@houssayecnrs.bsky.social
Professsor/DR CNRS in Bone Functional Adaptation and Paleontology at the MNHN, Paris, France
Reposted
Honoured to have contributed to a new paper in @currentbiology.bsky.social led by Mario Bronzati and lots of excellent and brainy (yes, pun intended) colleagues, showing that pterosaurs and birds evolved flight-capable brains but in different ways. www.cell.com/current-biol...
November 27, 2025 at 9:59 AM
Honoured to have contributed to a new paper in @currentbiology.bsky.social led by Mario Bronzati and lots of excellent and brainy (yes, pun intended) colleagues, showing that pterosaurs and birds evolved flight-capable brains but in different ways. www.cell.com/current-biol...
Reposted
Stiff and different - Lizard osteoderm papers from a collaboration with @henrikbirkedal.bsky.social's group led by Adrian. We show a capping tissue from Heloderma that is enamel-like in mechanical properties but highly disordered in crystal pattern
doi.org/10.1016/j.ac...
doi.org/10.1002/adfm...
doi.org/10.1016/j.ac...
doi.org/10.1002/adfm...
November 26, 2025 at 8:11 PM
Stiff and different - Lizard osteoderm papers from a collaboration with @henrikbirkedal.bsky.social's group led by Adrian. We show a capping tissue from Heloderma that is enamel-like in mechanical properties but highly disordered in crystal pattern
doi.org/10.1016/j.ac...
doi.org/10.1002/adfm...
doi.org/10.1016/j.ac...
doi.org/10.1002/adfm...
Reposted
Pour tout savoir sur les stratégies du vivant pour manger et boire, lisez le livre de Vincent Bels professeur émérite @isyeb.mnhn.fr @mnhn.fr
"MANGER ET BOIRE" Des innovation évolutives extraordinaires.
Paru aux éditions @editionsodilejacob.bsky.social
➡️ isyeb.mnhn.fr/fr/actualite...
"MANGER ET BOIRE" Des innovation évolutives extraordinaires.
Paru aux éditions @editionsodilejacob.bsky.social
➡️ isyeb.mnhn.fr/fr/actualite...
November 26, 2025 at 10:57 AM
Pour tout savoir sur les stratégies du vivant pour manger et boire, lisez le livre de Vincent Bels professeur émérite @isyeb.mnhn.fr @mnhn.fr
"MANGER ET BOIRE" Des innovation évolutives extraordinaires.
Paru aux éditions @editionsodilejacob.bsky.social
➡️ isyeb.mnhn.fr/fr/actualite...
"MANGER ET BOIRE" Des innovation évolutives extraordinaires.
Paru aux éditions @editionsodilejacob.bsky.social
➡️ isyeb.mnhn.fr/fr/actualite...
Reposted
Have you already sent us your abstracts? Deadline for talks and poster submissions is December 1: Only a few days left!⏳
Deadline to enter the paleoart gallery is December 20 🎨
More info: awap-science.org/en/vcwap-cur...
Deadline to enter the paleoart gallery is December 20 🎨
More info: awap-science.org/en/vcwap-cur...
November 24, 2025 at 7:14 AM
Have you already sent us your abstracts? Deadline for talks and poster submissions is December 1: Only a few days left!⏳
Deadline to enter the paleoart gallery is December 20 🎨
More info: awap-science.org/en/vcwap-cur...
Deadline to enter the paleoart gallery is December 20 🎨
More info: awap-science.org/en/vcwap-cur...
Reposted
New paper on the notosuchian Eremosuchus by @piginatutu.bsky.social, co-authored by myself and @pdmannion.bsky.social among others out now!! We even find some cool evidence of replacement teeth in the dentary! www.tandfonline.com/doi/full/10....
A re-evaluation of the notosuchian crocodyliform Eremosuchus elkoholicus from the lower Eocene of Algeria and the evolutionary and biogeographic history of sebecids
Notosuchian systematics have been highly debated in recent decades, particularly the placement of sebecids and closely related species. As the only notosuchian lineage to have survived the Cretaceo...
www.tandfonline.com
November 24, 2025 at 9:13 AM
New paper on the notosuchian Eremosuchus by @piginatutu.bsky.social, co-authored by myself and @pdmannion.bsky.social among others out now!! We even find some cool evidence of replacement teeth in the dentary! www.tandfonline.com/doi/full/10....
Reposted
A new #PhD opportunity supervised by @drmambobob.bsky.social and me at the @uniofreading.bsky.social on dragonfly and damselfly evolution!
