Yawning Prognathodon overtoni for friends's Birthday. Prognathodon is a genus with a complex taxonomy. Some of its species have been reclassified as separate genera, while others are the opposite, such as this one, previously known as Brachysaurana. Done in Paint Tool Sai 2.0. #paleoart

A portrait of Khankhuuluu mongoliensis (or "Mongolian dragon prince"), a tyrannosauroid from the Bayanshiree Formation. Its remains were previously described as belonging to Alectrosaurus, but are now classified as a separate genus. Done in Paint 3D. #paleoart #dinosaur

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

Just in time for spooky season: DINOSAUR "MUMMIES!" Unlike Egyptian mummies, these don't have squishy bits preserved, but the rock around these carcasses had clay capturing texture of scales, a midline crest w/ keratin spikes, &, brand new, feet w/ hooves! 🧪⚒️🦕🦖 www.science.org/doi/10.1126/...

Dire wolf/wolves by Mark Hallett. Had no idea the pack hunt drawing at the bottom right was a thing, so this was a pleasant surprise.

Papiliomaris kluessendorfae, first reported in 1985 as the Waukesha "Butterfly Animal", was recently described as a strange bivalved arthropod with three pairs of large, feathery appendages. Some reports indicate it could reach up to 20cm wide.

Portrait of Tameryraptor markgrafi, a carcharodontosaurid from the Late Cretaceous of Bahariya Formation (Egypt). Its remains have long been attributed to Carcharodontosaurus, but it is distinguished by the presence of a small horn on its nose and symmetrical teeth. #paleoart #dinosaur

An adult Ceratosaurus nasicornis caught juvenile Torvosaurus tanneri. These theropods, like an Allosaurus, were found in the famous Morrison Formation, but their remains are much less common. Despite some differences in food sources, they competed and killed each other from time to time. #paleoart

The first #leech body #fossil predates estimated hirudinidan origins by 200 million years peerj.com/articles/199... @peerj.bsky.social #Annelida

A happy day 2 of #Croctober (lets see how long I can keep this going) Crocs are well known for their parenting, but did you know that we even have fossils of them on their nest? This specimen comes from Germany and clearly shows a Diplocynodon mother that died on her nest

Portrait of dinosauromorph Pisanosaurus mertii from the Late Triassic of Argentina. It was either basal ornithishian (as classified initially) or silesaurid. In any case this animal was herbivore or omnivore a little more than a meter long. Neck filaments are speculative. #paleoart #dinosaur

News @ Urwelt-Museum Oberfranken (UMO) in Bayreuth: new ichthyosaur, Eurhinosaurus mistelgauensis, named today after UMO's prime excavation site, the Jurassic clay pit Mistelgau. @olorotitan.bsky.social beautifully reconstructed the to-be fossil on a belemnite battleground typical for the locality.

The big tableau of early Permian synapsids in the next gallery unified a bunch of mounted skeletons that had previously been in separate cases. A nearby lab area covered the concept of extinction ("the fate of all species") in general terms.

Croc fans simply can't catch a break, after Kostensuchus in late August and Paarthurnax just a week ago we got ANOTHER fossil croc published Meet Thikarisuchus, a very small neosuchian from the Cenomanian of Montana

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...

Duonychus tsogtbaatari, a therizinosaurid from the Late Cretaceous of Bayanshiree Formation (Mongolia). It's known by partial postcranial skeleton including dorsal vertebrae and both forelimbs. Duonychus has only two manual digits, with big and curved claws. #paleoart #dinosaur

Prognathodon currii swimming near small Enchodus pack. Art was inspired by some Pseudorca photoes. #paleoart #mosasaur #prognathodon #mesozoic

#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! ☺️

PARATETHYS INHABITANTS #art #paleoart #cenozoic #miocene #whale #sunfish #extinct

Portrait of Riparovenator milnerae, a baryonychine spinosaurid from Early Cretaceous of Isle of Wight. Remains of this theropod previously were assigned to Baryonyx. In this work I painted color on a black base - an unusual experience! Done in Adobe Photoshop. #paleoart #dinosaur

Colored portrait sketch of Troodon formosus, a troodontid theropod from the Late Cretaceous of USA and Canada. It was initially described by tooth as a lizard and then referred to pachycephalosaurids. Later it became clear that Troodon was a bird-like theropod. #paleoart #dinosaur

Today I downloaded Gimp and did some work in it. It was a lot of fun using the different tools! The result was this portrait of a random megaraptoran. Megaraptora is a clade of possible coelurosaurs (or even tyrannosauroideans) with forelimbs adapted for capture of prey. #paleoart

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

Hi all, me, @richardjbutler.bsky.social and the amazing UK-US-Moroccan team are delighted to announce that.. we have a new specimen of Spicomellus AND IT'S WAY WEIRDER AND WAY COOLER THAN WE EVER IMAGINED!!

