Results 31 to 40 of about 2,224 (123)

Tectonic implications of paleontologic dating of Cretaceous-Danian sections of Eastern Cuba

Geologica Acta, 2006
The sedimentary rocks intercalated in volcanic and metavolcanic sections of Mayarí-Baracoa and Sierra del Purial Mountains (Eastern Cuba), yielded Cretaceous through Danian microfossils.
M. A. ITURRALDE-VINENT, C. DÍAZ-OTERO, A. RODRÍGUEZ VEGA, R. DÍAZ-MARTÍNEZ   +3 more
doaj   +1 more source

Features of the composition and structure of the Berezov Formation in the north of Western Siberia [PDF]

Нефтегазовая геология: Теория и практика, 2023
Significant hydrocarbon resources in unconventional clayey-siliceous autochthonous reservoirs of the Upper Cretaceous of the West Siberian Plate and proven industrial gas content (Medvezhye, Kharampur, Gubkin, Severo-Komsomolsk and other fields) are ...
Kudamanov A.I., Gladyshev A.A., Astaf'ev E.V., Karikh T.M., Novoselova M.Yu.   +4 more
doaj  

Facies and sedimentation of Coniacian deposits of the Kraków Swell in the Wielkanoc area (southern Poland) [PDF]

, 2013
Coniacian deposits, ca. 1.5 m thick, cropping out in the Wielkanoc Quarry, north of Kraków in southern Poland, consist of firm, nodular and, less commonly, marly limestones with horizons of in situ, slightly phosphatized hexactinellid sponges and thick ...
Świerczewska-Gładysz, E., Olszewska-Nejbert, D.   +1 more
core   +1 more source

Text-fig. 1. Araucaria fricii VELEN. ex E.BAYER. a: Holotype, Březno, early/middle Coniacian, No. NM-F 1898; b: Radovesice, in A New Specimen Of Araucaria Fricii From The Early Coniacian Of The Bohemian Massif, Central Europe

, 2021
Text-fig. 1. Araucaria fricii VELEN. ex E.BAYER. a: Holotype, Březno, early/middle Coniacian, No. NM-F 1898; b: Radovesice,Published as part of Kvaček, Jiří, 2021, A New Specimen Of Araucaria Fricii From The Early Coniacian Of The Bohemian Massif ...
Kvaček, Jiří
core   +1 more source

Integrated, high-resolution allostratigraphic, biostratigraphic and carbon-isotope correlation of Coniacian strata (Upper Cretaceous), western Alberta and northern Montana [PDF]

, 2017
Inoceramid bivalves are the dominant invertebrate fauna of the Coniacian and basal Santonian of the Western Canada Foreland Basin in western Alberta. In the upper lower Coniacian through to basal Santonian, six successive faunas are recognized, which ...
Walaszczyk, I., Hooper, E.A., Plint, A.G., Grifi, M.D., Landman, N., Gröcke, D.R., Jarvis, I.   +6 more
core   +5 more sources

Synthesis of micropaleontological age constraints for the reconstruction of the Tethyan realm in the Lesser Caucasus (Armenia, Karabagh)

Comptes Rendus. Géoscience, 2023
We present new biostratigraphic results from two ophiolite outcrops in Armenia. The discovery of upper Tithonian–lower Berriasian diagnostic radiolarian species (Vallupus gracilis Li and Sashida) in the lower radiolarites of the Dali section allows to ...
Danelian, Taniel, Triantaphyllou, Maria, Seyler, Monique, Galoyan, Ghazar, Grigoryan, Arayik, Sosson, Marc   +5 more
doaj   +1 more source

Description of large, well‐preserved Enchodus specimens from the Bearpaw Formation of Alberta, Canada

The Anatomical Record, EarlyView.
Abstract Fishes of the genus Enchodus were abundant and cosmopolitan in the Late Cretaceous, but are primarily known from isolated remains in Canada. Four well‐preserved fish skulls were recovered in recent years from ammolite mines sampling the Bearpaw Formation of Southern Alberta, and are here referred to Enchodus petrosus Cope, 1874.
Luke E. Nelson, Alison M. Murray, Donald B. Brinkman   +2 more
wiley   +1 more source

The Earliest Feathers from the Lower Cretaceous Dabeigou Formation of North Hebei: Implications for the Early Evolution of the Jehol Biota

Integrative Zoology, EarlyView.
This study reports two isolated feather fossils from the Lower Cretaceous Dabeigou Formation in northeastern China. Morphological analyses identified them as the earliest known feathered theropods (potentially including avian) in the Jehol Biota. This finding reveals a complex ecosystem at the dawn of the Jehol Biota, bridging the temporal and faunal ...
Qian Wu, Qian‐Nan Zhang, Dang‐Peng Xi   +2 more
wiley   +1 more source

NEW CALCAREOUS NANNOFOSSIL DATA ON THE CRETACEOUS-EOCENE AGE OF CORSICAN TURBIDITES

Rivista Italiana di Paleontologia e Stratigrafia, 2017
A  detailed  biostratigraphical  study  based on  calcareous nannofossils  has been carried out on  the following Cretaceous-Eocene  flysch of Alpine Corsica:  Macinaggio Flysch, Tralonca  Flysch,  Vezzani Flysch,  Balagne Calcareous  Flysch,  Lydienne  (
MARIA MARINO, SIMONETTA MONECHI, GIANFRANCO PRINCIPI   +2 more
doaj   +1 more source

Evolution in arid environments: the role of betalains, succulence, and medullary bundles

New Phytologist, EarlyView.
Overview of the study system. Summary The flowering plant clade Caryophyllales includes many succulent species that grow in drought conditions. Many Caryophyllales species also have betalain pigmentation and medullary bundles, both of which have been linked to stress tolerance, albeit with less precise functional characterisation.
Tom Carruthers, Samuel F. Brockington, Hiroshi A. Maeda, Gregory W. Stull, Nathanael Walker‐Hale, Ya Yang, Stephen A. Smith   +6 more
wiley   +1 more source