It is competition funded through the CROCUS partnership, and involves a mix of palaeontology and comparative biology.
www.findaphd.com/phds/project...
It is competition funded through the CROCUS partnership, and involves a mix of palaeontology and comparative biology.
www.findaphd.com/phds/project...
November 22, 2025 at 1:26 PM
A new #PhD opportunity supervised by @drmambobob.bsky.social and me at the @uniofreading.bsky.social on dragonfly and damselfly evolution!
It is competition funded through the CROCUS partnership, and involves a mix of palaeontology and comparative biology.
www.findaphd.com/phds/project...
It is competition funded through the CROCUS partnership, and involves a mix of palaeontology and comparative biology.
www.findaphd.com/phds/project...
Reposted
A new analysis of Dunkleosteus terrelli reveals its massive jaws were far more cartilage-rich than once thought, reshaping ideas about muscle layout, bite mechanics & feeding style. Time to rethink this Devonian apex predator.
Engelman et al.:
anatomypubs.onlinelibrary.wiley.com/doi/10.1002/...
Engelman et al.:
anatomypubs.onlinelibrary.wiley.com/doi/10.1002/...
November 21, 2025 at 2:45 PM
A new analysis of Dunkleosteus terrelli reveals its massive jaws were far more cartilage-rich than once thought, reshaping ideas about muscle layout, bite mechanics & feeding style. Time to rethink this Devonian apex predator.
Engelman et al.:
anatomypubs.onlinelibrary.wiley.com/doi/10.1002/...
Engelman et al.:
anatomypubs.onlinelibrary.wiley.com/doi/10.1002/...
Reposted
Hey everyone! I’m excited to share that one of my thesis projects was just published in @currentbiology.bsky.social and featured on phys.org! In this paper, we use an old statistical approach developed by the US Navy in WW2 to predict the aquatic habits of various dinosaurs and marine reptiles 🦖🐊
November 20, 2025 at 8:51 PM
Hey everyone! I’m excited to share that one of my thesis projects was just published in @currentbiology.bsky.social and featured on phys.org! In this paper, we use an old statistical approach developed by the US Navy in WW2 to predict the aquatic habits of various dinosaurs and marine reptiles 🦖🐊
Reposted
#DAWNDINOS paper! We built a 3D musculoskeletal model of ~1 kg Triassic pseudosuchian archosaur Gracilisuchus. Forelimbs were a challenge. Nice articulations of ribs, vertebrae & osteoderms made a good torso & neck. Probably quadrupedal, plantigrade & not fully erect limbs. doi.org/10.1111/joa....
Hindlimb functional morphology and locomotor biomechanics of the small Late Triassic pseudosuchian reptile Gracilisuchus stipanicicorum (Archosauria: Gracilisuchidae)
A three-dimensional biomechanical model of the musculoskeletal system is used to analyse the potential locomotor functions of the small (~1 kg) Late Triassic archosaurian reptile Gracilisuchus stipan...
doi.org
November 20, 2025 at 9:33 AM
#DAWNDINOS paper! We built a 3D musculoskeletal model of ~1 kg Triassic pseudosuchian archosaur Gracilisuchus. Forelimbs were a challenge. Nice articulations of ribs, vertebrae & osteoderms made a good torso & neck. Probably quadrupedal, plantigrade & not fully erect limbs. doi.org/10.1111/joa....
Reposted
My research group has an open position for a postdoc! Interested in investigating the postural transition towards mammalian gait using movement simulations? We might have the right position for you! More details and application info here: www.asm.tf.fau.de/en/2025/11/1...
Postdoctoral researcher for DFG-funded project “FossilGaitSim”
The Biomechanical Motion Analysis and Creation (BioMAC) group at the Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) invites applications for a postdoctoral position with the goal to…
www.asm.tf.fau.de
November 19, 2025 at 1:41 PM
My research group has an open position for a postdoc! Interested in investigating the postural transition towards mammalian gait using movement simulations? We might have the right position for you! More details and application info here: www.asm.tf.fau.de/en/2025/11/1...
Reposted
incredible! a gorgeously preserved skull from tupandactylus imperator has been described, offering new insights into its dietary ecology and soft tissues 😻
www.scielo.br/j/aabc/a/6Hv...
(art by maurilio oliveira)
www.scielo.br/j/aabc/a/6Hv...
(art by maurilio oliveira)
November 17, 2025 at 5:01 PM
incredible! a gorgeously preserved skull from tupandactylus imperator has been described, offering new insights into its dietary ecology and soft tissues 😻
www.scielo.br/j/aabc/a/6Hv...
