Results 11 to 20 of about 14,488 (288)

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   +2 more sources

New robertinid foraminifers from the Early Jurassic of Adnet, Austria and their evolutionary importance [PDF]

open access: yesActa Palaeontologica Polonica, 2016
New benthic multichambered foraminifers have been discovered in the Hettangian–Sinemurian of the Northern Calcareous Alps (Adnet, Salzburg, Austria). Originally aragonitic, these forms are completely recrystallized but the early impregnation of their ...
Sylvain Rigaud, Joachim Blau
doaj   +2 more sources

Diversity patterns and palaeobiogeographical relationships of latest Devonian–Lower Carboniferous foraminifers from South China: What is global, what is local?

open access: yesJournal of Palaeogeography, 2014
During latest Devonian and early Carboniferous times, calcareous foraminifers were abundant, widely distributed, and showed the most rapid rate of evolution in the shallow-sea deposits. These factors, especially their fast phylogenetic changes, make them
Markus Aretz   +2 more
doaj   +2 more sources

Foraminifers associated with macroalgae on a wave-cut platform off Abu Qir coastal area, Egypt

open access: yesEgyptian Journal of Aquatic Research, 2022
Since their earliest history, benthic foraminifers have diversified to inhabit a vast array of habitats, from semi-terrestrial to the deep-sea floor. Epiphytic foraminifers developed morphologies that have allowed them to inhabit macroalgal fronds and ...
Ahmed M Badreldin
exaly   +3 more sources

Application of foraminifers in ecotoxicology: Retrospect, perspect and prospect

open access: yesEnvironment International, 2006
In view of the extensive use of foraminifers for the pollution monitoring especially their unmatched utility in deciphering the temporal variation in the type and concentration of pollutants at a given location, the literature dealing with the application of foraminifers for pollution studies has been reviewed.
R Nigam, Rajeev Saraswat
exaly   +3 more sources

Marine Anoxia and Ocean Acidification During the End‐Permian Extinction

open access: yesGeophysical Monograph Series, Page 325-340., 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.
Ying Cui   +4 more
wiley  

+4 more sources

Borings formed by Late Cretaceous endobiontic foraminifers within larger benthic foraminifers

open access: yes, 2002
Nielsen, Jan Kresten (2002): Borings formed by Late Cretaceous endobiontic foraminifers within larger benthic foraminifers.
Nielsen, Jan Kresten, Nielsen, J K
openaire   +3 more sources

Some Late Cretaceous agglutinated foraminifers from the Northern outskirts of Donbas, Ukraine

open access: yesGeo&Bio, 2023
The article describes four species of agglutinated foraminifers belonging to three genera (Verneuilina, Orbignyna, and Spiroplectammina) three superfamilies (Verneuilinoidea, Ataxophragmoidea, and Spiroplectamminoidea) and two orders (Ataxophragmiida and
Olena Veklych
doaj   +1 more source

Palaeoenvironmental changes based on foraminifera during the late Holocene at the Beagle Channel, Argentina

open access: yesAnais da Academia Brasileira de Ciências, 2022
A foraminiferal faunal study was carried out in a Holocene marine section from Arroyo Baliza, located on the northwest coast of the Beagle Channel, to contribute to the knowledge of the palaeoenvironmental conditions during the marine Holocene event ...
EMILIANA BERNASCONI   +2 more
doaj   +1 more source

The Bartonian-Priabonian marine record of the eastern South Pyrenean foreland basin (NE Spain): a new calibration of the larger foraminifers and calcareous nannofossil biozonation

open access: yesGeologica Acta, 2013
This study presents a combined biostratigraphic (calcareous nannofossils, larger foraminifers) and magnetostratigraphic study of the Middle and Late Eocene marine units of the Igualada area, eastern Ebro Basin.
E. COSTA   +6 more
doaj   +2 more sources

Home - About - Disclaimer - Privacy