For today’s #FossilFriday I thought I’d celebrate the fact that this week, the first verifiable hatchling fossils of Tyrannosaurus rex have now been published in the scientific literature! This is great for tyrannosaur research. 1/8

Happy #FossilFriday from this cute little tyrannosaur premaxillary tooth! Tyrannosaurs were heterodont (having different forms of teeth) with the premaxillary teeth at the front of the mouth being shorter and more "D-shaped" in cross-section than the rest. Judith River Formation - Montana, USA

Hypothetical skull reconstruction of the new parasaurolophin hadrosaur, Plesiolophus warnerensis. #sciart #paleoart #paleontology

The anatomy of two troodontid teeth from the Upper Cretaceous of Jiayin, Heilongjiang Province, China sjp.pensoft.net/articles.php...

Matías Soto Núñez, Felipe Montenegro and Daniel Perea (2026) A new aeolosaurini (Sauropoda, Titanosauria) from the Upper Cretaceous of Uruguay Ameghiniana (advance online publication) doi: 10.5710/AMGH.19.06.2026.3689 Free pdf: www.ameghiniana.org.ar/index.php/am...

New at Tetrapod Zoology.... a brand new book on TAXONOMIC VANDALISM and one notorious vandal in particular... tetzoo.com/blog/2026/7/... #herpetology #snakes #books

This same source also mentions how wolves might be able to smell moose with necrotic mandibles or decaying teeth from actinomycosis, allowing them to sniff out more vulnerable prey.

Wow. That sounds kind of crazy!

Nilpanapan, A., Manitkoon, S., Suteethorn, V. et al. A new mamenchisaurid sauropod from the Lower Phu Kradung Formation, Upper Jurassic of northeastern Thailand. Sci Rep 16, 21205 (2026). doi.org/10.1038/s415...

A new mamenchisaurid sauropod from the Lower Phu Kradung Formation, Upper Jurassic of northeastern Thailand nature.com/articles/s41... Uragasaurus kalasinensis gen. et sp. nov. Art: Jæsica ßababi

Amazing interview of Eric Snively by Brian Curtice, regarding the baby T. rex fossils published today. youtu.be/2Rn9Dqa5l9A?...

I looked through the hatchling tyrannosaurid paper. For what it’s worth, the mention of Haversian remodeling in the leg bones (suggesting precocial locomotion) is consistent with a BMIT abstract by Eric Snively that I came across years ago. New to me is the tooth wear.

We can finally ask ourselves the real big questions: who would win in a fight between a T. rex and a house cat?

Filhotes de Tyrannosaurus rex e a Evolução das Estratégias de Reprodução dos Dinossauros www.mdpi.com/2079-7737/15...

Now out in Cretaceous Research, 2 collaborative papers using isotopes to investigate vertebrate palaeoecology & anomalous d13C patterns via a combo of amber & enamel geochem from Saskatchewan. Great work by Ben in leading these for his MSc! More research to come on this topic soon, so stay tuned.

Longrich, N.R.; Makovicky, P.J.; Tokaryk, T.; Cooper, D.M.L.; Saitta, E.T.; Erickson, G.M.; Szekely, T.; Snively, E. Hatchlings of Tyrannosaurus rex and the Evolution of Dinosaur Reproductive Strategies. Biology 2026, 15, 1090. doi.org/10.3390/biol...

A second theropod tooth from the Cauvery Basin reaffirms the presence of troodontid dinosaurs in the Cretaceous of India - Dhiman - The Anatomical Record - Wiley Online Library anatomypubs.onlinelibrary.wiley.com/doi/10.1002/...

Preparator – Field Paleontologist The Geologic Mapping and Paleontology Program of the Utah Geological Survey (UGS) seeking a full time permanent Preparator – Field Paleontologist. This is a unique opportunity to build a career focused on Field Paleontology in Utah. @societyofvertpaleo.bsky.social

Just been chatting with author David Lambert: 93 and still going strong, an author of some of my favourite books from childhood. David is responsible for my involvement in the 2001 Dorling Kindersley Encyclopedia of Dinosaurs & Prehistoric Life, backstory here... tetzoo.com/blog/2022/1/...

Resolving the “ontogeny problem” in vertebrate paleontology, recently published in Paleobiology, by @jgn-paleo.bsky.social - this is a *must read*, esp. for those in the archosaur realm www.cambridge.org/core/journal...

Series of skeletal reconstructions of Spinosaurus spp. Scale is 1m.

“It is difficult to see why the ‘simplest hypothesis’ was that these specimens were juveniles of T. rex, despite sharing no unique characters with T. rex and mounting evidence that other tyrannosaurids did not show comparable ontogenetic trajectories. Perhaps Occam’s razor needs sharpening.”

@jgn-paleo.bsky.social's long-awaited paper on the issue of assessing ontogeny in palaeontology is finally here! congrats james 🎉 www.cambridge.org/core/journal...

heaping stones on the grave of "Nanotyrannus is a just Juvenile T.rex" but I don't think you can argue it isn't warranted at this point. It's perhaps the classic example of the above issue

Herein lies the major issue: while it is possible that some extinct animals remodeled themselves over the course of their lifespans in ways we don't see in living animals, that idea also may be a get-out-of-jail-free card for lumping quite different specimens without much evidence

This is a very interesting paper, which tries to figure out a way through one of the trickier problems in vertebrate paleontology: how do you tell the difference between young animals and different species? It'll be interesting to see how the field engages with this one

Here is a link to an actual "paper" in a predatory journal; excellent trolling from a vampire! www.easpublisher.com/article/arti...

