Somewhere in Oregon during the late Oligocene, a subadult cub Mesocyon coryphaeus intently watches his mother chew on a bone, hoping to snatch it from her at the first opportunity. Inspired by the recently published near-complete skeleton of this early, mustelid-like dog. #paleoart #sciart #mammal

Paranthropus boisei male. Much is often made with the huge molars and massive jaw musculature to run em, but equally facinating to me is the surprisingly small incisors. with tightly packed small incisors and small canines this would have likely made mouth look relatively small/narrow. #sciart

A Paranthropus boisei male stares intently into your eyes, drawing a connection between the contours of his face and yours, remarking the hairlessness of his skin and yours and wonders… “Have I seen them before?” #sciart

Caquetios of the Plains of Venezuela (private commission) 🧵⬇️ (1/10)

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

On a scale of 1 - 10, how evil would it be to make several lineages of Enantiornithean birds diversify throughout the Cenozoic on Kerguelen, only to all be wiped out (plus or minus one small survivor) by cats and rats in the 1700s? #specevo #worldbuilding

Rough-sketched idea of how these non-mammalian cynodonts may acquire a trunk-lip, through increasingly specialized browsing with a hardened, then lengthened upper lip that gets increasingly grippy and muscular. A bit of #specevo for my personal Kerguelen project. #worldbuilding #illustration

Sphinx is strictly applied to a group of cat-like therocephalians found on Kaimere's Permian Islands. The bast is a small member that has been domesticated for companionship and pest control. Cheers to @shinygander.bsky.social for the thumbnail! Link to episode: www.youtube.com/watch?v=Fo3X...

New echidna paper There are 5 subspecies of short-beaked echidnas. They look different but some of the differences between them, like reproductive behaviour, are so dramatic that I thought they may be different species. But previous genetic studies suggested that the subspecies were not real.

I saw a very special bee a few hours ago, the Southern Plains Bumblebee (Bombus fraternus). This #grassland dweller has declined sharply in recent times as necessary habitat and food has vanished, so it was a treat to watch one slowly forage on these tallow tree flowers for a while. #bees #wildlife

Lemuria Phase 3 has officially started! Over the next months people on Discord will be able to submit ideas for animals and plants that could live on this hypothetical landmass during the Pleistocene. 🧵

WOW. This unfinished diorama hall is retrofitted into a meta-exhibit about museum dioramas—how they’re made, their history, and their shortcomings. Do not miss!!!

A lineup of the big cats of Sukaya, the Africa-equivalent continent in the world of Tyrannoc (a spec-evo and worldbuilding project made by a friend of mine). Three are extant African big cats, the others are based on extinct sabertooths from the Pliocene, and Pleistocene. #specevo #art #Tyrannoc

Though feral dragons are primarily derived from the now-extinct mountain wyvern, the dragonriders are said to have incorporated both green and common wyverns into their domesticated stock for a range of traits.

something is occuring... youtu.be/6t6IPDjzglk #Paleostream #LemuriaChallenge #LemuriaChallenge3

There's still time to apply! University of Nebraska State Museum is searching for a Collection Manager for one of the most important Paleontology Collections in North America. Come join us and work with nice people and incredible fossils. Please apply! employment.unl.edu/postings/100...

After more than 10.000 years since wild European elephants have become exterminated an upcoming project in Portugal intends to relase formerly captive elephants into a sanctuary. Whatever one may think about it, it will become an incredible ecological experiment. www.pangeatrust.org/about-us/

Finally finished that painting of Rice’s Whale (aka the Gulf of Mexico Whale) and added a baby whale shark too because yes. Read further below 👇

My submission for Sawyer Lee’s #codexcontest, wherein much of the bones belong to a titanic terrestrial cetacean (descended from something Ambulocetid/Protocetid-like that went back to land). This beast would have been an all-consuming omnivorous browser, living in dense forests and swamps. #specevo

Palaeoloxodon recki/atavus #Sciart

Megistotherium osteothlastes doodle, the very first procreate test. Thanks to @villesinkkonen.bsky.social for create these wonderful fur brusheset, so cool.

First two sketches from tonight’s flocking #Paleostream, the strange marine mammal Desmostylus and the early, semi-sprawled elephant-cousin Numidotherium. #sciart #paleoart #cenozoic #mammals

They're just gorgeous 🥹 Poked at a clump of grass this afternoon and there were two of these rare Tutelina lasses waving at each other. I love this time of year. #EmotionalSupportSpood

Meet Palaeocastor. New clip on YouTube! youtu.be/-hUslatBqnY

So, a very cool study was just published that reclassified the bovids from the Camp Del Ninots fossil site as Parabos tigneresi instead of Alephis tigneresi, and thoroughly showcased its anatomy. (1/3) #paleontology #prehistory #mammals #pliocene #bovid journals.plos.org/plosone/arti...

