Fascinating headbutting behaviour between two Iberian lynxes

And with that, the size chart enters a new frontier! It will likely keep stretching out to the sides, as well as further down - but I think we've hit the upper limit with that titanosaur.

Sketching Triceratops for a commission I am currently working on These are sketches of Triceratops in various positions. It is always fun to go back to Triceratops #paleoart #dinosaur #art

Albertosaurus dinosaur illustration for James Stryker's paleoart project. #Paleoart #Dinosaur #Tyrannosaurid #Albertosaurus #Paleoillustration #SciArt

#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! ☺️

New dinosaur day! Meet Zavacephale, the oldest and most-complete pachycephalosaur yet described. And it’s tiny, a beeper that only weighed about 10kg. I’ll tell you all about it at NatGeo.

Chinzorig, T., Takasaki, R., Yoshida, J. et al. A domed pachycephalosaur from the early Cretaceous of Mongolia. Nature (2025). doi.org/10.1038/s415...

The coasts of Lemuria are an ever busy interface between and and sea. The calls of penguins and parrot relatives fills the air while semi-aqautic whales and sirenians wabble on the beaches.

Another not-clam fact: Juliidae snails have a hinged shell like clams, entirely by convergent evolution! For ~100 yrs they were only known from fossils and assumed to be clams! The commonality of the hinged form makes me hope there are clamlike aliens out there, waiting to make 1st contact (240)

Forgot to post here as well! Oh boy, this was a tricky one, went quite a bit back and fourth on the composition, specifically the rocks/whales. In the end this sea grass meadow of Lemuria got it's rocks back but also retained some of the whales sleeping in the back.

Very excited to present the first ornithomimosaurs from Early Cretaceous of Germany. Artwork by @joschuaknuppe.bsky.social and the paper is OA: www.app.pan.pl/article/item... Enjoy! More is to be described from this place

With great pleasure I would like to introduce you to the first ornithomimosaur from Germany! The fossils of this charming bugger are from Balve, a locality that preserves early Cretaceous fossils in a Devonian reef that had karstified already back then, giving us: cave dinosaurs

Prehistoric Planet Ice Age out later this year... such a thrill to put this series together, oh my goodness are you in for a treat :) Hopefully news on events and publicity coming soon! Sloths, cats, rhinos, glyptodonts AND SOOOO MUCH MORE!!

I am now at liberty to share with you another of the numerous concept art pieces I did for the upcoming docuseries “Surviving Earth”. This time is for the juvenile Ischigualastia jenseni #paleoart #SurvivingEarth #conceptart #nbcuniversal

Jormungandr walhallaensis

Shandong Schism

Hatchling vs lightning, here’s illustration I made for the paper “Fatal accidents in neonatal pterosaurs and selective sampling in the Solnhofen fossil assemblage” by Smyth et al., 2025. Paper below👇

63 Species made it in here, all created by the community and curated by me and the Lemuria council. Besides corals and sponges you also get a first look at our new major reefbuilding clade, the worm snails, more on that in the next mural.

The first two pieces of Lemuria Phase II are done and here you get the coral reefs! An incredibly crowded mess of sessile and mobile critters trying to get by. One of my whales also sometimes visits here but since it's 11 m long I only show it's lower jaw/skull here...

over tiny armed crocs to slender dugongs that thrive in the warm shallow waters. The snail reefs are one of the unique environments that we created for this project, born from observations of living relatives and slight tweaks to the trajectory of their evolution...

The second habitat we visit in Lemuria Phase 2 are the snail reefs, a community largely supported by colonies of vermetid snails and encrust over rocks all along the coast. Between the entwined shells and rigid tubes you can find a unique fauna from weird little sharks...

To liven up Tuesday afternoon, have some speculative #dinosaurs adapted for modern habitats. Respectively, they are the magnificent and steppe fissurefrills, the berk, and the grand field titan. It's nice to take a break from pure #paleoart every now and then, and designing animals is fun.

woah this is genuinely, utterly WILD Ant queens of one species produce males of another species, so she can then mate with them and produce hybrid workers! This is so gloriously weird I can't quite compute it 🤯🧪🐜 www.nature.com/articles/d41...

