A fundamental study on the compositional resolution of the marine fossil record. What range of time scales are represented in typical fossil samples? "TA [Time Averaging]... scaled proportionally with ...an inverse of sediment accumulation rate" www.pnas.org/doi/10.1073/... 🧪⚒️ #Geology #Paleobio

Popular retelling on our recent study of the biotic vulnerability: www.open.ac.uk/blogs/news/s...

The Open University

open.ac.uk

Glad to share our new study at @natcomms.nature.com which resulted from several workshops on the early warning signs of mass extinctions and coordination of macroevolutionary vulnerability and the states of carbon cycle and temperatures. www.nature.com/articles/s41... 🧪⚒️ #Geology #Paleobio #EvoBio

Interesting discussion on the "speed without understanding as a delayed disaster" in AI programming. I think similar thing recurs in science. In evo-bio it occurred already in XIX century. www.youtube.com/watch?v=3o2S... 🧪 #EvoBio #Paleobio

The Hidden Cost of AI Coding That's Destroying Engineering Teams

YouTube video by The Serious CTO

youtube.com

When you visit Curonian Spit, you can find a sizable colony of~5000 cormorants. You can immediately see their effects of massive nutrient flow of guano. Flock of birds as the original inspiration (airborne geological formation) for the biogeochemistry by Vladimir Vernadsky. 🧪⚒️ #Geology #Ornithology

Cambrian explosion modulated by the spatial structure of biota: "...faunal differentiation is not organized as a continuous latitudinal gradient, but instead reflects regionalization..." www.lyellcollection.org/doi/abs/10.1... 🧪⚒️ #Geology #Paleobio

Blanketing effects of fine dust which condensed just after the K-Pg impact. The dust enhanced (by reflecting thermal radiation backwards) the microspherule re-entry-caused heating of the Earth's surface, which caused global fires agupubs.onlinelibrary.wiley.com/doi/epdf/10.... 🧪⚒️ #Geology #Paleobio

An important event for all people interested in paleo- and evo- things: 🧪⚒️ #Geology #Paleobio #EvoBio

The Neotoma Paleoecology Database@neotomadb.bsky.social · 4d ago

📢 NAPC 2028 | 13th North American Paleontological Convention | Knoxville, Tennessee, USA The 13th North American Paleontological Convention (NAPC 2028) will take place from 22–26 May 2028 in Knoxville, Tennessee, USA, hosted by the University of Tennessee, Knoxville. napc2028.sites.utk.edu

Interesting article on the form and function of dinosaur gizzard tools -- the gastroliths, in the inference of their diets, and the evolution of feeding ecology. www.cambridge.org/core/journal... 🧪⚒️ #Geology #Paleobio #EvoBio

Oak tree bark as a visual metaphor of the geobiome dynamics modulating multi-level allopatry in 1D space (horizontal) and time (vertical). More details: doi.org/10.1017/pab.... 🧪⚒️ #Geology #Paleobio #EvoBio

Internal decline and the final punch of mass extinctions in the extinction of clades. "Once proportional diversity fell below a critical threshold (mean of approximately 0.13), major abiotic perturbations acted as the ‘last straw’," nature.com/articles/s41... 🧪⚒️ #Geology #Paleobio #EvoBio

"appearance of the new apex predator cf. Saurosphargidae relatively soon after the [P\Tr] extinction event coincides with the reappearance of predatory cephalopods and precedes the full ecological and taxonomic recovery of benthic groups in the Dolomites" tandfonline.com/doi/full/10.... 🧪⚒️ #Paleobio

Dark palynomorphs from the dark period of the history of life: "Continental-scale fern savannah wildfires during the end-Triassic mass extinction suggests ...heat stress, and periods of prolonged drought alternating with extreme precipitation..." www.nature.com/articles/s41... 🧪⚒️ #Geology #Paleobio

Every field geologist and paleontologist will understand 😅 🧪⚒️ #Geology #Paleobio

Happy to share this 'capstone' project from my time as a postdoc @umich.edu, where we show that hierarchically nested bursts of body-shape evolution may underlie much of perching-bird diversification over ~50 million years. Free access link here: rdcu.be/fuxB1

