For #DinosaurDay I thought I'd post a commission I did last year of the #Jurassic Troodontid Hesperornithoides, shown about to swallow an unfortunate mammal it has captured called Glirodon grandis. Really proud of how the feathers turned out with this one #paleoart #digitalart #dinosaur #sciart

In recognition of #WorldOtterDay I touched up a skull restoration from a few years ago of the #extinct #otter Enhydritherium terranovae. This species lived during the late #Miocene across southern North America from coast to coast. It was the size of the modern Giant Otter #paleoart #paleontology

#FossilFriday I mostly draw mammals, but I've always been fascinated by marine reptiles. So after the new paper by @tyrantlzrdqueen.bsky.social et al announced a new species of #Tylosaurus, T. rex, I had to take a crack at a reconstruction! Fun to try something different..

#fossilfriday although the end of the symphysis is damaged it clearly has a bilobed tuskless end and a huge anterior mental foramen. These features are shared with Megabelodon lulli, leading many (including me) to think T.phippsi is a junior synonym of M. lulli.

#FossilFriday: The cave hyena, Crocuta crocuta spelaea, on display at the National Museum, Prague.

In the brain of a sabertooth: First neuroanatomical description and ethological insights on Megantereon cultridens (Felidae, Machairodontinae). Study by Ilaria Meli et al.: anatomypubs.onlinelibrary.wiley.com/doi/10.1002/... Artwork by Simone Zoccante #FossilFriday

Giant sea monsters are trending with the newly described Cretaceous "kraken"*. So for #FossilFriday, a better known super predator named after myth: Livyatan melvillei! A true terror of the Miocene oceans, I was thrilled to see original fossils and a skull cast of this killer sperm whale in Lima.

🧵 (1/3) What makes South American Ungulates so unique?🦏🍃 #FossilFriday Check out our new comprehensive combined-evidence #phylogeny of #Toxodontidae!!! #Paleontology #Evolution #Fossils #Argentina #CONICET doi.org/10.1111/cla....

#Fossilfriday: The hyaenid Dinocrocuta, from the Late Miocene of Eurasia and Africa. Dinocrocuta was much larger than living hyaenas, around 200 kg (440 pounds.)

#fossilfriday And one more in side view.

#fossilFriday A mastodon at the Huston Museum of Natural Science tosses a paleo-hunter into the air with a quick twist of its tusks.

The bulky herbivore, Barylambda faberi, a pantodont from the Paleocene. #FossilFriday ⚒️🧪

#FossilFriday: The Pacific mastodon, Mammut pacificus, known from California and Idaho. This species was described in 2019. This is the second of two species of Mammut from North America, the other being Mammut americanum.

#FossilFriday: The nimravid Dinictus, known from the Late Eocene to Early Oligocene of North America, about 35-29 million years ago.

#FossilFriday: The three-toed horse Miohippus, from the John Day Fossil Beds National Monument in Oregon.

A perfect way to start off the year of the horse. Also, a nice preview for a reconstruction I'm working on! 🐎

happy #fossilfriday! bonus: this is chasmaporthetes, a hyena from the pliocene and pleistocene of eurasia, north america, and africa. it was a long-legged, cursorial predator akin to modern canids, and c. ossifragus is the only hyena known from north america (art by julius csotonyi)

…a horse rears in alarm as dire wolves chase a pronghorn past it, and Eremotherium pulls down a branch of what I’m assuming are Osage oranges. #FossilFriday

To celebrate the release of Prehistoric Planet: Ice Age, I'm skipping ahead to some photos of Smilodon fatalis for #FossilFriday, left from the Royal Ontario Museum, right from La Brea Tar Pits Museum. These saber-toothed cats were at least as big as lions, but much heavier. #PaleorenjiPhoto (2019)

Prehistoric Planet release bonus: a couple photos of Megaloceros giganteus, the largest deer ever to live, from the Pleistocene epoch. Photographed at the National History Museum in London in 2018. #FossilFriday #PaleorenjiPhoto

