Guillaume Houée 🦷🔬
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guillaumehouee.bsky.social
Guillaume Houée 🦷🔬
@guillaumehouee.bsky.social
Postdoc researcher 🇫🇷 at UTokyo 東京大学 🇯🇵 🗼
Origin & evolution of the vertebrate mineralized skeleton 🦷🦴
Histology, Microanatomy, Modeling development

https://www.researchgate.net/profile/Guillaume-Houee
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I'm excited to finally share our review on the evolution of enameloids and enamels, now published in Biological Reviews!

onlinelibrary.wiley.com/doi/epdf/10....
Reposted by Guillaume Houée 🦷🔬
🚨 Nouvel article faisant suite aux dernières campagnes de fouilles de #Rhinopolis et @cr2p.bsky.social à Franchesse (Allier, France), petit🧵:

sciencepress.mnhn.fr/en/periodiqu...
November 26, 2025 at 7:11 AM
Reposted by Guillaume Houée 🦷🔬
Excited to announce that our new paper is now published in Science Advances 🚀🧠 ‘Acquisition of neural crest promoted thyroid evolution from chordate endostyle’ — check it out here: www.science.org/doi/10.1126/...
Acquisition of neural crest promoted thyroid evolution from chordate endostyle
Integration of neural crest cells into the endostyle developmental program promoted its evolution into the thyroid gland.
www.science.org
August 13, 2025 at 3:33 PM
Reposted by Guillaume Houée 🦷🔬
Nature research paper: Novel assembly of a head–trunk interface in the sister group of jawed vertebrates

go.nature.com/47lrjxX
Novel assembly of a head–trunk interface in the sister group of jawed vertebrates - Nature
Imaging of a Devonian jawless fish reveals advanced features previously thought to be exclusive to jawed vertebrates, challenging the idea that jaws were the primary driver for the evolution of derived traits in the vertebrate body plan.
go.nature.com
August 13, 2025 at 10:53 AM
Reposted by Guillaume Houée 🦷🔬
New #GRAVIBONE paper from @camillebader.bsky.social with Rémy Gilardet, Nicolas Rinder, @johnrhutchinson.bsky.social & @toriherridge.bsky.social on the long bone microanatomy of elephants. Well done Camille :)
academic.oup.com/zoolinnean/a...
August 7, 2025 at 8:17 AM
Reposted by Guillaume Houée 🦷🔬
Campagne de fouilles septembre 2024b :
www.researchgate.net/publication/...
July 3, 2025 at 9:24 AM
Reposted by Guillaume Houée 🦷🔬
Campagne de fouilles septembre 2024a :
www.researchgate.net/publication/...
July 3, 2025 at 9:24 AM
Reposted by Guillaume Houée 🦷🔬
An international symposium is coming next year:
18th International Symposium on Early and Lower Vertebrates
#paleontology 🦈🐟

📅 February 3-8, 2026
📍 Berrechid, Morocco
➡️ sites.google.com/view/iselv-1...
Event
Organisers
sites.google.com
May 30, 2025 at 6:13 AM
Reposted by Guillaume Houée 🦷🔬
Glad to share a new paper led by @yara_haridy and @NeilShubin Lab on the early evolution of teeth! Modern and fossil data point at an ancestrally sensorial function for the earliest dentine
www.nature.com/articles/s41...
The origin of vertebrate teeth and evolution of sensory exoskeletons - Nature
Re-examination of the presumed Cambrian fossil fish Anatolepis reveals previous misidentification of aglaspidid sensory structures as dentine, a vertebrate sensory tissue, showing it to be a...
www.nature.com
May 21, 2025 at 3:14 PM
Reposted by Guillaume Houée 🦷🔬
Wonderful power of exaptation! Sensory organs to feeding structures and weapons in vertebrates:
"patterns of convergence and innervation reveal that dentine evolved as a sensory tissue in the exoskeleton of early vertebrates"
www.nature.com/articles/s41...
🧪 ⚒️ #Paleobio #EvoBio #Geology
May 21, 2025 at 7:14 PM
Thrilled to have co-written a News & Views with P. Janvier on Haridy et al.’s recent Nature paper. They reveal that Anatolepis, once thought to have the oldest dental tissue, is actually Cambrian arthropod sensory armor!
Paper: nature.com/articles/s41...
N&V: www.nature.com/articles/d41...
The evolutionary origin of sensitive dental structures
Fossil data shed light on a debate about when vertebrate dental tissues arose by assigning an early sensory structure to arthropods rather than to vertebrates.
www.nature.com
May 22, 2025 at 6:23 AM
Reposted by Guillaume Houée 🦷🔬
Congrats to Yara and team! They reveal that Anatolepis - previously interpreted as the oldest vertebrate with a mineralised skeleton - is not a vertebrate at all!
Paper here: tinyurl.com/59sdw7x9
and a nice write up by @guillaumehouee.bsky.social & Philippe Janvier here: tinyurl.com/2u6haac8
The evolutionary origin of sensitive dental structures
Fossil data shed light on a debate about when vertebrate dental tissues arose by assigning an early sensory structure to arthropods rather than to vertebrates.
www.nature.com
May 21, 2025 at 3:37 PM
Reposted by Guillaume Houée 🦷🔬
New paper alert! This was a fun study examining intraskeletal growth patterns in leopard geckos using fluorescent labeling. Labels administered in ovo are still present up to 4 years post-hatching! doi.org/10.1111/joa....
Bone labeling experiments and intraskeletal growth patterns in captive leopard geckos (Eublepharis macularius)
In this study, we used fluorochrome labels in captive leopard geckos (Eublepharis macularius) to track bone growth and intraskeletal variability from embryonic to adult growth stages. Overall, the ti...
doi.org
November 27, 2024 at 4:26 PM
Reposted by Guillaume Houée 🦷🔬
A permineralized #Dimetrodon femur ready for #ThinSectionThursday #Paleohistology
April 24, 2025 at 2:19 PM
Reposted by Guillaume Houée 🦷🔬
1/10 🚨🚨 New paper with @tjnear.bsky.social! Here, we revise the systematics of sturgeons using a phylogenetic approach! We confirm an Early Cretaceous origin for the sturgeon total clade and resurrect several genera for living species!
April 25, 2025 at 5:54 PM
Reposted by Guillaume Houée 🦷🔬
Ok first post here! Hi, I study fossil snakes 🐍 and also produce paleoart!... sometimes... 👀
November 23, 2024 at 4:08 PM
Reposted by Guillaume Houée 🦷🔬
Great to see our chicken wing image featured on the cover of @plosbiology.org 🐣🔬! To learn more about how these feathers develop, check out the full article here ⬇️🧪
journals.plos.org/plosbiology/...

