Journal ArticleDOI
Early Pragian conodont‐based correlations between the Barrandian area and the Spanish Central Pyrenees
TLDR
In this paper, a correlation of the early early Pragian of the Prague Synform and the Spanish Central Pyrenees (section Segre 1) is based on conodont taxa of the Icriodus steinachensis and the Pelekysgnathus serratus stocks.Abstract:
Occurrences and distribution of extremely scarce eognathodontids do not facilitate reliable correlation across the European regions. The correlation of the traditional early Pragian of the Prague Synform (a part of the classical Barrandian area) and the Spanish Central Pyrenees (section Segre 1) is based on conodont taxa of the Icriodus steinachensis and the Pelekysgnathus serratus stocks. This correlation has the potential to be extended to other peri-Gondwanan regions where this scarcity of eognathodontid faunas exists as well. Application of the morphotype subdivision in I. steinachensis enables approximation of the beginning of the Pragian in the Pyrenees. It is based on the entry of I. steinachensis beta morphotype; it enters together with early eognathodontid taxa in the Barrandian sections. These correlations show that routine application of certain zonal concepts can lead to misleading conclusions. Copyright © 2007 John Wiley & Sons, Ltd.read more
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Devonian climate, sea level and evolutionary events: an introduction
TL;DR: In this paper, the authors present a detailed overview of the evolution of the Devonian extinction process and its evolution in the Palaeozoic and show that the extinction process can be viewed in the context of a global event sequence.
Journal ArticleDOI
Reducing time-scale uncertainty for the Devonian by integrating astrochronology and Bayesian statistics
TL;DR: In this article, Bayesian statistics are applied to the Devonian time scale to better incorporate stratigraphic and radioisotopic uncertainty, resulting in a more accurate time scale for the Frasnian-Famennian boundary.
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Stratigraphic significance and resolution of spectral reflectance logs in Lower Devonian carbonates of the Barrandian area, Czech Republic; a correlation with magnetic susceptibility and gamma-ray logs
TL;DR: In this paper, high-resolution outcrop spectral reflectance (SR) logging of a Lower Devonian distal ramp carbonate section of the Barrandian area, Czech Republic has been used as a proxy for organic carbon and siliciclastic input in carbonate sediments, in particular in core research.
Journal ArticleDOI
New Lower Devonian Polygnathids (Conodonta) from the Spanish Central Pyrenees, with comments on the early radiation of the group
TL;DR: A comprehensive study of six Pragian-lower Emsian (Lower Devonian) sections from the Spanish Central Pyrenees has yielded a rich assemblage of conodont faunas, highlighting an important succession of Polygnathus species as discussed by the authors.
References
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Journal ArticleDOI
Calibrating the Devonian Time Scale: A synthesis of U-Pb ID-TIMS ages and conodont stratigraphy
TL;DR: In this article, the authors proposed a time-linear biostratigraphic scale for the interpolation between the isotopic ages of the Devonian chronology, which represents a "biochronometric" time scale, which allows the assignment of numeric ages not only to stage boundaries but also to each biozone boundary.
Journal ArticleDOI
Geophysical records of dispersed weathering products on the Frasnian carbonate platform and early Famennian ramps in Moravia, Czech Republic: proxies for eustasy and palaeoclimate
TL;DR: In this paper, the authors investigated the effect of high sea level on the formation of reefs in the Frasnian/Famennian (F/F) period. But they only used a single platform with a stable and only slowly subsiding basement (Eastern Moravia, Czech Republic).
Journal Article
Biostratigraphy and evolution of the Ozarkodina remscheidensis-Eognathodus sulcatus lineage (Lower Devonian) in Germany and central Nevada
Journal ArticleDOI
Stratigraphy of the Middle Devonian boundary: Formal definition of the susceptibility magnetostratotype in Germany with comparisons to sections in the Czech Republic, Morocco and Spain
Brooks B. Ellwood,Jenaro Luis García-Alcalde,Ahmed El Hassani,Jindrich Hladil,Francisco Soto,Montserrat Truyóls-Massoni,Karsten Weddige,Leona Koptikova +7 more
TL;DR: In this paper, the authors used magnetostratigraphy susceptibility measurements to identify the Emsian-Eifelian boundary in the Middle Devonian in Europe and North Africa.
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