Rates of passerine body plan evolution in time and space

Nature Ecology & Evolution - A reconstruction of the evolutionary history of passerine body plans over the past ~50 Myr shows rare bursts of phenotypic innovation near the origin of major...

rdcu.be

Laisvės Alėja (Freedom Alley), Kaunas, Lithuania. Sculpture of geologist [my honest guess]. 🧪⚒️ #Geology

A new study re-evaluating size of the legendary Liopleurodon ferox. This should have been highly-unusual macropredator. Just look at these teeth! Look at the scale. The smallest are the size of lion fangs, and the largest look like tusks. www.tandfonline.com/doi/full/10.... 🧪⚒️ #Geology #Paleobio

"...results contrast with the common view that the geo-logically stable Proterozoic Era experienced little eukaryotic evolutionary innovation and indicate that all current supergroups were already established in the Mesoproterozoic." 🧪⚒️ #Geology #Paleobio

Miguel Méndez Sandín@sandinmm.eurosky.social · 3w ago

Apparently the "boring billion" was actually exciting! We provide molecular evidence of complex Mesoproterozoic eukaryotic communities. So happy to see this out 🥳 Thanks to @phoebefossil.bsky.social , Hélène Morlon & @fburki.bsky.social for a lovely collab! doi.org/10.1073/pnas...

The fossil record of amber really track an "immune system" of plants. The earliest amber from the Middle Devonian of China. www.science.org/doi/10.1126/... 🧪⚒️ #Geology #Paleobio

High-resolution stratigraphical molecular records will enlighten the role of megafaunal collapses in the Late Quaternary: "Rapid shifts disrupted the climate-vegetation-herbivore cascade, causing trophic mismatches." www.sciencedirect.com/science/arti... 🧪⚒️ #Geology #Paleobio

Pterrible ptows

John Moffitt 🌊🌊🧢@johnmoffitt.bsky.social · 3w ago

The pterrible-ptwos are always problematic.

Special, and dearest to my heart, kind of paleontology which is known by very few

The natural history collections at the University of Texas, holding maybe 5 million specimens, is partly closed down because our buildings are falling apart and UT is doing the bare minimum of life support. We could fix it for 1/5th the price of a vanity purchase of a single dinosaur specimen.

AFP News Agency@en.afp.com · 3w ago

🦖 A Tyrannosaurus rex skeleton nicknamed 'Gus' sells for $50.1 million at Sotheby's in New York, making it the most valuable dinosaur fossil bought at auction after a 10-minute battle between seven bidders u.afp.com/SKv4

All biologists should thank uncle Charles 😄

When the LIP volcanism and contact metamorphism work in opposite directions at different time scales: you should expect volatile oscillations between 'nuclear —more precisely metamorphic—winters' and volcanic long-hyperthermal states. www.science.org/doi/pdf/10.1... 🧪⚒️ #Geology #Paleobio

Such a sad news. RIP Sam Neill (1947 – 2026).

A new genus of giant salamanders from Japan-Limnospondylus ajimuensis peerj.com/articles/213... from Pliocene. Currently there are just two genera. Reminds us of significant depletion of taxa during transition to ice ages. One even lived in Europe-Ukrainurus-"Ukrainian tail". 🧪⚒️ #Geology #Paleobio

Really interesting work, which explores the biotic and abiotic #Bretskyan_hierarchy determinants of intraspecific population variability - the fuel of evolution. onlinelibrary.wiley.com/doi/epdf/10.... 🧪 #Geology #EvoBio #Macroecology

This is really interesting. The common cause (of evolution, taphonomy) does deep: "Monsoon-driven storms created a Cretaceous dinosaur Lagerstätte. Microbial mats enabled rapid sealing and exceptional soft-tissue preservation." www.sciencedirect.com/science/arti... 🧪 ⚒️ #Geology #Paleobio

Such an incredible etymology of this legendary tyrannosaur - Tarbosaurus bataar (ancient Greek & Mongolija: "Awesome-lizard hero"). EAVP23, Vilnius. Talk by Justyna Slowiak. 🧪 ⚒️ #Geology #Paleobio