houssayecnrs.bsky.social
@houssayecnrs.bsky.social
120 followers 42 following 21 posts
Professsor/DR CNRS in Bone Functional Adaptation and Paleontology at the MNHN, Paris, France
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houssayecnrs.bsky.social
houssayecnrs.bsky.social @houssayecnrs.bsky.social · 6d
Super film et très sympa d'y voir plein de collègues et leur travail de terrain !
mecadev.bsky.social
mecadev.bsky.social @mecadev.bsky.social · 6d
Hier avant première du film documentaire "TAPULAO, une montagne à protéger" de C. Breton avec E. Guilbert #MECADEV comme conseiller scientifique. Très belle réalisation mettant en valeur le travail scientifique entre les équipes philippine et française. #UshuaïaTV @francetv.bsky.social @mnhn.fr #CNC
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johnrhutchinson.bsky.social
Professor John R. Hutchinson @johnrhutchinson.bsky.social · 7d
#CanHazPdf link.springer.com/chapter/10.1... jrhutch94705 [at ] gmail.com
please
Dynamic Modeling and Simulation of a Crocodile-Like Robot
The ability of crocodiles to adapt to complex aquatic and terrestrial environments, such as land and nearshore tidal flats, provides an excellent biological prototype for the design of amphibious robots. In this paper, a 16-degree-of-freedom biomechanical crocodile...
link.springer.com
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arctomet.bsky.social
Thomas R. Holtz, Jr. @arctomet.bsky.social · 7d
Benson, R.B.J., Walsh, S.A., Griffiths, E.F. et al. Mosaic anatomy in an early fossil squamate. Nature (2025). doi.org/10.1038/s415...
Mosaic anatomy in an early fossil squamate - Nature
Breugnathair elgolensis gen. et sp. nov., an early squamate identified from a newly discovered Middle Jurassic skeleton on the Isle of Skye, provides new evidence on the origins of snakes.
doi.org
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jordangonet.bsky.social
jordangonet.bsky.social @jordangonet.bsky.social · 14d
📣 Pour mon premier post, un peu de pub.
Très heureux d’avoir pu accompagner la conception de cette exposition qui célèbre les 50 ans de l’ACAP en mettant à l’honneur les fossiles découverts à Cruzy et ses environs. Venez nombreux découvrir l’extraordinaire patrimoine paléontologique biterrois ! 🦕
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stephanspiekman.bsky.social
Stephan Spiekman @stephanspiekman.bsky.social · 9d
PhD position available at the Museum für Naturkunde in Berlin on avialan ontogeny (birds and their closest non-avian dinosaur relatives)!

jobs.museumfuernaturkunde.berlin/jobposting/e...
42/2025 Research Associate with the goal of a doctorate (f/m/d)
jobs.museumfuernaturkunde.berlin
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johnrhutchinson.bsky.social
Professor John R. Hutchinson @johnrhutchinson.bsky.social · 9d
To a certain amount, you can estimate the angle of the ankle joint (mean angle during stance phase) of some land mammals by measuring the angle of their tibial long axis vs. calcaneal tuber long axis, and that could be handy:
peerj.com/articles/200...
Estimating ankle joint angle from skeletal geometry: a mechanical model of the calcaneal lever in terrestrial mammals
Background The ankle joint angle, typically measured between the tibia and metatarsus, shows only a small range of movement during the stance phase and remains relatively constant within species, but ...
peerj.com
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morganproust.bsky.social
Morgan PROUST @morganproust.bsky.social · 12d
Hello, microanatomy &/or salamander enthusiasts!

If you’re a first-year master’s student, I might have an exciting internship for you on the microanatomy of two salamanders sp., with already great results on the humerus.