This one? I believe it’s by @villesinkkonen.bsky.social but I might be wrong about that.

ICHTHYOSAURS. from the video (www.youtube.com/watch?v=Y3j1...) I dedicated to this diverse lineage. many more are included there. this poster is also available at redbubble (link in profile) for prints and more #ichthyosauria #marinereptiles #paleoart #himalayasaurus #shonisaurus #temnodontosaurus

Results from the #paleostream! Jaggermeryx, Kostensuchus, Rubidgea and Francocaris.

There is even a brief piece of animation by Gabriel Diaz Yanten featuring the animal with some of its contemporaries like the enormous megaraptoran Maip

Croc fans are eating good today, we just got a new and exceptionally well preserved robust peirosaurid from Patagonia: Kostensuchus atrox We have most of the skeleton, which suggests a total length of perhaps up to 3.5 meters

This is how much Spicomellus changed in the last four years: 2021 reconstruction by Joschua Knüppe on left based on single rib known then; 2025 reconstruction by Matt Dempsey based on new material on right. My guess: when we get articulated material it's going to prove to be even weirder.

Ceratosaurus (1:1 scale) with removable (magnetic) teeth and sclerotic rings. Available to order at Scaled Beast (along with smaller more manageable versions 😊)

Most of the animals living here were rather small by marine reptile standards, probably because of the conditions they lived in, and yet this formation gave us, in my eyes, one of the most charming collections of Triassic goofballs. Size chart by me this time, did this a while ago.

Result of the Jialingjiang Formation #paleostream! This might be one of my favorite Triassic formations, although I might be biased because I love hupehsuchians and this formation just manages to hold all fot them.

My #Patreon feed this month features three new #pterosaur #paleoart pieces: Pteranodon, Tupandactylus and Jeholopterus sp., alongside essays concerning what is known of, and what some have predicted about, their colour. Check this out at www.patreon.com/c/markwitton. #sciart #fossil #paleontology

The more animals join the lineup, the more absurd this ecosystem appears. More to come!

Undoubtedly the most impressive of the Kem Kem theropods, Spinosaurus itself. Size comparison below ⬇️ #sciart #paleoart

Very quick Sarcosuchus imperator #paleoart comm!

be under the Baurusuchus genus, here are some headswaps with B. pachecoi and the bigger B. salgadoensis, the postcrania remains largely if not fully the same as seen with other specimens Note the 𝘃𝗲𝗿𝘆 thick neck and tail chevrons, very puny Illium, and the small osteoderms arranged as-

Baurusuchus skeletal reconstruction and specimen guide! should be the most accurate of this animal yet out there Sadly, there are several more complete undescribed specimens of this guy at different ontogenetic stages stored in museums full skeletal there is B. albertoi, which might not actually-

An imposing Langstonia scavenges a Xenastrapotherium carcass, in the Miocene of Colombia #paleoart

Keresdrakon-concept

result of this week's special 2 hour #Paleostream flocking! for this flocking we spent 2 hours on just Spicomellus, however, i spent an additional 6 hours on my piece #paleoart #sciart #scicomm #dinosaur

I admit that the main reason for doing it has been the wonderful reconstruction we’ve seen these past few days, and to see if I could create something at least somewhat similar with my own means and in a more or less quick way

My latest! I wrote about a newly-discovered land crocodile the size of a siberian tiger, part of a larger story of competition between galloping crocodiles and predatory dinosaurs in South America that lasted well into the Cenozoic

If you don't have access to Nature, but would like to read our paper on the new specimen of #Spicomellus, you can read it online at this link with no subscription: rdcu.be/eCJK3

Here's the paper: www.nature.com/articles/s41...

A couple days away from social media and the unsuspecting Spicomellus turned out to be one of the coolest dinosaurs ever

So this is Spicomellus

Tonight's #paleostream had only one goal: paint a Spicomellus in 2 hours so you don't have to listen to my runny nose for too long.