Results 161 to 170 of about 1,910 (210)

The Lower Cretaceous (Berriasian and Valanginian) in NW Germany

Cretaceous Research, 1996
Abstract The non-marine sedimentary successions of the Berriasian and lower Valanginian of NW Germany are described. The stratigraphical distribution of ostracods allow this interval to be subdivided into 10 biozones, which can be used for regional correlation in the central part of the NW German Basin.
Jörg Mutterlose
exaly   +2 more sources

Berriasian (Lower Cretaceous) brachiopods from the Crimea

Stratigraphy and Geological Correlation, 2006
Four successive assemblages of Berriasian brachiopods distinguished for the first time in the Crimea are correlated with concurrent subdivisions of the ammonoid scale. Berriasian brachiopods are represented by 44 species of 27 genera and 14 families, which are most complete in terms of taxonomic composition as compared to other concurrent brachiopod ...
T N Smirnova, Smirnova T N
exaly   +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

Volumina 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, Mohamed Benzaggagh, Serge Ferry   +2 more
openaire   +2 more sources

Biostratigraphy and magnetostratigraphy of the upper Tithonian–Berriasian of the Crimean Mountains [PDF]

Cretaceous Research, 2018
Abstract Our data from studies over many years on upper Tithonian–Berriasian strata of the Crimean Mountains are summarised. Their zonal subdivision has been significantly refined using ammonites and foraminifera, as well as on the basis of calpionellid, ostracod and dinocyst distributions.
Vladimir Arkadiev, Andrey Guzhikov, Evgenyi Baraboshkin, Juliya Savelieva, Anna Feodorova, Olga Shurekova, Egor Platonov, Aleksey Manikin   +7 more
openaire   +2 more sources

The Berriasian Tirnovella occitanica Zone in the Feodosia Area (Eastern Crimea)

Moscow University Geology Bulletin, 2019
The occurrence of the Tirnovella occitanica Ammonite Zone in the Berriasian section of Feodosia was confirmed here for the first time. The results of sedimentological, bio-, and magnetostratigraphic study of this interval are discussed.
A Yu Guzhikov, E E Baraboshkin, Baraboshkin E Yu   +2 more
exaly   +2 more sources

Revision of the ammonite index species Berriasella jacobi Mazenot, 1939 and its consequences for the biostratigraphy of the Berriasian Stage

Cretaceous Research, 2016
International audienceBerriasella jacobi is a key ammonite taxon that has been widely used for the definition of the Tithoniani Berriasian boundary and has been widely quoted in the literature as the index species for the lowest zone of the Berriasian ...
Camille Frau, Luc G Bulot, Daniela Reháková   +2 more
exaly   +2 more sources

Early Berriasian ammonites from Shal, Talesh region (NW Alborz Mountains, Iran)

Cretaceous Research, 2012
International audienceAn early Berriasian (Berriasella jacobi Zone) ammonite fauna is described for the first time from the Alborz Mountains in northwest Iran.
Kazem Seyed-Emami, Mohamed Benzaggagh, Mahmoud Reza Majidifard   +2 more
exaly   +2 more sources

Magnetic susceptibility and spectral gamma logs in the Tithonian–Berriasian pelagic carbonates in the Tatra Mts (Western Carpathians, Poland): Palaeoenvironmental changes at the Jurassic/Cretaceous boundary

Cretaceous Research, 2013
International audienceUpper Tithonian–Berriasian pelagic carbonates in the Central Western Carpathians, Tatra Mts (southern Poland), with well-established bio- and magnetostratigraphy, provide excellent possibilities of testing magnetic and geochemical ...
Jacek Grabowski, Katarzyna Sobien, Petr Schnabl   +2 more
exaly   +2 more sources

Palaeobiogeography of Early Cretaceous (Berriasian–Barremian) calcareous nannoplankton

Marine Micropaleontology, 2000
In order to assess Early Cretaceous nannoplankton biogeography, we studied a series of sites which provide a north-south transect across the Atlantic Ocean, supplemented by sections from the North Sea Basin, Barents Sea, Falkland Plateau, Weddell Sea (Antarctica), Argo Abyssal Plain (NW of Australia) and Neuquen Basin (Argentina).
C. Street, P.R. Bown
openaire   +1 more source

Reconstruction of a berriasian lacustrine paleoenvironment in the Cameros basin (Spain)

Palaeogeography, Palaeoclimatology, Palaeoecology, 1989
Abstract From Kimmeridgian to Valanginian, the northern part of the Iberian plate broke up into several graben systems, one of which is the Cameros basin in the northwestern part of the Iberian Range. The infill consists of fluvial-clastic and lacustrine or evaporitic carbonate rocks. During the Berriasian, a lacustrine complex developed.
Marina Normati, Jean Salomon
openaire   +1 more source