New behavioral #paleontology paper out today about tyrannosaur predation! The authors (Wyenberg-Henzler & Scannella) contend that the find is "consistent with a bite inflicted during an attempt to control the struggling Edmontosaurus or deliver a killing blow followed by carcass consumption". Nice!

Probable evidence of *successful* predation by a non-avian theropod. Lucky day for paleontologists and enthusiasts! peerj.com/articles/207...

I've decided to revise and update one of my most important and popular blogposts "How do I become a paleontologist?". I still get asked this every few weeks so having a new version of this post to share is so useful to put people on track. archosaurmusings.wordpress.com/2026/02/17/h...

#Kwanasaurus (Martz & Small, 2019) was native to North America ~210my ago. It belongs to the silesaurids - a clade that is increasingly interpreted as a step in the evolution of the ornithischian dinosaurs. Its leaf-shaped teeth indicate it was already well on its way to herbivory.

🚨 UK Student Palaeo Research Opportunity 🚨 Brymbo Fossil Forest are offering students the chance to get involved in active palaeontology research & excavations ⚒️ at a unique #Carboniferous fossil site in Wales 🏴󠁧󠁢󠁷󠁬󠁳󠁿 - See below for more details ⬇️ #Paleontology #Geology #Fieldwork #FossilFriday #ECR

A new titanosauriform with European affinities in the Early Cretaceous of Brazil: insights on Somphospondyli phylogeny, histology and biogeography Dasosaurus tocantinensis gen. et sp. nov. www.tandfonline.com/doi/full/10....

I dug into the Epstein files for this story. Jack Horner visited Epstein at Zorro Ranch in 2012, emails show. He later thanked “the girls” as hosts. Now a Chapman U fellow, Horner regrets using the term in emails. The university is looking into the files. www.latimes.com/socal/daily-...

happy #FossilFriday. It is very early in the year and I already have a favorite paper with the newly described Haolong. HOWEVER, this is *not* a feathered dinosaur! The structures on Haolong are very different from filaments. A 🧵

Maybe a bit late for web timing, but ehy, NEW PAPER ON #fossilfriday!!! I am proud to present you Haolong dongi gen. nov. sp. nov., a new hadrosauroid from the Early Cretaceous of China! The specimen, almost complete, is a juvenile iguanodontian from the Yixian Formation of the Barremian (125 Mya).

VOLUNTEER ON A DINOSAUR DIG: We run one of the only free dinosaur digs in the USA. We work public land and the fossils go in our public museum, forever. It's hard work, but we find some cool things. If this sounds like you, we're taking applications. Link in comms. #dinosaurs

CANNIBALISM OF AN ADULT TYRANNOSAUR BY A JUVENILE: Our new study on a Badlands Dinosaur Museum fossil reveals dinosaur cannibalism where a juvenile tyrannosaur feasted on the carcass of a dead adult! 3D reconstructions supervision Yu Xin, designer Shen Li, sculptor Liang Junwei /1

What is prospecting? In paleontology, prospecting means carefully scanning and exploring the landscape for fossils exposed at the surface. Several of our active dig sites were first discovered this way by participants, proof that just being observant can lead to real scientific discoveries!

Introducing Xenovenator espinosai, a new troodontid dinosaur with some fascinating cranial anatomy. I had the honour of being approached to create the illustration for this week’s official announcement. (1/3) #SciArt

#Xenovenator is one of the first named dinosaurs of the year! Assigned by Rivera-Sylva et al (2026) to the troodontid lineage, it has oddly thickened frontals - creating a bulbous/domed forehead. Could this be a combat or display adaptation? It's remains from Coahuila, #Mexico date back ~73m years.

Happy #FossilFriday from the West Gold Hill Dinosaur Tracksite in #Colorado! These sauropod footprints are exposed for roughly 100 meters and can be accessed via a hiking trail on public lands! Apart from being a notably long trackway, they are also unique for being at ~2800 meters in elevation

Out in @nature.com today, we shake up the ornithischian family tree. Remember those weird Late Cretaceous iguanodontians, the rhabdodontids? Well they're weird because they aren't iguanodontians. They're ceratopsians. Well, at least some of them are... www.nature.com/articles/s41...

