A novel chronostratigraphic framework for the Aptian–Albian paleoclimate events [PDF]
Scientific ReportsThe Aptian–Albian interval was marked by paleoclimatic changes encompassing volcanic events and monsoonal activity of which the precise timing were not well-defined.
João M. F. Ramos +11 more
doaj +5 more sources
Astronomical tuning of the Aptian stage and its implications for age recalibrations and paleoclimatic events [PDF]
Nature Communications, 2022 The Early Cretaceous Aptian stage represents an interval of major dramatic climate changes, but there is no consensus on its lower boundary age. Here, the authors present an astro-chronological framework that offers new age constraints on the onset and ...
C. G. Leandro +12 more
doaj +3 more sources
Histology and fossil diagenesis of a pterosaur tooth from the Crato Formation (Lower Cretaceous of Brazil). [PDF]
Anat Rec (Hoboken)Abstract Pterosaur dental biology remains poorly understood despite its importance for comprehending feeding strategies and flight adaptations. Here, we present the first comprehensive histological analysis of an ornithocheiriform pterosaur tooth from the Lower Cretaceous Crato Formation (Santana Group, Northeast Brazil).
Aureliano T +3 more
europepmc +2 more sources
The coelurosaur theropods of the Romualdo formation, early Cretaceous (Aptian) of Brazil: Santanaraptor placidus meets Mirischia asymmetrica. [PDF]
Anat Rec (Hoboken)Abstract The upper carbonate concretion levels of the Romualdo Formation (Aptian, Brazil) have yielded several theropod dinosaur remains, including spinosaurids and the coelurosaurs Santanaraptor placidus and Mirischia asymmetrica, the phylogenetic affinities of which are controversial.
Delcourt R +4 more
europepmc +2 more sources
Geophysical Monograph Series, Page 1-26., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst +8 more
wiley +7 more sources
The Aptian Marls of La Tuilière (Luberon UNESCO Global Geopark, France), a Historical Stratotype [PDF]
Geoconservation Research, 2021 The historical stratotype of the Aptian Stage (Cretaceous) was defined in the Luberon UNESCO global geopark in the middle of the 19th century. Due to excessive urbanization launched in the early sixties, the best outcropping conditions are those found at
Stephane Legal, Pauline Coster
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Assessment of prospects for petroleum bearing Aptian-Albian-Cenomanian strata of the Yamal peninsula - north of Western Siberia, on the basis of 2D seismic survey [PDF]
Нефтегазовая геология: Теория и практика, 2022 The article presents a brief description of the geological structure and petroleum potential of the Aptian-Albian-Cenomanian strata. On the basis of 2D seismic exploration as part of the Aptian and Albian-Cenomanian levels, new promising objects were ...
Smirnov O.A., Borodkin V.N.
doaj +1 more source
BSGF - Earth Sciences Bulletin, 2023 Designing carbonate facies models requires the integration, correlation and conceptual interpretation of multiple geological data sets. Potential significant errors are sourced from uncertain stratigraphic correlations, speculative palaeoecological ...
Michel Julien +11 more
doaj +1 more source
Biogenic structures in test of large benthic foraminifers (Orbitolina): Example from Aptian-Albian sediments of SW Neo-Tethys Ocean, Zagros, SW Iran [PDF]
Journal of Stratigraphy and Sedimentology Researches, 2018 Introduction Study of carbonate sediments of the Dariyan Formation (Aptian-Albian) in northwest of Shiraz releases different types of biogenic structures in forms of encrustation and drilling in hard substrates. Generally biogenic structures are referred
Seyed Mohammad Ali Moosavizadeh +1 more
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Open Geosciences, 2020 This sedimentological and palaeontological analysis of the Aptian–Albian sedimentary succession of the Ait Ourir basin in the High Atlas Mountains of Marrakesh in Morocco provides new data from a previously poorly understood basin.
Hadach Fatiha +3 more
doaj +1 more source