Visualising a fun fact. #sciart

2026年、年初のEditorial：AIが生成する粗悪な論文に対抗 www.eurekalert.org/news-release...

Egg-stealing dinosaurs (Manipulonyx) were a thing in the Mesozoic. Unique combinations of resources enable unique niches and unique body plans. www.zin.ru/journals/tru... 🧪 #Geology #Paleobio #EvoBio

Manipuloyx, a new alvarezsaur with really fascinating hands! The condition of the fingers isn't that unusual for the clade but the OSTEODERMS on the hand are new!

Wow, what a unique manus ! www.zin.ru/journals/tru...

JOB ALERT! Collection Manager job going in Palaeontology at the Australian Museum in Sydney, Australia iworkfor.nsw.gov.au/job/collecti...

#FossilFriday Beautiful fossils in the Chengjiang Biota

There has been a debate since the skull’s discovery in 1942: whether Nano was a small-bodied tyrannosaur that lived with Tyrannosaurus, or just a juvenile T. rex. This has major implications for how we understand T. rex growth and carnivores within last ecosystems to host non-bird dinosaurs (2/12)

Very excited to share that our latest paper is out in Science! We show that the type specimen of Nanotyrannus—an isolated skull—is fully grown, showing that it is not a juvenile Tyrannosaurus rex but a distinct species (1/12) www.science.org/doi/10.1126/...

I've made some smaller beanie versions of the Devonian jawless fish - Zenaspis! At 25cm long, these are lifesize! www.palaeoplushies.com/shop/zenaspis I ship worldwide from the UK, US tariffs collected and pre-paid for easy delivery!

東ゴビ盆地の白亜紀後期初期の地層内に保存された長期にわたる大陸間乾燥化 白亜紀後期初めバインシレ層について、堆積学的・同位体比解析アプローチにより古環境を復元 一貫した乾燥化ではなく、下部：広大なエルグ（砂丘）が卓越　上部：成熟した氾濫原 これまでバインシレ層上部と誤認されていた赤色層シーケンスは、ジャヴクラント層（旧称ジャドフタ層またはバルンゴヨト層）として再定義 バヤンシリー層とジャヴクラント層において、エルグ、氾濫原、交代古土壌という3つの連続した環境相を経た気候変遷の証拠を示す 論文OA onlinelibrary.wiley.com/doi/10.1111/...

Our new MADEx team paper is out now in Sedimentology: we refine the geology & paleoenvironment of Mongolia’s Bayanshiree Fm, home to iconic taxa like Segnosaurus & Garudimimus: a 95.5-89.6 Ma age places this rich paleobiota at the acme of the Cretaceous Thermal Maximum! 🏜️🦕🌡 🔗 doi.org/10.1111/sed....

超ふつうディテールアップ回（パテで真っ黄色） hjweb.jp/article/2409...

#SVP2025 was finally an opportunity to show the excellent reconstructions of Dysalotosaurus created by @dragonsofwales.bsky.social

#2025SVP For people who missed my talk: I’m happy to give this or longer versions via zoom/in person for your seminars/colloquiums. Being based at a small museum w/ little daily exchange among peers, it’s a great opportunity for me to stay connected & for you to learn about our shelled overlords.

Join us in Sheffield! We are keen to support early career researchers in applying for independent research fellowships (IRFs) to join our friendly and collaborative environment, in areas related to developmental biology, stem cells and regenerative biology, and neuroscience.

#FossilFriday Embryonic and juvenile specimens of tyrannosaurid lower jaws (Daspletosaurus) in MOR!

I’m currently at SVP in Birmingham! On the final day, in the skull symposium, I’ll be giving a talk showing that the mammalian face is an evolutionary novelty that arose by overriding the ancestral jaw framework — and that the mammalian premaxilla is the septomaxilla. #SVP2025 #2025SVP

恐竜卵殻から年代を知る新手法 卵殻中の方解石に含まれる微量のウラン・鉛を測定 北米西部内陸盆地から回収された恐竜の卵化石を直接年代測定したところ、灰層を挟む高精度年代の5%以内の誤差で年代測定 ゴビ白亜紀後期の恐竜卵殻年代を初測定 地球化学データと微量元素マッピングを組み合わせた結果、非鳥類型恐竜の卵殻は堆積物との接触を通じてウラン（U）を初期に吸収していたことが示され、これは第四紀の鳥類卵の知見と一致 ニュース www.su.ac.za/en/faculties... 論文OA www.nature.com/articles/s43...

