Bird footprint in concrete

Neo-ichnofossil of modern aviną dinosaur (bird) feet imprints in the concrete floor of the Munich train station.
🧪 ⚒️ #Geology #Paleobio

Proportions of problems related in submissions.

Important article on the practices of article writing, submission and troublesome reproducibility of the fossil vertebrate phylogenies.
In my view, most see phylogenies as eternally provisionary and probabilistic pictures.
www.tandfonline.com/doi/epdf/10....
🧪 ⚒️ #Geology #Paleobio #EvoBio

They are usually preserved as tempestite layers, which shape would be very difficult to determine exactly due to their small thickness scale and sketchy preservation as event bodies.

Thank you, very interesting. This kind of catastrophe will create a concentric trace around the margin. Depending on the properties and shapes of slopes, maybe -- toungue like trace.

Tornado Tracks

Is there a survey which explores the shapes of disasters in real geographical space? I mean, asteroid will do the damage similar to a giant bomb -- a circular destruction trace. But for example, tornadoes leave sausages or noodles of destructions (below).
#Bretskyan_hierarchy
🧪 ⚒️ #Geology #Paleobio

Modeling results display the dynamic relationship between SPICE andNeoproterozoic oscillations

Interesting empirical analysis and the oceanographical paleobiogeochemical modeling study which revealed the instability and non-steady state behavior of the Earth system at the onset of Cambrian SPICE excursion and associated extinction event.
www.science.org/doi/epdf/10....
🧪 ⚒️ #Geology #Paleobio

POSSIBLE RESEARCH TOPICS

If you are interested in macroevolution, macroecology, fossil record, stratigraphy and stuff, please consider applying for the 2026 Marie Skłodowska-Curie Actions Postdoctoral Fellowships (MSCA PF) grant this year in my lab.
🧪 ⚒️ #Geology #Paleobio #EvoBio
euraxess.ec.europa.eu/jobs/hosting...

Fibo-cacti 😀
🧪 #EvoBio #Math

Basic workflow for community projection and adaptive dynamics analyses using R package adapt3.

Cool:
"Package adapt 3 is available on CRAN and can be used to study the nature and stability of ecological interactions, the mechanics of natural selection and even speciation."
besjournals.onlinelibrary.wiley.com/doi/epdf/10....
🧪 ⚒️ #EvoBio #Ecology #Macroecology #Paleobio

Hierarchy of Fundamental Evolved Motives

The hierarchy of fundamental evolved motives. It essentially shows the sequence of the assembly of the conditional operators of complex social creatures.
www.sciencedirect.com/science/arti...
🧪 #EvoBio

Reminder that sloppy spaghetti code, like the kind produced by ai, would never be a good option for truly important tasks

Interesting. Modulation of microphysical environments by the plant biodiversity.
At least at smaller scales, environment&biodiversity relations are bidirectional.
🧪 ⚒️ #Ecology #Geology #Botany

. Atmospheric CO2 (pCO2) level through Phanerozoic

Comparison between modeled and proxy-derived ranges of atmospheric pCO during the Phanerozoic

"These results highlight the key role of outgassing and deep Earth processes in influencing pCO2 variation and climate dynamics with implications for understanding historical climate variations"
www.sciencedirect.com/science/arti...
🧪 ⚒️ #Geology #Paleobio #Climate

Flattened pigeon carcass

Archaeopteryx lithographica

Archaeopteryx lithographica - the modern reincarnation in Vilnius streets, and the original one from the Jurassic Solnhofen 😉
🧪 ⚒️ #Geology #Paleobio #EvoBio

Julien Van Der Hoek

Today we've had a pleassure to host on our department Julien Van Der Hoek (University of Manchester), who presented the talk:
"Abiotic and biotic effects on predator-prey evolution throughout the Cenozoic: untangling correlations in carnivores and artiodactyls"

Thiomargarita magnifica and scales

Wow, what a strange macro-microbe - Thiomargarita magnifica, cm scale bacteria which is far longer than most animals. Interesting case of things approaching boundaries of possible, given their body-plans.
www.science.org/doi/epdf/10....
🧪 #EvoBio

A giant filter-feeding large whale-sized and baleen whale life-styled bony fish of the Jurassic period
🧪 ⚒️ #Geology #Paleobio

Please consider submitting your abstract to the European Association of Vertebrate Palaeontologists conference, which will happen this summer in Vilnius! 👇
🧪 ⚒️ #Geology #Paleobio #EvoBio

Extinctions, radiations and the environmental reactions are forming the cause-and-effect networks, which we still need to understand even at superficial conceptual level.

