To all foram lovers: have you seen the latest FORCIS-based paper led by @soniachaabane.bsky.social?
doi.org/10.5194/jm-4...
With @juliemeilland.bsky.social, @sulpis.bsky.social, @chalkyoceans.bsky.social, and @tdegaridel.bsky.social.
@climatecerege.bsky.social
🧪 ⚒️ 🌊 👩🔬
#ForamFriday
#FossilFriday
@univ-amu.fr PhD student V. Guarinos recently submitted a paper as first author.
🔗 to his @egu.eu preprint under review for @egubg.bsky.social:
doi.org/10.5194/egus...
With his PhD supervisors K. Tachikawa and @chalkyoceans.bsky.social at @climatecerege.bsky.social.
🧪 ⚒️ 🌊
#ForamFriday
#FossilFriday
#FossilFriday Microfosils sent as #Christmas cards by Arthur Earland (1866-1958) to his collaborator Edward Heron-Allen #foramfriday #microfossils #histsci wp.me/p3ihHu-cX
Happy #FossilFriday and #ForamFriday
Check out these beautiful #fusulinids found on a bench in downtown #Columbia #Missouri #indexfossil #foraminifera
#urbanpaleontology
Day39 of photoshopping @lastweektonight.com's John Oliver with fossils in the hopes that he saves the Paleontological Research Institution
The concept of an armored protozoan you can see with the naked eye may be unsettling, but the fusilinids can't hurt our H. sapiens! #foramfriday #fossilfriday 🧪
#ForamFriday -- love it! Thanks for sharing!
It's #ForamFriday! They're bizarre and beautiful, and their fossilized shells are a window into the past!
UTIG's @chrislowery.bsky.social talked with @knowablemag.bsky.social about what forams can tell us about mass extinctions and climate change.
Read more: knowablemagazine.org/content/arti...
Figure 1 from Faulkner et al., 2025, showing proportion of wall type from the Cambrian 500 million years ago to today. Agglutinated and organic-walled foraminifera were dominant in the Cambrian and Ordovician. Calcareous walled taxa appeared in the Ordovician and quickly increased in diversity, representing about 60% of all genera by the end of the Devonian. This remained constant until the end Permian Mass extinction, when many calcareous walled genera disappeared, and agglutinated foraminifera briefly dominated. In the Triassic, Jurassic, and Cretaceous, agglutinated foraminifera made up about 55-60% of all foram genera, but slowly declined through the Late Cretaceous to today, as calcareous foraminifera became more diverse.
Happy #ForamFriday, here's a fresh new paper from former UT undergrad Katherine Faulkner published this week in Proceedings B, about how the number of calcareous and agglutinated foram genera has changed over the Phanerozoic, and what that means: royalsocietypublishing.org/doi/10.1098/...
A scanning electron micrograph of a bunch of sedimentary particles scattered on carbon tape. Most of the intact foraminifera are from the genus Globigerinatheka, which are large, round, and have multiple supplementary apertures around their test. Their surface is rough and porous. A few other planktic foraminifera from other genera can be seen (Subbotina, Parasubbotina), but most of the particles in this image are fragments, broken pieces of foraminiferal tests, that indicate partial, but not complete, dissolution of the shells. Everything that we can see in this image is large and robust.
Happy #ForamFriday here's a bunch of Globigerinatheka and even more fragments from the late Eocene at ODP Site 1265 on Walvis Ridge in the eastern South Atlantic. A classic example of a sub-lysocline assemblage with lots of fragments and a few robust planktic forams.
太陽の砂とも呼ばれるCalcarina gaudichaudii（カルカリナ・ガウディチャウディ）。有孔虫の一種トゲの先から上下に伸びる白く見える繊維状の構造は「仮足」手足のような働きをしています。ブログで紹介しています。
researchmap.jp/Takashi-Toyo...
#foramfriday #太陽の砂 1/3
有孔虫フォトパネル
大きく印刷することで視界を覆い、形態の細かいところまでよく観れる
Foraminifera Photo Panel
Large prints cover the field of view and allow us to see the finest details of the morphology.
#ForamFriday #金曜日だから化石貼る #FossilFriday
#cephalopodawareness October 8 to 12 but there are OTHERS
I think #cephalopodweek is in June? but depends on who..
#octopusFriday
#teuthisTuesday (not used in a long time)
#foramFriday
#flatwormFriday
#Okeanos for NOAA's OE research dives
#seaspiderSaturday
SEM image of a benthic foraminifera.