Napoli, J. G. (2026). Resolving the “ontogeny problem” in vertebrate paleontology. Paleobiology, 1–30. doi:10.1017/pab.2026.10105 www.cambridge.org/core/journal...

It is out just in time for #FossilFriday. Napoli's www.cambridge.org/core/journal... ENJOY! The present is the key to the past! @paleontologizing.bsky.social @scifri.bsky.social @societyofvertpaleo.bsky.social @scinews.bsky.social @sciam.bsky.social

Resolving the “ontogeny problem” in vertebrate paleontology www.cambridge.org/core/journal...

Come see my #taphonomy talk tomorrow at #EAVP2026 - 10.48am! Discover the Southernmost evidence of #Pleistocene #hyena denning & #cannibalism in #Asia: Yai Ruak #cave, Peninsular #Thailand 🦴🇹🇭

It's been far too long since Tylosaurus news...so here's another NEW TYLOSAURUS PAPER! 🦎 From me & Mike² (Everhart & Polcyn) For the first time in over 150 years, the holotype of Tylosaurus proriger is fully described & figured in detail. Incredible artwork by Andrey Atuchin

Zietlow, A.R., Everhart, M.J. & Polcyn, M.J., 2026. - Redescription of the holotypes of Tylosaurus proriger and Tylosaurus nepaeolicus (Squamata: Mosasauridae) - Deinsea 24: 1 - 21. zenodo.org/records/2041...

Such an incredible etymology of this legendary tyrannosaur - Tarbosaurus bataar (ancient Greek & Mongolija: "Awesome-lizard hero"). EAVP23, Vilnius. Talk by Justyna Slowiak. 🧪 ⚒️ #Geology #Paleobio

Hot dinosaur news -- actually, not so hot -- a Late Cretaceous sauropod tail vertebra discovered in Antarctica has just been published as a titanosaur. Collected in 1985, so the oldest dinosaur fossil from the continent! www.app.pan.pl/archive/publ... Work by @profpaulbarrett.bsky.social et al.

I and colleagues are working on a response to Frédéric Pittet's new article on spinosaurid rostra and sensory abilities; we've found several aspects that overlap with our own in-prep work on baryonychine crania. And, no, it isn't so much on the taxonomy :) #dinosaurs

Hear me out on my new proposal for theropod taxonomy: The "Pan-Megalosaurus Solution." If it all becomes Megalosaurus, all problems are solved. Even the Nanotyrannus thing goes way. Same for Spinosaurus. Same for Suchomimus. Tyrannosaurus, too. We never have to speak those names again. #winning

Suchomimus is somehow generating much worse takes than Nanotyrannus.

Full article: Getting to the root of it: perspectives on the phylogenetic origins of modern reptiles www.tandfonline.com/doi/full/10....

PITTET F. 2026. — Neurovascular system and dental renewal in the rostrum of Spinosauridae: new descriptions and implications on non-olfactive snout sensitivity of dinosaurs. Geodiversitas 48 (12): 227-272. doi.org/10.5252/geod.... geodiversitas.com/48/12

recent commission of a fictional megaraptoran for @ablearcher.bsky.social, it's called Uluvenator. this is its colouration from spring to early autumn

Khishigjav Tsogtbaatar has passed away at the age of 67 from kidney carcinoma. RIP to him.

#Tyrannosaur hand claw? Found 2 hrs ago, live on @Paleontologizin. From US public lands administered by the Bureau of Land Management. #dinosaur park Fm, 76 million yrs old, Montana. #fossilfriday #dinosaurs. Badlands Dinosaur Museum, Dickinson ND. Loads of good fossils today!

New on the Fossil Files for our Patreon supporters: Digging for dinos in Morocco. I recorded this episode in the field in May. Have a listen to find out all about the latest developments in the Boulemane Dinosaur Project www.patreon.com/posts/161779...

Coppock, C.C., H.C.E. Larsson & P.J. Currie. in press. A juvenile specimen of Gorgosaurus libratus from the Wapiti Formation of northeastern British Columbia, Canada sheds light on the palaeoecology of Upper Campanian tyrannosaurids. Paleo3. www.sciencedirect.com/science/arti...

Research has shown that dogs are more intelligent than we think. But not all of them.

Geometric and linear morphometric approaches to establish taxonomic identity of a controversial tyrannosaurid maxilla specimen www.scup.com/doi/10.18261...

The frontal sinus morphology of Canis etruscus suggests it had a lower proportion of meat in its diet compared to C. mosbachensis, borjagli, and lupus (the extant grey wolf).

Note: no "T. rex cells" were used for this. Collagen sequences synthesized from osteological collagen from a Tyrannosaurus fossil were used. The resultant artificial leather lacks the actual microstructures that would have been present in actual T. rex skin. But biotechbros gotta biotech.