What: Zeugopod microanatomy
Where: SMNS

Contact: [email protected]
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highamlab.bsky.social
Tim Higham @highamlab.bsky.social · 12d
As part of the upcoming 2nd edition of Fish Biomechanics (co-edited with @georgelauder.bsky.social ), our chapter on the ecology and biomechanics of locomotion and feeding in fishes is now available www.sciencedirect.com/science/arti... #fish #biomechanics #ecology
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pdmannion.bsky.social
Phil Mannion @pdmannion.bsky.social · 13d
New paper led by @es-ucl.bsky.social PhD student Samantha Beeston (with @profpaulbarrett.bsky.social + others) on the evolution of postcranial pneumaticity in early sauropodomorph dinosaurs + its likely independent acquisition from that of theropods & pterosauromorphs: doi.org/10.1111/joa....
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johnrhutchinson.bsky.social
Professor John R. Hutchinson @johnrhutchinson.bsky.social · 13d
Scaling and potential functions of avian wing muscles that are not the pectoralis or supracoracoideus--- great dataset:
onlinelibrary.wiley.com/doi/full/10....
Holding a wing horizontal: Roles for muscles of the pectoral girdle other than the main two flight muscles
This report explores which muscles of the pectoral girdle are employed to allow birds to hold their wings horizontally with a level aerofoil surface during a glide.
onlinelibrary.wiley.com
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acapomorphic.bsky.social
Alessio Capobianco @acapomorphic.bsky.social · 13d
I am extremely happy to see that our review on fossil tip-dating is out in early view in Systematic Biology! A huge thanks to all the authors of this massive project (@heckeberg.bsky.social, @basantakhakurel.bsky.social, Gustavo Darlim, and @hoehna.bsky.social)! academic.oup.com/sysbio/advan...
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feikosaur.bsky.social
feikosaur.bsky.social @feikosaur.bsky.social · 13d
A new ichthyosaur species is discovered! Welcome Eurhinosaurus mistelgauensis! fr.pensoft.net/article/1542...
Huge congratulations to @spichergael.bsky.social for leading this project.
A new Eurhinosaurus (Ichthyosauria) species from the Lower Jurassic (Toarcian) of Mistelgau (Bavaria, Southern Germany)
Eurhinosaurus is a European Lower Jurassic longirostrine ichthyosaur, characterized by its remarkable overbite. Despite the long history of the genus, the taxonomy of Eurhinosaurus is still under deba...
fr.pensoft.net
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richardjbutler.bsky.social
Richard Butler @richardjbutler.bsky.social · 21d
This is one of those fossil specimens that when I saw it for the first time at SVP it literally made me gasp. A beautiful and very important specimen.
jack-tamisiea.bsky.social
Jack Tamisiea @jack-tamisiea.bsky.social · 21d
Due to their bizarre dome-like skulls, pachycephalosaurs are among the most famous groups of #dinosaurs. Yet their fossil record is puzzling.

A remarkable new fossil from Mongolia is shedding light on the group's beginnings.

Latest for @sciam.bsky.social: www.scientificamerican.com/article/olde...
Meet the Oldest Dome-Headed Dinosaur Ever Found
A newly discovered dinosaur species has been identified from a fossil unearthed in Mongolia that represents the most complete pachycephalosaur specimen yet found
www.scientificamerican.com
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houssayecnrs.bsky.social
houssayecnrs.bsky.social @houssayecnrs.bsky.social · 21d
Quelle est la démarche des sections face aux questions relatives à la parité ?
Un document de synthèse rédigé par les référents parité des sections CoNRS @cnrs.fr de la mandature 2021-2025.
www.cnrs.fr/comitenation...
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val-fisch.bsky.social
Prof. Valentin Fischer @val-fisch.bsky.social · 22d
Are you tired of people constantly overestimating body size of marine reptiles? No longer!

We provide equations to estimate body size in ichthyosaurians, mosasaurids, and thalattosuchians.

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jenlucpiquant.bsky.social
Jennifer Ouellette @jenlucpiquant.bsky.social · 24d
The death of dinosaurs dramatically re-engineered Earth's landscapes www.newscientist.com/article/2496...
The death of dinosaurs dramatically re-engineered Earth's landscapes
Changes in rock formations from before and after the mass extinction event 66 million years ago may reflect how dinosaurs acted as ecosystem engineers, shaping vegetation and even the meandering of ri...
www.newscientist.com
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leneliebedelsett.bsky.social
Lene Liebe Delsett @leneliebedelsett.bsky.social · Sep 9
Next year in Cape Town! At @ipc7.bsky.social my colleague Judith Pardo-Pérez and I organize a dedicated ichthyosaur symposium. Based on responses so far, it will feature many interesting topics and speakers. Get in touch if you want to contribute!
ipc7.bsky.social
IPC7 @ipc7.bsky.social · Sep 9
IPC7 will held 29 themed symposia + 1 open symposium.