Hyalinea balthica (Schröter, 1783) x 200 (v small, usually larger) from Loch Sunart. This planispiral evolute #foraminifera is easily distinguished by its thick glassy walls separating the chambers & thick glassy periphery. Likes organic rich seds & cooler waters. (Nearly!) #ForamFriday.
Nicholas Shackleton, English geologist & paleoclimatologist, died #OTD 2006. He was a pioneer in the use of mass spectrometry to determine changes in climate as recorded in the oxygen isotope composition of calcareous #microfossils. 🧪⚒️🔬
wp.me/p3ihHu-su #Foramfriday
#FossilFriday The Egyptian Pyramids are constructed of Eocene aged nummulitic limestone. The thin-section shows Nummulites from the pyramid of Kheops ⚒️🧪🔬
wp.me/p3ihHu-cX #ForamFriday
SEM image of a benthic foraminifera
One for @janeearland.bsky.social!
Like the intricate ice crystals in our sub-zero temperatures here in Staffordshire, here is the delicate Textularia earlandi Parker, 1952 (x 130) from Loch Sunart. I love this fragile, little agglutinated benthic #foraminifera. #ForamFriday
SEM of a benthic foraminifera.
A pretty bauble for the Christmas tree! Favulina hexagona (Williamson, 1848) (x160) from Loch Sunart, NW Scotland, UK. (Used to be Oolina hexagona). #ForamFriday #Festivefossils
SEM image of a benthic foraminifera.
This benthic #foraminifera always reminds me of an upside down Christmas tree! Bulimina marginata d'Orbigny, 1826 (x 100, shown aperture down for tree-ness!) from Loch Sunart. Found in stratified waters in Sunart. Also linked to high organic matter. #ForamFriday #Seasonsgreetings!
SEM image of a benthic foraminifera
Spiroplectinella wrightii (Silvestri, 1903) x 90 from Loch Sunart. Funny angle but shows aperture. Not great images tbh! But it's nearly Christmas!🎄 #ForamFriday
SEM image of a benthic foraminifera - looks a bit like a Christmas tree in shape!
It's nearly time! Christmas tree candidate #1! Spiroplectinella wrightii (Silvestri, 1903) (was Spiroplectammina wrightii) x 55 from Loch Sunart. A common UK shelf benthic #foraminifera species; groups with other taxa that suggest saline waters & higher energy environments. #ForamFriday
SEM image of an agglutinated benthic foraminifera
#ForamFriday: continuing with how amazing agglutinated #foraminifera are & how they are very particular when it comes to grains used to build their test... here is Ammoscalaria runiana (Heron-Allen & Earland, 1916) x 80 from Loch Sunart, Scotland. This #foram likes them chunky!
a scanning electron micrograph of a Globorotalia margaritae. Specifically, an umbilical view showing pores, a bit of surface dissolution, and big pustules on the first three chambers of the final whorl. The outline is slightly lobate with the big last chamber typical of this species. The aperture extends from the periphery to the umbilicus, and is a low slit with a very narrow lip.
I did not touch my work computer last Friday so here's a special cyber Monday edition of #ForamFriday featuring a Globorotalia margaritae from IODP Site U1559 in the western South Atlantic
SEM image of a benthic foraminifera.
Recurvoides trochamminiformis Höglund, 1947 (x 200) from Loch Sunart, NW Scotland. I like the way agglutinated #foraminifera can select different grain sizes - here the grain size is much finer around the aperture, giving a distinct edge/lip. #ForamFriday (Ignore the '10' - that's from my plate!)
Sounds like a #foramFriday project! It doesn’t take that long if you have the pictures handy
A greyscale SEM image of a benthic foraminifera on a black background.
I've not posted here for a while but here is a late #ForamFriday! Cassidulina obtusa Williamson, 1858. x250. Loch Sunart, Scotland. Usually found in more temperate waters. Signature characteristic - that little indent at the top of the aperture.
A scanning electron micrograph of Hantkenina australis. It's a planispiral planktic foraminifera with tubulospines at the end of its chambers, the last of which are curved backwards.
Happy #ForamFriday here's a Hantkenina australis, just for you
A scanning electron micrograph of a P. Alabamensis. This is an umbilical view. It has 4 chambers, straight, depressed sutures, and an extra-umbilical aperture with a clear rim. Also if you zoom in you can see tiny pores.
Can I interest you in a Parvularugoglobigerina alabamensis in these trying times? #ForamFriday