(art by maurilio oliveira)
www.scielo.br/j/aabc/a/6Hv...
(art by maurilio oliveira)
Reposted
Philippe Taquet, chasseur de dinosaures et ancien directeur du Muséum national d’histoire naturelle, est mort
Philippe Taquet, chasseur de dinosaures et ancien directeur du Muséum national d’histoire naturelle, est mort
Destiné à reprendre l’industrie textile familiale, cet esprit libre a préféré la vie de chercheur d’os, découvrant plusieurs espèces d’animaux disparus, tout en menant une carrière institutionnelle de premier plan. Il s’est éteint le 16 novembre, à 85 ans.
www.lemonde.fr
November 17, 2025 at 10:55 AM
Philippe Taquet, chasseur de dinosaures et ancien directeur du Muséum national d’histoire naturelle, est mort
Reposted
Look what my amazing colleagues did! Early Triassic bonebed at Svalbard shows recovery after mass extinction🥳 @aubronectes.bsky.social
An early Triassic bone bed excavated at 78°N changes the story about how marine life recovered after the most cataclysmic extinction in Earth history ~252 million years ago.
Learn more in this week's issue of Science: https://scim.ag/48bLsGI
Learn more in this week's issue of Science: https://scim.ag/48bLsGI
November 14, 2025 at 9:15 AM
Look what my amazing colleagues did! Early Triassic bonebed at Svalbard shows recovery after mass extinction🥳 @aubronectes.bsky.social
Reposted
Large-eyed animals like owls 🦉 have a trade-off between large eyes & short optic nerves, which lowers eye mobility (to compensate they evolved swivelly necks)
But chameleons 🦎 have long, coiled optic nerves with extra slack for eye mobility, allowing them to use their famous large swivelly eyes 👀🧪🌏
But chameleons 🦎 have long, coiled optic nerves with extra slack for eye mobility, allowing them to use their famous large swivelly eyes 👀🧪🌏
The twisted secret behind a chameleon’s oddball eyes | Science | AAAS www.science.org/content/arti... 🧪
The twisted secret behind a chameleon’s oddball eyes
Coiled nerves allow the reptiles to move their peepers in multiple directions at once without moving their heads
www.science.org
November 13, 2025 at 7:11 AM
Large-eyed animals like owls 🦉 have a trade-off between large eyes & short optic nerves, which lowers eye mobility (to compensate they evolved swivelly necks)
But chameleons 🦎 have long, coiled optic nerves with extra slack for eye mobility, allowing them to use their famous large swivelly eyes 👀🧪🌏
But chameleons 🦎 have long, coiled optic nerves with extra slack for eye mobility, allowing them to use their famous large swivelly eyes 👀🧪🌏
Reposted
Our paper on tinamou evolution is finally out in @systbiol.bsky.social. academic.oup.com/sysbio/advan...
November 9, 2025 at 4:26 AM
Our paper on tinamou evolution is finally out in @systbiol.bsky.social. academic.oup.com/sysbio/advan...
Reposted
November 9, 2025 at 9:56 PM
Reposted
📢 New collab led by @valentinbuffa.bsky.social in @journalofanatomy.bsky.social on the origin and musculoskeletal functions of the wings of Late Permian gliding reptiles!
onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com/doi/10.1111/...
November 6, 2025 at 3:09 PM
📢 New collab led by @valentinbuffa.bsky.social in @journalofanatomy.bsky.social on the origin and musculoskeletal functions of the wings of Late Permian gliding reptiles!
onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com/doi/10.1111/...
Reposted
📣 Funded PhD combining anatomy, surgery and engineering!
💀 This project aims to characterise the biomechanical behaviour of jaw implants following mandibulectomy.
📍@livuni-ilcams.bsky.social Liverpool, UK
🥼@ukshaq.bsky.social @clairebrockett.bsky.social and me!
💀 This project aims to characterise the biomechanical behaviour of jaw implants following mandibulectomy.
📍@livuni-ilcams.bsky.social Liverpool, UK
🥼@ukshaq.bsky.social @clairebrockett.bsky.social and me!
October 30, 2025 at 4:56 PM
📣 Funded PhD combining anatomy, surgery and engineering!
💀 This project aims to characterise the biomechanical behaviour of jaw implants following mandibulectomy.
📍@livuni-ilcams.bsky.social Liverpool, UK
🥼@ukshaq.bsky.social @clairebrockett.bsky.social and me!
💀 This project aims to characterise the biomechanical behaviour of jaw implants following mandibulectomy.
📍@livuni-ilcams.bsky.social Liverpool, UK
🥼@ukshaq.bsky.social @clairebrockett.bsky.social and me!
