, kitabicus, excavatus and exc. 114 stands out. This allows identification Pragian/Emsian boundary early zones subzones: kitabicus Zone Lower Middle subzones. It is also remarkable three new polygnathid species:...
The redefinition of the lower boundary a traditional stage by means GSSP must be adapted as closely practicable to level because divergence between original sense concept and name new creates confusing nomenclature.The present for Emsian Stage in Zinzilban section (Kitab Reserve, SE Uzbekistan) is too low fulfill this requirement.Accordingly, International Subcommission on Devonian Stratigraphy (SDS) IUGS Commission necessary.A defined at higher could done strata stratotype area.The...
The continuous replacement of teeth throughout their lifetime is a common characteristic most chondrichthyans. This process was already present in the earliest representatives group. It has been well established that different species extant sharks show rapid tooth rates; however, some authors have suggested early chondrichthyans this rate might much slower. Here we qualitative approach to analyse rates Early Devonian shark Leonodus carlsi, tooth-bearing known date. For this, examined 1,103...
Abstract Occurrences and distribution of extremely scarce eognathodontids do not facilitate reliable correlation across the European regions. The traditional early Pragian Prague Synform (a part classical Barrandian area) Spanish Central Pyrenees (section Segre 1) is based on conodont taxa Icriodus steinachensis Pelekysgnathus serratus stocks. This has potential to be extended other peri‐Gondwanan regions where this scarcity eognathodontid faunas exists as well. Application morphotype...
Abstract Detailed correlation, based on conodont sequences, between middle and upper Lochkovian carbonate successions from two key peri‐Gondwanan regions, the Spanish Central Pyrenees Prague Synform, is attained for first time. This correlation facilitates definition of tie points further multidisciplinary studies that seek to establish high‐resolution temporal subdivision global correlation. Some intervals have a precision less than 0.5 Ma, which significantly greater in previous studies....
At Nigüella (Eastern Iberian Chain), a spatially restricted brachiopod fauna is slightly older than the traditional Middle Siegenian. It composed of taxa most which invaded Rhenohercynicum shortly later, when facies there changed from deltaic to shallow marine. Occurring in typically Rhenish lithofacies, lacks that are common coeval faunas lbero-Armorica, but its own have earlier Ibero-Armorican ancestors and origins, except Multispirifer cf. solitarius Arbizustrophia n. sp. N. Hitherto, M....
Conodont biostratigraphic research on the Comabella Formation at Villech (Spanish Central Pyrenees), a 54 m thick pinkish-greyish compact hemipelagic limestone section situated in Compte "subfacies area", reveals an Eifelian to early Frasnian age for studied interval.The base of is lower (costatus Zone), indicated by lowest local record Polygnathus angustipennatus, associated with P. partitus.The kockelianus and eiflius zones are recognized half section.The uppermost lowermost Givetian...
The analysis of conodont faunas from the Comabella Formation at La Guardia d'Àres in Spanish Central Pyrenees improves biostratigraphical characterization this stratum.Forty-seven taxa spanning Eifelian through Lower Frasnian are identified and described.The lower part formation starts kockelianus Zone.The Eifelian/Givetian boundary can be by entry index taxon Polygnathus hemiansatus.The Givetian section is tectonically disturbed, affecting mostly confident recognition rhenanus/varcus Upper...
A detailed study of the fossil assemblages Famennian conodonts has been carried out in Compte section Central Pyrenees. The studied comprises upper part Comabella Formation, La Mena Fm and lower Barousse Fm. Fifty samples have collected from a 11.73 m thick stratigraphic succession. Forty–seven lower–middle conodont taxa identified, belonging to four genera: Palmatolepis, Polygnathus, Icriodus Mehlina. identified change through section: part, Palmatolepis are more frequent overlaying strata,...
Abstract The first biostratigraphical study on the complete Pedreira da Engenharia quarry section (Middle Devonian, SW Portugal) is presented. A total of 32 samples were collected from three subsections (PE-A, floor; PE-B and PE-C). This led to identification 15 species belonging genera Icriodus , Polygnathus Tortodus . Four index identified: P costatus ; T australis kockelianus ensensis age for was updated zone (Boogaard, 1972) - zones (lower uppermost Eifelian). There a thin part...
The facies development of the Spanish Triassic corresponds to typical three‐fold subdivision Germanic Facies: Buntsandstein, Muschelkalk and Keuper. Two intervals interpreted as epeiric carbonate platforms: lower (Anisian) upper (Ladinian) are recognized during Middle northeastern Spain. These separated by one siliciclastic/evaporitic interval sabbkha saline deposits: middle (Lower Ladinian). In Spain (Catalonian Coastal Ranges), two sections comprising have yielded following conodont taxa:...
Abstract A Lower and basal Middle varcus Zone (Givetian, Devonian) vertebrate association consisting of chondrichtyan teeth scales the genus Phoebodus is documented for first time from Aragonian Pyrenees Spain. This record suggests that different morphologies were previously treated as separate taxa could be grouped in fastigatus. Moreover, agreement with reconstructed squamation pattern this taxon.
A comprehensive conodont study of five sections Emsian age, carried out in the Spanish Central Pyrenees, has revealed an important succession polygnathids that can be used for identifying basal boundaries globally recognized biozones. This consists Polygnathus excavatus excavatus, Po. gronbergi, nothoperbonus, mashkovae, laticostatus, and new species luciae allows identification nothoperbonus laticostatus Zones. The Zone is further subdivided into Lower Upper subzones, relying upon lowest...
Records from Europe and Western North America suggest that a diversification of Pedavis faunas took place around the base what has been called pesavis Zone. This level is reviewed in comparison to sequences Spain. Hitherto, two different taxa, S.S. striatus (=Icriodus Klapper 1969) have used indiscriminately defining revision points out chronostratigraphic problems derived an unknown phylogenetic history both P. remain still unsolved, thii fact challenges continued use either taxon as zonal...