Today we feature:

✨Ichthyosaur evolution and biology✨

📩 To participate in this symposium, contact the conveners:

Lene Liebe Delsett — [email protected] @leneliebedelsett.bsky.social
Judith Pardo-Pérez — [email protected]
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narimanechatar.bsky.social
Narimane Chatar @narimanechatar.bsky.social · Sep 8
Fully funded PhD position available at
@univmalaga.bsky.social 👩‍🎓👨‍🎓 focusing on the evolution of the vertebral column in crocodylomorphs 🐊under the supervision of @bortxaf.bsky.social & @albertomartinserra.bsky.social
Application deadline: Sep 30 🚨
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johnrhutchinson.bsky.social
Professor John R. Hutchinson @johnrhutchinson.bsky.social · Sep 8
Kinematic and *multi-force-plate* analysis of walking in giant pandas!
Quite a technical achievement in biomechanics, and certainly cute as all hell.
Scientifically, no shocking findings but it's a useful study with lots of data. 18 pandas (6 = juvenile), 120 trials
link.springer.com/article/10.1...
figure with cartoonish picture of walking panda in forceplate array, and devices used to measure: Panda Motion Mechanics Test System. The walking passage is composed of an array of 2 × 10 glass panels, with the panda entering from the left entrance of the bracket. The caretaker guides it through the passage to complete the motion. A camera is positioned at the central side near the bracket, enabling recording of the entire motion process. Both the force sensor array and high-speed camera are connected to computer process equipment, triggered simultaneously using synchronized switches.
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cnrs.fr
CNRS @cnrs.fr · Sep 8
Pour réhabiliter les contributions des femmes à l’histoire des sciences, le CNRS participe à une commission visant l’inscription de 72 femmes scientifiques sur la Tour Eiffel 🗼. Explications par la coprésidente du comité parité-égalité du CNRS. 👇 #FemmesEnScience
Bientôt des femmes de sciences sur la Tour Eiffel
Pour réhabiliter les contributions des femmes à l’histoire des sciences, le CNRS participe à une commission visant l’inscription de 72 femmes scientifiques su
www.cnrs.fr
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leneliebedelsett.bsky.social
Lene Liebe Delsett @leneliebedelsett.bsky.social · Sep 5
We studied the microanatomy and histology of vertebral centra from Grippia and Cymbospondylus from the Early Triassic of Spitsbergen. First look during covid times, then we realized we had series with all ontogenetic stages, the smallest one a 5 mm fetal vertebral centrum.
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houssayecnrs.bsky.social
houssayecnrs.bsky.social @houssayecnrs.bsky.social · Sep 5
"Growth series", with foetus, of two very distinct ichthyosaurs from the Triassic! Very glad to have participated to this cool study! Thanks again Lene!
leneliebedelsett.bsky.social
Lene Liebe Delsett @leneliebedelsett.bsky.social · Sep 5
Ichthyosaurs were fully pelagic five million years after the End Permian Mass Extinction - and we have fetal vertebrae from two Early Triassic taxa. That is the main findings in our @natureportfolio.nature.com Scientific Reports paper published just now🥳 www.nature.com/articles/s41...
Vertebral microstructure marks the emergence of pelagic ichthyosaurs soon after the End Permian Mass Extinction - Scientific Reports
Scientific Reports - Vertebral microstructure marks the emergence of pelagic ichthyosaurs soon after the End Permian Mass Extinction
www.nature.com
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pdmannion.bsky.social
Phil Mannion @pdmannion.bsky.social · Sep 4
New paper in which we evaluate how we can use information on past extinction events to better contextualise the ongoing anthropogenic extinction, led by @anthropocenebio.bsky.social (with @bethanyjallen.bsky.social, @inesismartins.bsky.social, & others): onlinelibrary.wiley.com/doi/10.1111/...
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e-colplus.bsky.social
e-COL+ @e-colplus.bsky.social · Sep 3
Our website www.ecolplus.fr has a brand-new look ✨
Discover:

- the #digitization of French natural history #collections
- the equipment available
- our partner institutions
- a dedicated page for the latest news

👉 And it’s now available in English too!
e-COL+ Numérisation 3D des collections naturalistes.
Projet e-COL+ Numérisation 3D des collections naturalistes a bénéficié d'une aide de l’État PIA3-ANR-21-ESRE-0053
www.ecolplus.fr
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jmhuie.bsky.social
Jonathan Huie, PhD @jmhuie.bsky.social · Aug 28
Excited to share the first paper from my PhD!

We looked at what traits help Aneides salamanders excel at climbing using museum specimens, CT scans, SEM, and more! No claws or toe pads, so how do they do it? In short, with long limbs, big feet and grippy toes! 🦎🧪

DM for PDF

doi.org/10.1098/rspb...
Phylogeny of Aneides and Plethodon with animal photos Phylomorphospace showing body shape variation Morphospace of toe bones and box lots showing estimated gripping force Representative SEM images of salamander feet
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