Results 21 to 30 of about 20,902 (254)

Origin of the foraminifera. [PDF]

open access: yesProceedings of the National Academy of Sciences, 1995
We report nuclear small-subunit rDNA sequences for two species of the benthic foraminifer Ammonia. Because of their abundance in present and past seas, the foraminifera are a very important group of organisms used in a wide range of geologic studies; however, the ancestry of this group was, until now, unknown.
John J. Lee   +4 more
openaire   +4 more sources

Impact of carbonate saturation on large Caribbean benthic foraminifera assemblages [PDF]

open access: yesBiogeosciences, 2018
Increasing atmospheric carbon dioxide and its dissolution in seawater have reduced ocean pH and carbonate ion concentrations, with potential implications on calcifying organisms.
A. Martinez   +3 more
doaj   +1 more source

The Occurrence and Distribution of Benthic Foraminifera in Tropical Waters Along the Strait of Malacca

open access: yesFrontiers in Marine Science, 2021
Foraminifera are shelled single-celled protists that are found in all marine environments. Benthic foraminifera either live in sediments or attach to surfaces on the seafloor. Understanding the distribution and ecological response of benthic foraminifera
Fatin Izzati Minhat   +11 more
doaj   +1 more source

Renewal of planktonic foraminifera diversity after the Cretaceous Paleogene mass extinction by benthic colonizers

open access: yesNature Communications, 2022
Planktonic foraminifera are key to understanding paleoclimate and plankton evolution, but their origins are unclear. Here, the authors use a molecular clock to suggest that benthic foraminifera dispersed in plankton and renew planktonic foraminifera ...
Raphaël Morard   +6 more
doaj   +1 more source

Foraminifera associated with cold seeps in marine sediments

open access: yesFrontiers in Marine Science, 2023
Cold seep foraminifera have attracted considerable attention as they provide valuable insights into the study of cold seeps. This study provides a comprehensive overview of the manifestations of foraminifera in cold seep environments and methane seepage ...
Yinghan Lu   +4 more
doaj   +1 more source

The evolution of early Foraminifera [PDF]

open access: yesProceedings of the National Academy of Sciences, 2003
Fossil Foraminifera appear in the Early Cambrian, at about the same time as the first skeletonized metazoans. However, due to the inadequate preservation of early unilocular (single-chambered) foraminiferal tests and difficulties in their identification, the evolution of early foraminifers is poorly understood. By using molecular data from a wide range
Pawlowski, J.   +7 more
openaire   +7 more sources

Subsurface and Infaunal Foraminifera of Kemaman- Chukai Mangrove Swamps, East Coast Peninsular Malaysia

open access: yesOpen Quaternary, 2021
This study analysed the distribution and abundance of dead and live (Rose Bengal stained) infaunal foraminifera from three short cores taken at three locations in the mangrove swamps of Kemaman-Chukai, Terengganu, Malaysia.
Rokiah Suriadi   +4 more
doaj   +1 more source

Biomineralization in perforate foraminifera [PDF]

open access: yesEarth-Science Reviews, 2014
In this paper, we review the current understanding of biomineralization in perforate foraminifera. Ideas on the mechanisms responsible for the flux of Ca2 + and inorganic carbon from seawater into the test were originally based on light and electron microscopic observations of calcifying foraminifera.
de Nooijer, LJ   +4 more
openaire   +5 more sources

Planktonic foraminifera fluxes and their response to the Asian Monsoon: insights from the Maldives, Indian Ocean

open access: yesFrontiers in Earth Science, 2023
This study describes seasonal changes in the fluxes of planktonic foraminifera in response to changes in environmental conditions during the Asian Monsoon.
Maria Caezare Mae R. Cariño   +8 more
doaj   +1 more source

Eocene foraminiferal biofacies in Kutch Basin (India) in context of palaeoclimate and palaeoecology

open access: yesJournal of Palaeogeography, 2019
The Eocene Epoch passed through multiple hyperthermal events and recorded highest temperatures in the Cenozoic. Very few studies from Eocene palaeotropical sites have recorded changes in shallow marine foraminiferal assemblages.
Sonal Khanolkar, Pratul Kumar Saraswati
doaj   +1 more source

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