Results 11 to 20 of about 2,451 (206)

Tithonian-berriasian beds of dedine stream near Golubac [PDF]

open access: yesGlasnik Srpskog Geografskog Društva, 2007
The possibilities for stratigraphical precision between the Upper Jurassic and the Lower Cretaceous in pelagic development are considered for the locality of Dedine stream.
Carević Ivana, Jovanović Velimir
doaj   +4 more sources

Ammonites and magnetostratigraphy of the Berriasian–Valanginian boundary deposits from eastern Crimea

open access: yesGeologica Carpathica, 2017
Euthymi, Crassicostatum and Callisto ammonite subzones, correlable with Paramimounum, Picteti, and Alpillensis subzones and probably with the Late Berriasian Otopeta Subzone of the Boissieri Standard Zone have been recognized in calcareous clays of the ...
Arkadiev Vladimir V.   +6 more
doaj   +3 more sources

Microbiostratigraphy of the Berriasian–Valanginian boundary in eastern Crimea: foraminifers, ostracods, organic-walled dinoflagellate cysts

open access: yesGeologica Carpathica, 2017
Thorough study of foraminifers, ostracods and dinoflagellate remnants from the Zavodskaya Balka and Koklyuk sections helps to characterize the detailed biostratigraphic division of the Berriasian / Valanginian boundary sequence in the Feodosiya district ...
Savelieva Yuliya N.   +4 more
doaj   +3 more sources

Insect and Plant Diversity in Hot-Spring Ecosystems during the Jurassic-Cretaceous Boundary from Spain (Aguilar Fm., Palencia) [PDF]

open access: yesBiology, 2022
Hydrothermal palaeoenvironments are very uncommon in Upper Jurassic and Lower Cretaceous deposits worldwide. We present new plant and insect remains from travertines formed during the Jurassic-Cretaceous boundary in northern Spain (Aguilar Fm., Palencia ...
Artai A. Santos   +5 more
doaj   +2 more sources

High-precision U–Pb ages in the early Tithonian to early Berriasian and implications for the numerical age of the Jurassic–Cretaceous boundary [PDF]

open access: yesSolid Earth, 2019
The numerical age of the Jurassic–Cretaceous boundary has been controversial and difficult to determine. In this study, we present high-precision U–Pb geochronological data around the Jurassic–Cretaceous boundary in two distinct sections from different ...
L. Lena   +10 more
doaj   +3 more sources

Lower Cretaceous (Berriasian-Aptian) biostratigraphy of the Neuquén Basin [PDF]

open access: yesGeological Society, London, Special Publications, 2005
Abstract The Berriasian-Aptian succession in the Neuquén Basin is mainly marine in the lower part and non-marine in the upper portion. A detailed ammonite zonation is presented for the Berriasian-?Early Barremian interval. While some ammonite taxa are endemic, others are widely distributed and there are several levels where correlation can be
Aguirre-Urreta, Maria Beatriz   +4 more
openaire   +3 more sources

Some perisphinctoid ammonites of the Štramberk Limestone and their dating with associated microfossils (Tithonian to Lower Berriasian, Outer Western Carpathians, Czech Republic) [PDF]

open access: yesGeologica Carpathica, 2017
The present contribution deals with the taxonomy of seven species of perisphinctoid ammonite from the Štramberk Limestone (Outer Western Carpathians, Czech Republic) deposited in Moravian-Silesian museums.
Vašíček Zdeněk   +2 more
doaj   +2 more sources

Discriminating between medium-sized Tridactyl Trackmakers: tracking Ornithopod tracks in the base of the Cretaceous (Berriasian, Spain). [PDF]

open access: yesPLoS ONE, 2013
BackgroundRecent work on the Jurassic-Cretaceous transition of the Iberian Range (Spain) has opened a new window onto the interpretation of the trackmakers of some medium-sized tridactyl tracks. The ichnotaxon Therangospodus oncalensis has been described
Diego Castanera   +5 more
doaj   +3 more sources

CALCAREOUS NANNOFOSSIL BIOSTRATIGRAPHY OF UPPER CALLOVIAN-LOWER BERRIASIAN SUCCESSIONS FROM THE SOUTHERN ALPS, NORTH ITALY

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2010
Calcareous nannofossil biostratigraphy was investigated in uppermost Callovian-lower Berriasian sections from Southern Alps, previously detected through magnetostratigraphy, in order to achieve an integrated stratigraphic framework valid at low latitudes.
CRISTINA EMANUELA CASELLATO
doaj   +2 more sources

Revised holostratigraphy of the Tithonian-Berriasian transition at Tré Maroua (Le Saix, Hautes-Alpes, SE France): Study of a rejected Berriasian GSSP candidate [PDF]

open access: yesVolumina Jurassica, 2023
The study of the Tithonian and lower Berriasian succession of Le Saix (Hautes-Alpes, France) has made it possible to better characterize the lithological succession at a former Berriasian GSSP candidate, its set of microfacies, the stratigraphic ranges of the main groups of marine plankton and therefore the calpionellid and saccocomid biozonations.
Bruno Granier   +2 more
openaire   +2 more sources

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