#ZAVACEPHALE IS FINALLY OUT! 🥳 Our first definitive Early Cretaceous pachycephalosaur! (~15 my older than the previous oldest pachycephalosaurs) And the first hand material for the clade! I can't tell y'all how much of a pleasure it was to review this paper! ☺️

友人の作ったオリジナル手帳のリフィルを交換。一年ぐらい使い続けて、皮の質感がちょっとずつ変化してきてる。 あとは靴を新調。このこも使いまくって、ちょっとずつ育ててく

Join us! We are hiring a new #curator at the #AMNH in #Vertebrate #Zoology careers.amnh.org/postings/4600 #academicjobs #tenuretrack

Excited to be in Fukui, Japan, for the 6th International Symposium on Asian Dinosaurs #ISAD2025 which starts today. Fukui is a dinosaur town (my kind of town!), with life-size robotic dinosaurs around town! 🦖

New paper out yesterday "New specimens of the arthrodire Bullerichthys fascidens Dennis and Miles 1980 show incipient site-specific osteichthyan-like tooth addition and resorption" Read it now in Swiss Journal of Palaeontology: sjpp.springeropen.com/articles/10....

An exciting update on the human joint side – we found that lateral patellar tracking and malalignment are correlated with progressive cartilage damage, and that the 3D metrics we've been developing to describe PF morphology can be used to quantify the risk. journals.sagepub.com/doi/10.1177/...

Major update to Open Source photogrammetry software Meshroom Meshroom has for some time been one of my top choices for open-source or free photogrammetry software, offering a really deep amount of customization and tinkering. However, while this blog made a big splash early on reviewing all the…

With a pristine skull, tiny phalanges, gastroliths, & an articulated tail, Zavacephale is the oldest & most complete pachycephalosaur ever found #fossilfriday I had the pleasure of photographing it last week, what a beauty! Congrats to the authors, read about it here: www.nature.com/articles/s41...

Shaken to hear Mark Norell passed—good friend, trusted colleague, giant in our field. Coincidentally, I got the news as I was working on my talk for the Intl. Symp. on Asian Dinosaurs in Fukui later this month. Here's my slide on Mark’s impact on Asian dinosaur science. It hurt to add 1957–2025. 😥

When I was 10, I wrote to Mark with my ideas about dinosaur digestion. His response was encouraging, gracious, and part of what kept my interest in paleontology alive, and likely led in part to my path into education with high schoolers. Thank you, Mark. 2/2

We lost Mark Norell today. Dinosaur hunter extraordinaire. The coolest dude alive. My PhD supervisor. Wherever you are, raise a glass of your favorite lager or single malt, as it is what Mark would want.

So frustrating when papers on fossil trackways have no photos & have the most minimalist, line-drawing aerial view renderings. They're helpful & informative but also give no indication of depth (important!) or the substrate. #paleontology #paleoart #ichnology

Bumping to the Fishes! and Science feeds🐟🧪

🧪🚨We’ve just published a new paper!🚨⚒️ In it, we explore the origin and evolution of air sacs in pterosaurs and their precursors. (+) #Paleontology #Evolution #Biodiversity onlinelibrary.wiley.com/doi/10.1111/...

カンブリア紀の鋏角類として知られるMollisonia の脳の神経配列を詳細に分析 予想されたようなカブトガニのような脳構造ではなく、現代のクモやその近縁種と同じように構造化されていることを発見→Mollisoniaはクモ類 クモ類の祖先は海中で進化した可能性を示唆 ニュース news.arizona.edu/news/tiny-fo... 論文OA クモ類の脳のカンブリア紀起源 www.cell.com/current-biol...

New #JRSocInterface paper: The time-dependent reproduction number for epidemics in heterogeneous populations. Read more: royalsocietypublishing.org/doi/10.1098/... #ComputationalBiology

Really glad to share with you what would be the oldest evidence of the epidermal skin of early synapsids, with the description of sphenacodont body impressions, likeky belonging to Dimetrodon teutonis, from the early Permian of BROMACKER! Behold Bromackerichnus! www.cell.com/current-biol...

Study extends fascicle-tracking algorithms to chick embryos capturing high-res data from first contractions. Despite minor artifacts in small muscles results match manual segmentation, useful for studying early muscle–bone interactions Molnar et al anatomypubs.onlinelibrary.wiley.com/doi/10.1002/...

New paper day! Phil Bell led a great study on some *INSANELY COOL* titanosaur tracks our expedition found in Mongolia. The scales in particular are extra awesome - they're like little pyramids, and they *may* have helped with scratch digging and/or walking on sandy surfaces!

Oh woah -- this fossil looks extraordinary. Shri rapax, a new, Mongolian #Velociraptor-like dromaeosaurid with robust hands and indications of a powerful bite. www.tandfonline.com/doi/full/10.... #dinosaurs #Cretaceous

Rothier, P.S., Herrel, A., Benson, R.B.J. et al. Body mass evolution as a driver of morphological and ecological diversity in terrestrial mammals. BMC Ecol Evo 25, 69 (2025). doi.org/10.1186/s128...