Tucker, R.T., Venter, K.E., Lana, C. et al. U-Pb calcite age dating of fossil eggshell as an accurate deep time geochronometer. Commun Earth Environ 6, 872 (2025). doi.org/10.1038/s432...

違国日記、なんかいい

ニューヨーク、またちゃんと時間とって滞在したいな アメリカ自然史博物館に、セントラルパーク

#2025SVP ! If you want to get an idea of the major steps of 🐢turtle🐢 evolution, come to see my talk on Friday, Nov 14, 8:30 AM, Hall 8. My student Guilherme Hermanson talks just before me (8:15). 4 years of macroevolutionary research on turtles went into our talks, covering many unpublished results.

Bittersweet to see our obituary of Mark Norell published in @currentbiology.bsky.social this week. Godspeed Mark, from Pete, Jim, and me--and the whole AMNH community.

Today's bombshell in @nature.com by Lindsay Zanno & James Napoli @jgn-paleo.bsky.social (bit.ly/4qBE6ng) shows that putative juvvy T. rex fossils actually are Nanotyrannus. I reviewed the manuscript, so Nature invited me to write the News & Views commentary. Free link: rdcu.be/eNv94 🦖

First trip for collection visits in MOR and AMNH!

We'll close out this #FossilFriday with the obvious choice of Nanotyrannus. I couldn't share this CT scanning session at the time (June 2023) but can now. @jgn-paleo.bsky.social brought the holotype Cleveland skull he had on loan, and CMNH VP curator Caitlin Colleary & I joined in the fun!

New skull material of the early therizinosaurian dinosaur Falcarius: anatomypubs.onlinelibrary.wiley.com/doi/10.1002/... 🧪 (📷 @freewillie643.bsky.social & Zanno)

Happy #FossilFriday! Interested in fossil data handling & building analysis-ready databases? New paper out today in Palaeontology @thepalass.bsky.social with @palaeoverse.bsky.social team led by @lewisajones.bsky.social onlinelibrary.wiley.com/doi/10.1111/... Hope it helps! 💻📊📈🦐🦪🦣🐚🪸🦕🦖🐋🐊🐟🦑🐢🐍🦎🐦‍⬛🦂

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/...

北海道大学 新着情報: 北海道中川町で化石を含む琥珀を大量発見～世界的にも希少な太古の陸上生態系の記録～（理学研究院　准教授　伊庭靖弘） www.hokudai.ac.jp/news/2025/10...

Martínez, R.N., Colombi, C.E., Ezcurra, M.D. et al. A Carnian theropod with unexpectedly derived features during the first dinosaur radiation. Nat Ecol Evol (2025). doi.org/10.1038/s415...

Happy #FossilFriday! Meet Brontotholus harmoni (MOR 480), a new pachycephalosaurid from the Cretaceous Two Medicine Formation of Montana. Named after former MOR Chief Preparator Bob Harmon. Bronotoholus was named this week in a @ZoolJLinnSoc paper by MSU alumnus @doublebeam and colleagues.

Excited to see this new #OA article out on turtle head vasculature, led by @seishirotada.bsky.social. It was part of Sei's PhD diss. So much fun injection, dissection, sawing, & µCT of turtles & lizards in the lab with Sei and DJ Morgan—leading to this really nice article! doi.org/10.1186/s133... 🐢

We have a new paper out! Turtle ancestors evolved a shell—but what else? We found that an unique rostral vasculature was also obtained gradually along the lineage, and that one of the earliest turtles Proganochelys likely retained a mostly ancestral state!🐢 sjpp.springeropen.com/articles/10....

#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...