Interesting on-site and online lecture on the P-Tr mass extinction environments:
"Pangea on Acid: Extreme Environments, Climate, and Life during Permo-Triassic Time - Public Lecture"
www.geolsoc.org.uk/events/pange...

Chemostratigraphic profiles of the 7- m Chattanooga Shale section exposed in Chestnut Mound, central Tennessee, United States.

Chemostratigraphy of the mass extinction interval helps the untangling of the global crisis:
"...redox- sensitive proxies, indicating that wildfire activity intensified in response to post- OAEs oxygen rise rather than triggering anoxia."
www.science.org/doi/pdf/10.1...
🧪 ⚒️ #Geology #Paleobio

Biblically Accurate Slabs

Happy International Geologist's Day! Now for real.
Below are the Easter-most igneous rocks out there. The orbicular granite slabs near the Department of the Earth Sciences in Uppsala University.
🧪 ⚒️ #Geology

Shape of different eggs drawn to the same size: A–G, nonavian theropod dinosaur eggs (A–B, Macroelongatoolithus; C, Elongatoolithus; D, Oviraptoridae; E, Citipati; F, Segnosaurus; G, Troodon); H, Sankofa, the new Montsec egg type; I–P, avian eggs (I, unnamed fossil egg from Bajo de la Carpa Formation, Neuque´n, Argentina, attributed to an Enantiornite bird by Schweitzer et al. 2002). J–P, modern birds: J, Aepyornis; K, condor; L, swan; M, murre; N, lesser scaup; O, red-tailed hawk; P, hen). Scale bar represents 1 cm.

Preliminary results of the analysis of the egg morphospace, based on the four shape parameters c0–c3 of the egg morphospace from Barta and Szekely (1997). The 16 eggs from Figure 7 are distributed in a 3D graphic according to their three principal components (PC1–PC3, explaining 95.4 per cent of the total variance; see Table 3). Note the sharp difference of the eggshape- component distribution between modern birds and nonavian theropod dinosaurs. The new Montsec egg type (Sankofa pyrenaica oogen. nov. oosp. nov.) fits between both shape groups, as well as the Enantiornitine bird egg from the late Cretaceosus Bajo-de-la- Carpa Fm, Argentina (Schweitzer et al. 2002).

Oldie but Goldie.
Interesting study which reveals the morphospace of dinosaur eggs, including shape contrasts between non-avian dinosaur eggs and the bird eggs.
onlinelibrary.wiley.com/doi/epdf/10....
🧪 ⚒️ #Geology #Paleobio #EvoBio

Putative trophic structure of the Chaohu Fauna (Spathian, Early Triassic), briefly compared with that of the latest Smithian fish faunas

Summary of coprolite morphotypes identified from the Chaohu Fauna, Majiashan, Chaohu, China.

When fossil shite speaks up:
"The coprolite record reveals a multi-tiered trophic structure in which marine reptiles had already occupied meso- and apex consumer roles by the Early Triassic."
www.sciencedirect.com/science/arti...
🧪 ⚒️ #Geology #Paleobio #EvoBio #Macroecology

Plate Tectonics - Inception

Happy Easter! Happy International Geologists Day!
Plate Tectonics - Inception
🧪 ⚒️ #Geology

Wikipedia page about the Laotian rock rat

One of the craziest discoveries of a new 'living fossil' and Lazarus taxon - Laotian rock rat en.wikipedia.org/wiki/Laotian... the last member of Diatomyidae. Survived in the isolated mountain pockets.
And here is fun video about it: youtube.com/shorts/sZI3Z...
🧪 ⚒️ #Geology #Paleobio #EvoBio

Post on the intersection of the geology, geopolitics and humor.

Let's be real. The geology will eventually solve the geopolitics
🧪 ⚒️ #Geology

Paleogeographic maps of the European and African coastlines along the western Tethys Ocean during the late Early Cretaceous

Biological mechanisms of geodispersal in dinosaurs:
"hadrosaurs and titanosaurs could..complete the journey, particularly under favorable conditions such as low sea levels, stepping-stone islands, and higher fat reserves"
onlinelibrary.wiley.com/doi/epdf/10....
🧪 ⚒️ #Geology #Paleobio #Macroecology

Print screen of the article title and the abstract "AI, Human Cognition and Knowledge Collapse"

Punctuated equilibrium of stalled cultural-evolutionary progress as a side effect of the emergence of accurate AI models. Reminds me ideas of Sergi Valverde @svalver.bsky.social . Could we call it the ultimate imitation regime? When you loose the intellectual wandering.
🧪
www.nber.org/papers/w34910