@lanevol.bsky.social @genevunige.bsky.social
April 14, 2025 at 12:24 PM
Reposted by Guillaume Houée 🦷🔬
I am beyond honored to announce that our paper (academic.oup.com/evolut/artic...) revealing a molecular mechanism of evolutionary stasis has won the @sse-evolution.bsky.social President's Award

This work would have been impossible w/o my colleagues @tjnear.bsky.social lab and beyond!
The genomic signatures of evolutionary stasis
Abstract. Evolutionary stasis characterizes lineages that seldom speciate and show little phenotypic change over long stretches of geological time. Althoug
academic.oup.com
April 11, 2025 at 8:20 PM
Reposted by Guillaume Houée 🦷🔬
PhD alert: Je cherche un candidat pour travailler sur l'évolution morphologique et fonctionnelle de la tête des squamates apodes. Le projet implique de la biologie évolutive, des expériences et simulations mécaniques et des bestioles à écailles! @mnhn.fr @mecadev.bsky.social
adum.fr/as/ed/voirpr...
March 21, 2025 at 9:55 AM
Reposted by Guillaume Houée 🦷🔬
New Pre-Print Alert! "Teeth Outside the Jaw: Evolution and Development of the Toothed Head Clasper in Chimaeras." We use fossil evidence, development and CT scans through ghost shark ontogeny to describe the emergence of the tenaculum! 👻🦈🦷 @karlycohen.bsky.social
www.biorxiv.org/content/10.1...
April 8, 2025 at 7:08 PM
Reposted by Guillaume Houée 🦷🔬
ICB free read
Show Me Your #Teeth And I Will Tell You What You Eat: Differences in Tooth Enamel in #Snakes with Different Diets

by Dumont, Milgram, Herrel, Shahar, Shacham, Houssin, Delapré, Cornette, @marionsegall.bsky.social

doi.org/10.1093/icb/...

#morphology #ecology #science #biology
April 8, 2025 at 10:58 AM
Reposted by Guillaume Houée 🦷🔬
Magnifique paléoart de ‪@spinojp.bsky.social‬ proposant une première représentation du paléoenvironnement du Permien de Franchesse !
Smoll #paleoart of #Permian life from the lagerstätte of Franchesse, in central France🇨🇵, depicting 🦎Discosauriscus vibing in shallow waters (see #fossils below⬇️)
February 19, 2025 at 9:56 PM
Reposted by Guillaume Houée 🦷🔬
Ouverture de la campagne #Permien 2024 ! ⛏️
Le dégagement de la surface de fouille a déjà permis de retrouver nos premiers seymouriamorphes 🦎 et aeduellides 🐟
February 19, 2025 at 8:49 PM
Reposted by Guillaume Houée 🦷🔬
🚨 Nouvel article sur les rhinocéros éponymes de Gannat ! @manonhullot.bsky.social, membre de l’association, nous présente la paléoécologie des rhinocéros européens lors de la transition Oligocène-Miocène 🦏 (petit🧵) :
February 19, 2025 at 9:33 PM
Reposted by Guillaume Houée 🦷🔬
Smoll #paleoart of #Permian life from the lagerstätte of Franchesse, in central France🇨🇵, depicting 🦎Discosauriscus vibing in shallow waters (see #fossils below⬇️)
November 25, 2024 at 10:03 PM