cant be normal about Cenozoic molluscan taxonomy I’m so so sorry
Jean-François Cudennec
@limpetnerd.eurosky.social
🔬 Limpet scientist (PhD) | Marine biology, paleontology & coastal archaeology 📸 Also nature photographer https://www.instagram.com/jfcudennec?igsh=MW9mbGVpdzF0YXdrcA%3D%3D&utm_source=qr
DeepBio@Leeds' @barankarapunar.bsky.social publishes cool science on new marine vertebrate fossils from the Dolomites indicate that apex predators reappeared rapidly after the P–Tr mass extinction, earlier than previously thought. www.tandfonline.com/doi/full/10.... @palaeoleeds.bsky.social
New insights into the extinction and recovery of marine vertebrates across the Permian–Triassic mass extinction event in the Dolomites, Southern Alps, Italy
The impact of the Permian–Triassic mass extinction on marine vertebrates is incompletely understood due to their scarce fossil record. To better understand marine vertebrate extinction and recovery...
tandfonline.com
I missed #MolluskMonday this week, so #FossilFriday is doing double duty with a small inoceramid. These bivalves could grow well over a meter across in the Cretaceous Interior Seaway, and it is generally suspected that they harbored some variety of sulfur metabolizing bacteria as chemosymbiotes. ⚒️🧪🦪
The vertical design (D) has a very cool detail : the species’ call is also represented
Jean-François Cudennec@limpetnerd.eurosky.social · 2w agoCompletely obsessed by these euro banknote design proposals 🦉 Ursula, give us the bird money !
The bluest blue I’ve ever seen 💙 Gentiana sp. (Brachyphylla maybe?)
Completely obsessed by these euro banknote design proposals 🦉 Ursula, give us the bird money !
#MolluscMonday: the diamond-shaped cross section of a Pinna shell in life position, silicified and infilled with chalcedony. Lower Lias (Early Jurassic), Glamorgan coast, South Wales.
This summer the fields turned yellow, the beaches turned green and the only thing left to harvest is what rots in the sand. But Argentina lost, so it’s all good.
Yeah intensive livestock farming may be a monstrosity against animal welfare and both a climatic sanitary plague, but at least coastal ecosystems are devastated.
#FossilFriday‼️ 😲 Who does not like a well-preserved, large Cretaceous oyster like this Exogyra ponderosa? This one comes even with a repair scar! Campanian-aged Demopolis Formation, Alabama. Specimen: The University of Alabama Museums Research & Collections. #paleontology #fossil
Where intertidal rocky reefs are composed of “soft” rock - such as the sedimentary mudstones and sandstones of the Point Arena Formation in Mendocino County, California - sea urchins create circular niches by abrading the substratum. #MarineLife #SwelterShelterNSF 🌊🦑
Anthropocene is cancelled. Welcome to Pyrocene 🔥
Limpets graze biofilm using their radula, a tongue like structure covered in tiny teeth, leaving specific markings on the rocks. Modelling works shows that these animals are close to the optimum when it comes to cover a surface by crawling, and without passing two time on the same spot 🦑🌊🌍🌿
End of heatwave has been postponed, again. And another one has been scheduled for the end of July. Dreaming of « The atrium of a Roman house during heavy rain » by Luigi Bazzani, 1882.
Scaphopods were also widely used as ornaments by prehistoric people: with an opening on both ends of the shell, they are particularly convenient to hang on a thread. But since they’re underwater critters, they were usually digged from fossil beds (happened at least in France and N. America)
Dr. Sven N. Nielsen@snnielsen.bsky.social · 4w agoDaily mollusk - Scaphopods, also known as tusk shells, are among the less known classes of mollusks. Their tube shells are open on both ends. They breathe, defecate etc. at the smaller end which protrudes from the sediment, while they feed at the larger end, where also the foot is located 🧪
1/ Yay, Coralline Crag mentioned ! 🎉 This formation contains puzzling evidences for both warm and cold climates, and since the Pliocene is a good analog for a +2 °C/450 ppm CO2 planet, understanding what’s happening there is crucial for…
Paul D. Taylor@nhmbryozoa.bsky.social · 4w ago#FossilFriday Illustration from Charles Lyell’s ‘The Student’s Elements of Geology’ (1871) of the Coralline Crag (Pliocene) bryozoan Meandropora aurantium. The fractured colony in figure b shows growth banding, perhaps representing annual growth increments.
My optimistic side wants to think that if my Discover feed is so lame, it’s because of the algorithm, not because people here are intrinsically boring.
Look at these 🏺 pictures 🤩
Archaeology News Online Magazine@archaeologynews.bsky.social · 4w agoThree Byzantine shipwrecks found off Turkey reveal centuries of Mediterranean trade Three shipwrecks lying deep beneath the waters off southwestern Turkey are helping archaeologists piece together the story of Byzantine trade across the eastern Mediterranean... archaeologymag.com/2026/06/thre...
You liked the flash flood ? I hope you’ll like the flash drought
France: just endured two consecutive historic heatwaves, with a third on the way (and it’s not even July yet) French authorities: don’t address the criticism about mass mortality and lack of preparation, but give the green light to a controversial climate-wrecking highway project.
My little limpets are in the spotlight again! 🐚 Few weeks ago I got to share my passion for these remarkable molluscs with BBC Springwatch who dedicated a few minutes of airtime to this humble mollusc.. Watch it here (VPN needed if you're outside the UK) 👇 🌊🧪🦑🌿🌍
BBC Two - Springwatch, 2026, Episode 10
The nests at National Trust Crom are bursting at the seams with fledging chicks.
bbc.co.uk
Climate.us is officially live! After NOAA ended Climate.gov’s day-to-day operations in 2025, former team members built Climate.us to carry that work forward. Their explanations and graphics have always stood out to me as clear, accessible, and transparent. I’m really looking forward to this reboot.
Climate.us Home
independent, nonprofit, and immune to politics
climate.us
Careful with all the AMOC fuss. It's a mathematical construction, not a "conveyor belt". For now its decline is well below natural variability. And no "dramatic AMOC collapse" will save Europe from heatwaves. If anything, a weaker AMOC may even worsen these events.
Blue Tsunami 📌@bluefuture.bsky.social · last mo.Global warming is real, and even if this flips because of the AMOC collapse, that won't change that.
Looking at these graphs, thinking of my kids
Economy and ecology are the same word: oikos, the household. One runs it, one reads it. The tragedy of the commons is where the halves grind. Hardin said shared resources are doomed & competition is inherently unstable. A crowded Breton rock full of limpets proves him wrong twice👇 🌊🦑🌍
A Natural History of Limpets, Part 4: The Commons on the Rock
Three species, one crowded rock, and the resource an earlier episode called the scarcest of all. Garrett Hardin predicted ruin here twice. The shore refused him both times.
open.substack.com
🌊 À l'interface entre terre et mer, l'estran se découvre et se recouvre au rythme des marées. Zone refuge, abri pour la biodiversité, gardienne de vestiges archéologiques : ce milieu joue un rôle important dans le littoral breton.
L’estran, au rythme des marées | Sciences Ouest
À l’interface entre la terre et la mer se dessine un milieu unique en son genre. Tour à tour découvert et recouvert par l’océan, il évolue au rythme des marées, abritant une biodiversité riche et comp...
espace-sciences.org