Our new paper on an oddity from the Bolivian track record: a weird pit on a palaeosurface...digging sauropods? Read our paper to find out! fr.pensoft.net/article/1987... With the superb art work by @joschuaknuppe.bsky.social 🫶
Antoine Logghe
@temno-tracker.bsky.social
PhD student - Temnospondyls will rule them all - Footprint tracker 🐾 - MNHN Paris 🇫🇷
Highly aquatic marine stem archosaur with soft tissue preservation | Science Advances www.science.org/doi/10.1126/...
Highly aquatic marine stem archosaur with soft tissue preservation
A 240-million-year-old reptile exhibits elongate forelimbs, a morphology consistent with adaptations to an aquatic lifestyle.
science.org
Bulanov, V.V., Shaymardanov, F.F. & Papernyi, M.L. A New Dromasaur (Therapsida, Anomodontia) from the Upper Permian of the South Cis-Ural Region. Paleontol. J. 60, 178–194 (2026). doi.org/10.1134/S003...
A New Dromasaur (Therapsida, Anomodontia) from the Upper Permian of the South Cis-Ural Region - Paleontological Journal
Abstract A new member of the suborder Dromasauria (Anomodontia), Parasilvia alexandrae gen. et sp. nov., is described based on the disarticulated cranial remains found in the Podlesnyi locality of the South Cis-Ural area of Russia (Orenburg Region). P. alexandrae gen. et sp. nov. is similar to Suminia getmanovi Ivachnenko, 1994 and Parasuminia ivakhnenkoi Kurkin, 2017, being characterized by a number of primitive features which prevents it consideration as a phylogenetic derivative of these species, and suggests that the new taxon is some closer to the more basal venyukovioid anomodonts of European Russia. The specimens from Podlesnyi confirm the presence of dromasaurs on the East European Platform up to the latest Severodvinian (base of Chroniosaurus levis Tetrapod Zone) and indicate the presence of species with a significantly different level of specialization within the group at the final stage of its evolutionary history. The genera Suminia, Parasuminia and Parasilvia gen. nov. cannot be included in the family Galeopidae because of their evident differences from the genus Galeops Broom, 1912, and are thus re-assigned to the family Galechiridae Broom, 1912 based on general similarities in the dental system with its type genus, Galechirus Broom, 1907.
doi.org
🌲 The Devonian was a transformative chapter in Earth's history. Forests rose. Resin evolved. Terrestrial ecosystems flourished. Plants drove many of the innovations that reshaped life on land：https://www.science.org/doi/10.1126/sciadv.aeh1266
The earliest amber from the Middle Devonian of China
Devonian amber pushes plant resin origin back 65 million years.
science.org
New paper out in JSP! Wang et al. introduce trajectory smoothness as an ichnotaxonomic criterion. Trajectory smoothness helps us understand locomotory mode, body profile, and behavioural evolution— enhancing ichnotaxonomy and the information it provides. Full article: buff.ly/cGwwrSG #PalaeoSky
#FossilFriday #SurvivingEarth The boomerang-head lepospondyl Diplocaulus @denvermuseumns.bsky.social
Type specimen of Diplocaulus salamandroides is from the earliest Kasimovian of Illinois, just ever so slightly younger than Mazon Creek and sharing many taxa with the Mazon Creek assemblage. www.cambridge.org/core/journal...
The lost Permo-Carboniferous vertebrate deposit of Horseshoe Bend near Danville, Vermilion County, Illinois | Journal of Paleontology | Cambridge Core
The lost Permo-Carboniferous vertebrate deposit of Horseshoe Bend near Danville, Vermilion County, Illinois - Volume 98 Issue 5
cambridge.org
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
🐘 check out our newest paper from Liang Bua! www.science.org/doi/10.1126/... Did H. floresiensis hunt Stegodon? 🔪 Did they also had control use of fire? 🔥 We tested these early claims of complex behavior using taphonomy, experimental archaeology, and zooarchaeology of the Stegodon assemblage.
doi.org
While I'm checking in on BlueSky, here's the stem-mammal Sphenacodon ferox, which lived long before there were any dinosaurs.
A. Logghe et al. (2026) An exceptional Dimetropus pes imprint with scalation pattern from the lower Permian of Lodève and its broader implications for early synapsid palaeobiogeography and skin evolution Acta Palaeontologica Polonica 71(2): 363-382 www.app.pan.pl/article/item...