⚠️ Nice opportunity to register and participate 🇯🇵 🦕 ⬇️ dinoasia.asia/register/ #conference #dinosaur #japan #palaeontology #science #research #fossils

Excellent case where specimen based research and methodological innovation results in cardinal revision of dominants of marine biomass in the Late Cretaceous. Squids were diverse and dominant over other cephalopods and fish! www.science.org/doi/10.1126/... 🧪 ⚒️ #Paleobio #Geology #EvoBio

池上くん、伊庭先生、おめでとうございます！ 白亜紀の海にはイカ🦑だらけ Congrats Shin!, Prof. Iba!! science.org/doi/10.1126/sc… Origin and radiation of squids revealed by digital fossil-mining | Science

Synapsid limb evolution reveals complex journey toward upright posture. Analyzing 936 bones from 330 species, new study uncovers mosaic shifts in humerus & femur proportions over 320+ million years—shedding light on rise of mammals Bishop & Pierce anatomypubs.onlinelibrary.wiley.com/doi/10.1002/...

#金曜だから化石貼る #FossilFriday 古巣・北海道大で開催される日本古生物学会2025年会(6/27~29）にて，夜間小集会（6.28（土）18:15~)「”みえない”モノによる形態進化史の再構築」を行う予定です．詳細はまた改めて告知いたします．

Flannery-Sutherland, J.T., Elsler, A., Farnsworth, A. et al. Landscape-explicit phylogeography illuminates the ecographic radiation of early archosauromorph reptiles. Nat Ecol Evol (2025). doi.org/10.1038/s415...

The Perle (1977) "Alectrosaurus" material is FINALLY described!! Voris, J.T., Zelenitsky, D.K., Kobayashi, Y. et al. A new Mongolian tyrannosauroid and the evolution of Eutyrannosauria. Nature (2025). doi.org/10.1038/s415...

【プレスリリース】 『研究者4人と市民160人が垣根を越えて全国一斉ヘビ調査 ～下北半島から屋久島までヤマカガシの色彩多型の記載に成功～』 久保 孝太 特任研究員 #東京大学 #東大理 #地惑 www.eps.s.u-tokyo.ac.jp/focus20250527/

Skeletal reconstruction of Iberomesornis romerali holotype LH-22. Scale bar is 1 cm.

The next International Symposium on Early and Lower Vertebrates (ISELV) will be held in Berrechid, Morocco in early February 2026 🦈🐟🐸 #palaeontology #EvoDevo sites.google.com/view/iselv-1...

Interested in applying for a Marie Skłodowska-Curie Postdoctoral Fellowship this year? Feel free to reach out! We've got micro🔬, invert 🪸, and vert palaeo🦕 @es-ucl.bsky.social! 📆 We are accepting Expressions of Interest until 9th June! marie-sklodowska-curie-actions.ec.europa.eu/actions/post...

Our paper was published in Zoological Science of the Linnean Society! Community science data highlight the vast colour pattern variations in the Japanese natricine snake (Rhabdophis tigrinus) academic.oup.com/zoolinnean/a... Press release in UTokyo www.s.u-tokyo.ac.jp/en/press/108...

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

Dental microwear texture analysis (DMTA) is key for dietary reconstruction, but different 'scopes yield variable results. Consistent diet signals found across 5 tested devices despite inter-device variation Winkler & Kubo propose standardization anatomypubs.onlinelibrary.wiley.com/doi/10.1002/...

「化石」を探しに行ったはずが、「つい最近寿命を迎えたかのような姿」で発見…進化生物学者が南島で見た「衝撃の現実」 @gendai_shinsho gendai.media/articles/-/1...

化石：琥珀の堆積物には、古代の津波の痕跡が残っているかもしれない 論文OA www.nature.com/articles/s41... www.natureasia.com/ja-jp/resear...

A tough but informative read: www.cambridge.org/core/journal...

Huge congrats, Kubota san, Iba san! Amber in the Cretaceous deep sea deposits reveals large-scale tsunamis Sci Rep 15, 14298 (2025) www.nature.com/articles/s41...

This paper was led by Prof John Long from @flindersuniversity.bsky.social, but wouldn't have happened without our amazing citizen scientists, John Eason and Craig Eury, who found the fossil, as well as Grzegorz Niedźwiedzki, Jillian Garvey, Aaron Camens, and Per Ahlberg @perahlberg.bsky.social

Thrilled to announce our latest paper, published today in @nature.com on the oldest fossil amniote trackways, from the earliest Carboniferous of southeastern Australia. www.nature.com/articles/s41...

Fossil claw prints found in Australia were probably made by the earliest known members of the group that includes reptiles, birds and mammals The findings suggest that this group — the amniotes — originated at least 35 million years earlier than previously thought https://go.nature.com/4j6rhMB

FINALLY!!! www.cambridge.org/core/journal...

Uno, Y. & Hirasawa, T. (2025) Multiple developmental origins of the avian propatagial muscle and their evolutionary implications. Journal of Anatomy, 00, 1–15. Available from: doi.org/10.1111/joa....

Congratulations !! Uno san and Hirasawa san! Multiple developmental origins of the avian propatagial muscle and their evolutionary implications onlinelibrary.wiley.com/doi/full/10....

The disparity of domestic dog and cat breeds is just sick. doi.org/10.1073/pnas...