Mammut americanum, the elephants relative #art #paleoart

Want some theropod legs? 🙂 New work in progress.

More crocodylomorph critters: Sphenosuchus - the one that started it all Pattisaura - from this year! (do NOT misgender her) Dibothrosuchus - wide-headed chinese boy Litargosuchus - PATHETIC creature.... we must protect,.

Thanks to everyone backing my art book Carbon Based so far! ( www.kickstarter.com/projects/oni... ) Here’s another excerpt, my Archaeopteryx for the awesome Dr Jimgmai O’Connor’s description of the Chicago Field Museum specimen used on the cover of Nature. A process thread 1/

Snakey drake

Velociraptor: An Artistic History in Four Parts! (Art by Thomas Crosby-Smith, John Sibbick, Gregory S. Paul, and Hank Sharpe)

Intasuchus sylvicola, a intasuchid temnospondyl from Middle Permian of Komi Republic (Russia). It was an animal with 20-25 cm skull reinforced with ridges. Intasuchus is part of Inta faunal assemblage. In this drawing proportions were based on probably related Glanochton latirostre. #paleoart

Today’s random piece of nostalgic palaeoart: Maurice Wilson’s Megalosaurus! For a painting done all the way back in 1972, this is shockingly modern! It’s a generic theropod without any distinguishing anatomy of any sort, but that’s basically what Megalosaurus was until quite recently. (1/3)

Great news! Plesionectes longicollum is a new genus and species of plesiosaur from Holzmaden, Germany. www.sachspal.de/plesionectes... This paleoart features two Plesionectes hunting near a colony of Seirocrinus. Digital painting by Peter Nickolaus, 2025.

Emerging Beasts - Bridger Formation New artwork for Tales from the Phanerozoic, a project by João Macêdo. Check out the Eocene chapter here, with the backstory of the scene and detailed information about its environment and creatures: sites.google.com/view/talesfr... #SciArt #Paleoart

Results from the Ocher sub-assemblage zone! This was our first look into the Permian of Russia. The Russian Permian was for the longest time the biggest influence on our idea of this period, besides the red beds in the US. Never the less we rarely think of these formations etc.

Detailed sketch of metriacantosaurid Alpkarakush kyrgyzicus from Middle Jurassic of Kyrgyzstan. This large theropod is known by two partial specimens (subadult and juvenile) from Balabansai Formation. The material includes bones from hindlimbs and postorbital with large boss. #paleoart #dinosaur

Portrait of meridiungulate Pyrotherium romeroi from the Late Oligocene of Argentina. The skull of this big herbivore was massive, with an elongated nostril, so that it could have had a short trunk. Because of this, Pyrotherium was previously classified as a relative of elephants. #paleoart

Homotherium hadarensis ambushing unfortunate Australopithecus afarensis #Sciart

Results from the #paleostream! A Lemurian frog (spec evo wish by @screenthegoo.bsky.social), Ahdeskatanka, Infernodrakon and Mirasaura.

Parasaurolophus walkeri came to drink water somewhere in Late Cretaceous Canada. This is one of the most famous hadrosaurs. It's notable feaure is long crest with internal hollows. The plants on drawing include mosses, ferns and aquatic monocot Cobbania corrugata (Araceae). #paleoart #dinosaur

Speculatively feathered Dilophosaurus wetherilli walks on cracked ground during the dry season. Early Jurassic of United States. Initial sketch was drawn last year, but main part of work was done in recent months. #paleoart #dinosaur

Meet Palaeocampa anthrax, a newly discovered Carboniferous lobopodian, and 150 year old mystery fossil! Palaeocampa is an exceptional lobopodian - it lived in rivers and lakes, bristled with thousands of poisonous spines, and more. 🧵 Open access: nature.com/articles/s42...

I am proud and grateful to present a dream project today in @nature.com www.nature.com/articles/s41... Meet #Mirasaura grauvogeli, a #wonderreptilewith skin appendages that rival feathers and hairs, challenging our view of reptile #evolution🪶🦎

Lusovenator santosi, a Late Jurassic carcharodontosaur from Portugal. It was described from incomplete specimen from Lourinha Formation in 2020. I did much of this drawing last year and fixed some details recently. Based on skeletal by @sassypn.bsky.social. #paleoart #dinosaur

My new theropod species and paper (link at end of post) theropoda.blogspot.com/2025/07/move...

A Once Green Antarctica

Once more some mammoths

An experimental portrait of Tarbosaurus bataar. Here I tried brushes imitating oil paint and charcoal. Tarbosaurus is a close relative of T. rex, known mainly from specimens of different ages from the Maastrichtian of Mongolia. Done in Adobe Photoshop. #paleoart #dinosaur

Reconstruction of noasaurid Kiyacursor longipes from the Early Cretaceous of the Kemerovo region (Russia). It's known by partial postcranial skeleton including articulated hindlimbs. Kiyacursor had cursorial adaptations and could run quickly from predators. #paleoart