An exceptional <em> Dimetropus</em> pes imprint with scalation pattern from the lower Permian of Lodève and its broader implications for early synapsid palaeobiogeography and skin evolution - Acta Pa...
app.pan.pl
Inside the Brain of a 319-Million-Year-Old Fossil Fish
Inside the Brain of a 319-Million-Year-Old Fossil Fish
Inside the Brain of a 319-Million-Year-Old Fossil Fish: It paves the way for understanding how ray-finned fishes came to dominate Earth’s oceans
nautil.us
Very, very happy that our paper is finally out! We look at how tight a fit primates experience at birth, and found really cool results. It has been a long journey from collecting the first data seven years ago! A brief thread (1/8) www.nature.com/articles/s41...
Comparative primate analysis shows that humans are not unique in having a tight cephalopelvic fit at birth - Nature Ecology & Evolution
Analysing cephalopelvic proportions among 29 extant primate species, the authors show that a tight cephalopelvic fit is not unique to humans, with comparable or tighter fits occurring in several non-h...
nature.com
New in Bulletin de la @socentomolfr.bsky.social 131(2) "Two new roachoid specimens from the Carboniferous of the Reyran massif, Var, France (Holopandictyoptera...)" #paleodiversity #insecta #New_record #Esterel_France Nel,A., Garrouste,R., & Loll,J.C. @isyeb.mnhn.fr doi.org/10.32475/bsef_2399
Another beautiful 3D coelacanth, Aemilia, this one from the Carboniferous of USA, published today by Jorge and colleagues. Great work! sciencepress.mnhn.fr/en/periodiqu...
A new Carboniferous coelacanth illuminates the evolution of the actinistian hyobranchial skeleton
The hyobranchial skeleton plays a fundamental role in breathing and feeding in gnathostomes (jawed vertebrates). Nevertheless, despite a relatively rich fossil record spanning more than 400 million ye...
sciencepress.mnhn.fr
🧠 At long last... our paper "Ethmosphenoid #endocasts elucidate evolutionary #brain divergences and interrelationships of stem tetrapods (Sarcopterygii, #Tetrapodomorpha)" has been published, today in Papers in Palaentology @thepalass.bsky.social - onlinelibrary.wiley.com/doi/10.1002/...
Ethmosphenoid endocasts elucidate evolutionary brain divergences and interrelationships of stem tetrapods (Sarcopterygii, Tetrapodomorpha)
Nearly half of all living vertebrate diversity can be traced back to a single lineage of lobe-finned fishes (piscine sarcopterygians) that radiated during the Palaeozoic Era. In recent years, the phy...
onlinelibrary.wiley.com
New in @science.org ...since our first discoveries of early tetrapods, they have been thought of as "amphibians" characterized by aquatic larvae. But is this true? For the first time, we report exceptional fossils of stem tetrapod babies that upend this paradigm. 1/n www.science.org/doi/10.1126/...
Direct development of stem tetrapods across the fin-to-limb transition
Modern amphibians are characterized by an aquatic larval stage that ends abruptly with a period of widespread tissue remodeling (metamorphosis) upon transition to terrestrial adulthood. A transient la...
science.org
The newts here are Palmates, a small, western European species that prefers running water. Strangely, they scale the vertical partition walls between the tiered ponds, presumably to find arthropod prey... #amphibians #salamanders
Severe mass extinctions in Pelycosaurs: "at 298.9 Ma, at the Carboniferous/Permian transition...0.527 survival probability... much more severe mass extinction event in the mid-Kungurian, with an estimated survival rate of only 0.113" doi.org/10.1017/pab.... 🧪⚒️ #Paleobio #Geology #EvoBio
Happy #FossilFriday! Check out this holotype (first of its kind) of Borealosuchipus, an extinct #crocodile track from #NorthDakota, about 60 million years ago, in the vault at the Science Museum of Minnesota. It shows 2 hind and 2 fore feet prints plus a belly slide! Happy #WorldCrocDay on June 17!
Happy #FossilFriday! Today we’ve got Dinodontosaurus, a South American dicynodont! This display at the UFRGS in Porto Alegre, Brazil, shows an adult skeletal mount surrounded by numerous juveniles - whether they’re a family or a graveyard resulting from the Great Dying is for you to decide! 🦊⚒️🧪
