Single-cell #Foraminifera are not just passive recorders of #ClimateChange; they also play a role in understanding and even informing climate adaptation strategies.

https://knowledgezone.co.in/posts/Foraminifera-and-Climate-Change-67f547a55b2218433551cb24

Listen to my talk on our physical Foraminifera Collection on youtube at:

https://www.youtube.com/watch?v=WX3KZjA1bso

#foraminifera #microfossils #fossil #MarineLife #paleontology #MarineScience #palaeontology #shell

We are looking for a motivated student interested in the benthic ecosystem functioning for a PhD project on meiobenthos motion traits :
https://amethis.doctorat.org/amethis-client/prd/consulter/offre/1087
Please reach out if you have any questions
#phdPosition
#meiobenthos #foraminifera #meiofauna #bioturbation

Globigerinoidesella fistulosa is one of the crazier looking #foraminifera we had in the #ocean, it has these digits growing out of it, and it all seems to be related to changes in growth patterns relative to its ancestor.

https://www.cambridge.org/core/journals/paleobiology/article/heterochrony-in-the-evolution-of-the-planktonic-foraminifer-globigerinoidesella-fistulosa-from-the-trilobatus-sacculifer-plexus/8BF3CB9DF4A2FCFA0AA10E1DBED62686

I'm happy to share this new paper describing long-term kleptoplasty in benthic foraminifera.
https://www.sciencedirect.com/science/article/pii/S2589004225002883
#foraminifera #symbiosis #kleptoplasty

New insights into the structure of some of the oldest lineages for #foraminifera may open the door to unlocking temperature and #climate records much further back in time.
https://www.pnas.org/doi/10.1073/pnas.2413054122

Ancient marine organism's dual-layer structure reveals both past and present ocean environments https://phys.org/news/2025-02-ancient-marine-dual-layer-reveals.html

A cosmopolitan calcifying benthic #foraminifera in agglutinated disguise as a geochemical recorder of coastal environments https://www.pnas.org/doi/10.1073/pnas.2413054122

"This species has a remarkable hidden feature—an inner shell made of calcium carbonate beneath its outer layer of gathered particles... [this] made them an excellent recorder of environmental conditions."

#Protists #Microbes

Exploring macroevolutionary links in multi-species #planktonic #foraminifera Mg∕Ca and stable #oxygen #isotope from 15 Ma to recent @EGU_BioGeo https://bg.copernicus.org/articles/22/1095/2025/

These days we have passed the 23,000 mark in our database. A big thank you to our contributors from all over the world for sending sediments, specimens, images and help with identifications. #foraminifera #microfossils #fossils #paleontology #MarineLife #MarineScience

Some #foraminifera can get rather big (esp. in deeper #water), and when they do, they have a tendency to be rather flat. A lot of it might have do to with scarcity of food and reliance on endosymbionts for energy.
Basically, if most #energy comes from the photosynthetic endosymbionts, the test flattens out to maximize the area in which the energy from above could be absorbed.
https://onlinelibrary.wiley.com/doi/full/10.1111/sed.12837

New research on #protists sheds light on #DeepSea energy sources https://www.whoi.edu/press-room/news-release/foraminifer/

Array of metabolic pathways in kleptoplastidic #foraminifera supports #chemoautotrophy in dark, euxinic seafloor sediments https://academic.oup.com/ismej/article/19/1/wrae248/7923457 by Fatma Gomaa et al.

"This species takes up unrelated organism’s #chloroplasts — #organelles that perform #photosynthesis... We know #kleptoplasty is happening here, but we needed to understand why this foraminifer is so successful in the dark, without oxygen"

Next Monday 13 we have the 6th session of The Life of Retaria Seminar Series!
Join us at 08h00 (CET) and discover symbiosis in these wonderful protists with Caroline Juery and Filip Husnik
Check it out: https://thelifeofretaria.github.io/
#radiolaria #foraminifera #theLifeOfRetaria #protistsonsky

Foraminifera or just pseudofossil rock chips ???
I picked about 50 specimens from 10g of a disintegrated Jurassic shale. I think these are compressed agglutinated forams. Whats your opinion ? #foraminifera #microfossils #Jurassic #fossils #MarineLife #paleontology

I found several shallow water foraminifera as this Ammonia in a sand from the German Pre-Alps. They prove its marine origin from the Paratethys ocean. The Paratethys covered about 18mya ago vast areas north of the Alps. #foraminifera #MarineLife #fossils #microfossils #Miocene

Today under the microscope aged ~155.000.000 years old: The foraminifera Epistomina ornata (I think) from the Kimmeridgian, Dorset coast, UK. See more at https://foraminifera.eu/single.php?no=1025377&aktion=suche

#foraminifera #microfossil #micropalaeontology #Jurassic #microscopy

Are you looking for a #postdoc in marine sciences ?
Please check out IFREMER call:
https://en.ifremer.fr/Research-Technology/Scientific-strategy/Join-Ifremer-and-Shape-the-Future-of-Marine-Science
If you're interested in #biogeochemistry #symbiosis #deepsea #foraminifera or #bioturbation feel free to reach out. I'd be happy to support your application.
#PostdocFellowships

Are past #ocean #temperature #reconstructions based on #geochemical indicators representative at the #local and #regional scales, as such reconstructions typically rely on a single #sediment core?
This new #scientific #publication—not co-authored by me—addresses this #question:
https://doi.org/10.1186/s40645-024-00664-5
#Science
#ScienceMastodon #AcademicMastodon
#PaleoClimate #SeaTemperature #SeaSurfaceTemperature #SST
#Geochemistry #Foraminifera #MgCa #Biomarkers #Alkenones #GDGTs #isoGDGTs

Weekend #Plankton #Factoid 🦠🦐
You may have seen reports about how plankton can't adapt quickly enough to #ClimateChange due of acidification. This @ConversationUS article explains how they used deposits of fossil #Foraminifera, a type of carbonate shelled amoeba #zooplankton to track change since the ice age. Forams with algal symbionts are vital to sequestering #carbon. They found poleward shifts are required away from the tropics, but warming now is too rapid. #science
https://theconversation.com/tiny-oceanic-plankton-adapted-to-warming-during-the-last-ice-age-but-probably-wont-survive-future-climate-change-new-study-243317

The foraminifera Nodosaria lagenifera. See more at https://foraminifera.eu/collection.php?collname=Geological+Survey+of+Norway&aktion=suche #foraminifera #marinelife

The great #diversity of shapes of #foraminifera – These small creatures belong to the group of calcareous #marine organisms, which are especially affected by #ocean #acidification WorldOceanReview https://worldoceanreview.com/en/wor-8/the-role-of-the-ocean-in-the-global-carbon-cyclee/how-the-ocean-absorbs-carbon-dioxide/