Did spinosaurids really survive into the latest Cretaceous? The postprint for our latest work on these incredible dinosaurs is out today, where @neilgostling.bsky.social, @tetzoo.bsky.social and I examine claims of spino persistance beyond the Cenomanian www.ameghiniana.org.ar/index.php/am...

2025 was eventful to say the least... In my world, and why posting Dino Facts has been much less frequent, is my little hatchling arrived! A big shoutout to @adamrl.bsky.social for putting this Rex & chick print for sale so I could hang it in the nursery! Hopefully 2026 is less hectic for us all

By my count, 46 new species of Mesozoic dinosauromorph (& lagerpetid) taxa this year, which is close to the average for the time period 2003-2025 (the range over which I have been compiling data):

Merry Christmas, to one and all!

Manipulonyx, new WEIRD alvarezsaurid A.O. Averianov, A.V. Lopatin and A.A. Atuchin (2025) Forelimb structure and function in a new Late Cretaceous parvicursorine theropod dinosaur from Mongolia Proceedings of the Zoological Institute RAS 329(4): 382–408 www.zin.ru/journals/tru... …

New alvarezsaurian dinosaur Manipulonyx reshetovi: www.zin.ru/journals/tru... As if alvarezsaurid hands couldn't get any weirder, this one preserves several odd, spike-like elements, interpreted as adaptations for gripping eggs. I have thoughts but they'll have to wait... 🧪 (📷Averianov et al.)

Interesting preprint suggesting that recently described fossils from Brazil described as a new ctenochasmatine pterosaur, Bakiribu, preserved within a regurgitalite, instead represent the gill arch apparatus of an actinopterygian fish: www.biorxiv.org/content/10.6...

Fresh. Water. Mosasaur. In. The. Hell. Creek. Formation. www.youtube.com/watch?v=tn8l...

Excited to announce that my second manuscript, “Fossilised Melanosomes Reveal Colour Patterning in A Sauropod Dinosaur” has been published in @royalsociety.org !! Diplodocus scales are complex and diverse, and it turns out their color patterning was even more so. A 🧵🦕 1/26

The "caudofemoralis longus" is a muscle that leaves obvious evidence of its existence on the bones of dinosaurs. This muscle that retracted the leg during locomotion was anchored to the thigh bone at the 4th trochanter (see pic, labeled "d" where the bone is deformed by musc stresses) & to the tail.

Lythronax argestes. Loewen et al., 2013. Paleoart by Frank Lode. #Lythronax #tyrannosaur #dinosaur #animal #wildlife #paleoart #palaeoart #Cretaceousperiod #NorthAmerica #Utah #WahweapFormation #GrandStaircaseEscalanteNationalMonument

There were so many big paleo publications made this year, especially in the last few months. First sauropod with gut content, nanotyrannus X2, new hadrosaur mummies, new pterosaur in vomit. You think any more big things will come before the year ends????

TOMORROW (Thurs, 8pm ET/6pm MT/5pm PT) Our Annual field report! Learn about fossil discoveries so new we're still cleaning them up in the lab! Live & FREE on Youtube, Facebook Live, & Twitch (FossilPreparator and @paleontologizing.bsky.social . Links in comms! #fossilfriday #dinosaurs #scicomm

Re‐evaluation of a soft crested Edmontosaurin, with implications for hadrosaurid life appearance and diversity - Sharpe - The Anatomical Record - Wiley Online Library anatomypubs.onlinelibrary.wiley.com/doi/10.1002/...

if you see this post, your actions are: - if you have a spare buck, give it to Wikipedia, then repost this - if you don't have a spare buck, just repost your action is mandatory for the world's best source of information to survive