A massive bull Konobelodon britti, the largest of beasts in late Miocene Florida, decrees with a misty jet from his trunk into the sunlit sky that all shall have a happy and safe pride month. #sciart #paleoart #miocene #pridemonth #florida

The Ka’he Kuln sphinx (top) and the bast (bottom) are two sphinx species we will meet in Pact of the Dragon. Sphinxes are a family of gomphocorn eborfeltherian therocephalians, and are small to top order carnivores in forested habitat of the Permian Islands.

Mammuthus meridionalis

In an open field in central Alabama during the late Pleistocene, two small bees in the genus Halictus are approached by the nose of a Paramylodon sloth. Are they H. poeyi, H. ligatus, or even the ancestor of both? No way to know without genetic testing! #bees #wildlife #entomology #sciart #paleoart

saturday tinkering. Prodeinotherium #sciart

🦇 Another awesome commission! This one features two Late Eocene Egyptian giant bats- Aegyptonycteris (with the fruit) and Witwatia. Both of them were around the size of the extant Spectral Bat (the largest living carnivorous bat). #paleoart

Much of the huge diversity of arthropods looks just like this, tons of little stinkers that are nearly identical at passing glance. All are unique species with their own natural history and irreplaceable ecology, it just takes a very observant mind to appreciate it. #entomology #science #insects

Some sketches made for the recent #Kaimere episode on Manticores, depicting a wild individual grooming itself with its wrist/ankle glands and a small caravan of domestic individuals returning home from a roo-hog hunt. #specevo #fantasy #cynodonts #permian

Curious what y’alls’ favorite living inverts are, anything from bugs to worms to ostracods. Multiple answers and debates are encouraged! #bugsky #invertebrates #entomology

Unsure if this is common knowledge or not, but the 'voice actor' for the Rhamphorhynchus in Walking With Dinosaurs were these guys. Razorbills. This one in the photo made that exact noise at a kittiwake that got too close.

Osorioichthys marginis, a ray-finned fish from the early Devonian from Belgium. In 1997, Taverne suggested that the genus could actually be from a less saline environment due to the abrasion seen on the specimen though I don't know the consensus on that. #sciart #paleoart

Failed pocket prehistory piece 1: Yuripopovina #Sciart #Paleoart

Yesterday I started on #paleostream a new series: #PocketPrehistry, in which I draw extinct animals in life size on postcard formats, meaning the animals can't be much longer than 15 cm max! Here the first 3 results Scalacurvichthys, Arcticodactylus, Iberomesornis with Eoalulavis, Kreischeria...

Curious what y’alls’ favorite living inverts are, anything from bugs to worms to ostracods. Multiple answers and debates are encouraged! #bugsky #invertebrates #entomology

I recently searched "goblin shark" on Instagram and was disgusted by the ubiquity of generative AI slop masquerading as actual footage of living goblin sharks. So here's a thread on how to spot the bullshit (examples below) #scicomm #sharks

Another good cockchafer fact: as a result of studies by 1800s entomologists, the cockchafer was one of the first animals to be discovered to have a strong preference towards homosexuality. A lot of Victorians found this very upsetting and refused to believe it.

A reconstruction based in a new mandible of the largest species of Stirtonia, S. tatacoensis, shows that this animal had already the robust and large mandible that distinguish these monkeys of the other relatives like spider monkeys, since that they are more specialized to eat leaves.

pattern recognition is wild. I can instantly tell a wasp mimic or discern a Viceroy/Monarch. I can ID most local earthworms by sight now, which is a little scary still opened the calculator app the last ten times I needed to set a timer in the clock app

Quick Deinotherium sketches, using their weird tusks for anchoring/resting the head while browsing and for intraspecific combat. Just exploring the possibilities of such a strangely shaped proboscidean. #sciart #paleoart #cenozoic #deinotherium

The fauna depicted are found in the Tule Springs Fossil Beds of Nevada. My previous illustrations feature on the park website. These are available for non-exclusive licensing.

This past weekend I revisited one of my first illustration jobs with the National Park Service.

Everything IS bigger in Texas... Introducing TYLOSAURUS REX–“TEX”. A monster animal, a monster paper, & a monster project that I am *so* excited to finally share with everyone after ~5 yrs. Huge thanks to my coauthors, Mike & Ron, & to Alderon Games for bringing our lad to life!! #FossilFriday

Tonight’s flocking-together #Paleostream was pretty mammal-heavy! We started with the cheetah-like sabertooth Yoshi, then the newly named Tylosaurus rex, then the little Jurassic furball Xianshou, and finally the strange hopping metatherian Argyrolagus. #cenozoic #mesozoic #paleoart #sciart #mammals

Laquintasaura venezuelae poster :3 (en español)