Reposted
A 164.7 cm #rhino horn from #Yakutia sheds light on woolly rhinoceros morphology, longevity, and sexual dimorphism zslpublications.onlinelibrary.wiley.com/doi/10.1111/... #permafrost #palaeoecology @davehone.bsky.social @amcell.bsky.social @elissazcameron.bsky.social @conservresearch.bsky.social
October 30, 2025 at 12:05 PM
A 164.7 cm #rhino horn from #Yakutia sheds light on woolly rhinoceros morphology, longevity, and sexual dimorphism zslpublications.onlinelibrary.wiley.com/doi/10.1111/... #permafrost #palaeoecology @davehone.bsky.social @amcell.bsky.social @elissazcameron.bsky.social @conservresearch.bsky.social
Reposted
The eleven organisations, including the CNRS, that won the European Equality Prize signed a declaration of principle in support of gender equality in research.
The CNRS defends gender equality in world science
On October 27th 2025, the eleven organisations, including the CNRS, that won the European Equality Prize signed a declaration of
www.cnrs.fr
October 30, 2025 at 1:11 PM
The eleven organisations, including the CNRS, that won the European Equality Prize signed a declaration of principle in support of gender equality in research.
Reposted
This involved empirical data collection on an ontogenetic spectrum of gators in Florida (several papers by Iijima & Blob recently) & using these in inverse dynamic simulations to estimate muscle forces & activations across body sizes. Simulation of right hindlimb shown; red colours = active muscles
October 22, 2025 at 6:43 PM
This involved empirical data collection on an ontogenetic spectrum of gators in Florida (several papers by Iijima & Blob recently) & using these in inverse dynamic simulations to estimate muscle forces & activations across body sizes. Simulation of right hindlimb shown; red colours = active muscles
Reposted
New paper on crocodylian locomotor evolution led by Masaya Iijima, w/Richard Blob & me!
More erect hindlimb postures help extant gators support their weight (esp. at ankle), & how these mechanics constrained giant Deinosuchus to a slow walk at best!
The paper-- www.science.org/doi/10.1126/...
More erect hindlimb postures help extant gators support their weight (esp. at ankle), & how these mechanics constrained giant Deinosuchus to a slow walk at best!
The paper-- www.science.org/doi/10.1126/...
Biomechanical simulations of hindlimb function in Alligator provide insights into postural shifts and body size evolution
Locomotor simulations in alligators reveal that transitions to erect limb postures facilitate the evolution of larger body sizes.
www.science.org
October 22, 2025 at 6:40 PM
New paper on crocodylian locomotor evolution led by Masaya Iijima, w/Richard Blob & me!
More erect hindlimb postures help extant gators support their weight (esp. at ankle), & how these mechanics constrained giant Deinosuchus to a slow walk at best!
The paper-- www.science.org/doi/10.1126/...
More erect hindlimb postures help extant gators support their weight (esp. at ankle), & how these mechanics constrained giant Deinosuchus to a slow walk at best!
The paper-- www.science.org/doi/10.1126/...
Reposted
J'étais ce we à Cruzy pour l'inauguration de l'expo paléo de l'ACAP sur laquelle j'ai travaillé en tant que commissaire scientifique. Bravo aux bénévoles pour leur engagement et pour le travail accompli ! 👏 Si vous êtes dans les parages, n'hésitez pas à venir leur rendre une petite visite ! 😉🦕
October 21, 2025 at 10:41 PM
J'étais ce we à Cruzy pour l'inauguration de l'expo paléo de l'ACAP sur laquelle j'ai travaillé en tant que commissaire scientifique. Bravo aux bénévoles pour leur engagement et pour le travail accompli ! 👏 Si vous êtes dans les parages, n'hésitez pas à venir leur rendre une petite visite ! 😉🦕
Reposted
My comment: Is scale loss always part of evolving a pelagic lifestyle? Is Is always about swimming? Maybe - or maybe not. Conclusion: More fossils and research needed🤩🧪
www.science.org/content/arti...
www.science.org/content/arti...
Ancient sea turtle discovered in Lebanon reveals a surprising evolutionary history
Oldest known sea turtle soft tissues could help reveal how a variety of vertebrates adapted to ocean living
www.science.org
October 20, 2025 at 7:49 AM
My comment: Is scale loss always part of evolving a pelagic lifestyle? Is Is always about swimming? Maybe - or maybe not. Conclusion: More fossils and research needed🤩🧪
www.science.org/content/arti...
www.science.org/content/arti...