New seasonal paleontology positions available for Dinosaur National Monument, Petrified Forest National Park and Fossil Butte National Monument. Apply soon, they close after they receive a certain number of apps! #NPSpaleo #PaleoJobs www.usajobs.gov/job/850816000 www.usajobs.gov/job/850816700

What might be my favourite fossil has been just published by Kiat et al. 2025. Years ago I saw a pic of this Anchiornis specimen in nat geo article and I audibly gasped.preserving not only the feathers but also the original patterns as well. I made this drawing on the spot. Maybe its time to do v2.0

Have learnt from Andrea Cau that French palaeontologist Philippe Taquet died yesterday, aged 85. Taquet published a substantial amount on north African and French #dinosaurs, including Ouranosaurus, spinosaurids, the dromaeosaurid Pyroraptor and much more.

🚨New paper alert!🚨🤩 🧪⚒️Welcome the first filter-feeding pterosaur from Brazil: Bakiribu waridza, from the Araripe Basin!! 🥳 The new species is AWESOME and was discoverd inside a regurgitalite 😱🤍 www.nature.com/articles/s41...

A Brazilian Pterodaustro-like thingie found in a putative regurgitalite (that is a fossil vomit, yes), probably from a spinosaur Fantastic! @titoaureliano.bsky.social @alinemghilardi.bsky.social www.nature.com/articles/s41...

Alright, now that I'm not on the road - full thread on our new azhdarchoid phylogeny paper and what it means for pterosaurs big (like this one) and small! 1/23

it seems that hadrosaurs were getting a little freaky with it 🤔 bertozzo et al. propose that the prevalence of tail pathologies in hadrosaurs suggests that these injuries were incurred during procreation (art by emiliano troco) www.cell.com/iscience/ful...

DINOVEMBER 2025 - DAY 2: OURANOSAURUS (One of my top favorite dinosaurs!) #dinovember #paleoart #paleoartist #dinosaurs #dinosaur #nanotyrannus #sciart #science #prehistoric

The problem with Nanotyrannus is that the remains people argue over aren't mature animals, leading many researchers to conclude they're just young T.rex (even if that idea also presented some sticky problems.) To finally settle it, folks said, you'd need to find a Nanotyrannus adult. They did.

Another absolutely spectacular entry in David James Armsby’s incredible “Dinosauria” short film series. This might mark the first time Scutellosaurus has a prominent role in a work of dinosaur media, and it makes for a very memorable debut.

Check out this animated short, it features a 🥁feathered dinosaur🥁

“The Bull” This piece was done over the last year as a commission for the new card game “Zoic”

🚨NEW TRIASSIC THEROPOD NAMED🚨 a warm welcome to anteavis crurilongus, a basal theropod that was found in the late triassic ischigualasto formation of argentina! the paper by martinez et al. can be found here www.nature.com/articles/s41... (art by jorge blanco)

The abelisaurid line of carnivorous #dinosaurs likely had a wide range of skin patterns on their head - as noted and mapped by Delcourt (2018). His conclusion: some areas were likely adapted for social behaviours like intraspecies combat. Increasingly armoured heads seem to be a derived trait.

For #FossilFriday, it's a *NEW PACHYCEPHALOSAURID*(!), and a project that is very near and dear to my heart. Let's welcome #Brontotholus_harmoni!

Animated Scutellosaurus!! (Also Dilophosaurus, prosauropods, and dimorphodonts, but I think I've seen animations of all those before...) youtu.be/BYCjeNQvISM?...

Tyrannosaurus rex was named 120 years ago today on 4th October, 1905. I would do things a little differently now, but this drawing is from 2020.

It’s National Public Lands Day! From hiking Montana’s gorges to uncovering dinosaur bones, our work is only possible thanks to public lands. These places are living classrooms where fossils are studied and science connects people across generations. Go out and enjoy your local public lands today!

A megaraptoran skeleton! From the end of the Cretaceous! Excited about the announcement of Joaquinraptor, the top predator down south when tyrannosaurs ruled the north. The Schwarzengger to T. rex's DeVito (at least in the arms category). My thoughts: www.livescience.com/animals/dino...