Not sure why the sight of an Arctotherium basking in the morning sun brings such joy to my heart, but it does! #PrehistoricPlanetIceAge

#FossilFriday 🧪⚒️

happy #fossilfriday! this is euthecodon, a long-snouted crocodile that lived between the miocene and pleistocene of africa. despite a gharial-like appearance, euthecodon was a true crocodile aka a member of crocodylidae (art by joschua knuppe)

#FossilFriday The walking sea cow Pezosiren at the National Museum of Natural History

Everyone's talking about nanotyrannus. But we have to wrap up #gomphtober2025 . Finishing things off is Eubelodon. On display at the University of Nebraska State Museum, Lincoln. #fossilfriday #universityofnebraskastatemuseum #universityofnebraskalincoln #prehistoricnebraska #fossil #elephant

A side-on snapshot of the skull of Megacerops, a #brontothere (‘thunder beast’) from North America for this #FossilFriday. Sporting large bulbous horns, these large, ancient mammals looked a bit like rhinos 🦏 but are actually more closely related to horses 🐎. #Paleontology #Science #Cenozoic 🧵1/

#FossilFriday Megatherium americanum Cuvier, 1796. Museo Argentino de La Plata 🧪⚒️ #PrehistoricPlanetIceAge paleonerdish.wordpress.com/2015/03/30/t...

Second installment of #gomphtober2025 skeleton of gomphotherium from Mt. Diablo, California. Was on display at UC Berkeley, don't know if it still is. #fossilfriday #prehistoriccalifornia #gomphotherium #cenozoic #miocene #elephant #fossil

This adorable oreodont family has had quite a journey. Paul Miller made this mount for the U of Chicago Walker Museum in 1924. They were transferred to the Field when the Walker shut down, then loaned to the BYU museum for 60 years. The oreodonts are now back in Chicago. #FossilFriday

#fossilfriday skull and lower jaw of the fox-like dog Archaeocyon. On display at the Ben Reifel Visitor Center, Badlands National Park, South Dakota. #badlandsnationalpark #badlands #dog #doge #doggo #oligocene #fossil #paleontology

happy #fossilfriday! bonus: this is nihohae, a waipatiid dolphin from the oligocene of new zealand. the 2023 paper describing the taxon suggests that nihohae hunted and fed in a manner analogous to sawsharks, preying predominantly on soft-bodied cephalopods such as squid (art by shunovachrono)

The Pleistocene camel Camelops hesternus once lived on the cool, windy plains of Alberta during the Ice Age where it lived alongside bison, mammoths, horses, and other such creatures #FossilFriday #camel #Alberta #IceAge #yeg

#fossilfriday skull of the sheep-sized oreodont Mesoreodon. On display in the Thomas Condon Paleontology Center, John Day Fossil Beds National Monument, Oregon #johndayfossilbedsnationalmonument #johndayfossilbeds #nationalmonument #prehistoricoregon #oregon #cenozoic #oligocene #paleontology

#FossilFriday: Stephanorhinus, a two horned rhinoceros from the Pleistocene of Austria. A 2021 genetic study suggested its closest living relative is the Sumatran rhinoceros.

A close up of the skull and impressive teeth of the sabre-toothed cat: Smilodon fatalis. #FossilFriday ⚒️🧪

#FossilFriday. here kitty kitty....sort of!

#fossilfriday Brontothere skulls from the Eocene of the White River Badlands on display at the @alfpaleo.bsky.social museum in Claremont, CA. One of these (suspect it's the middle one) was collected by a teenage Malcolm McKenna before his career in vert paleo took off!

For #internationalcatday and #FossilFriday, the saber-toothed cat, Smilodon.

#FossilFriday Megacerops robustus, 38-34 mya, #SouthDakota, at the Yale Peabody Museum

The Mammoth at the Royal Alberta Museum. #fossilfriday

The horrifying humerus of the giant short-faced bear for #FossilFriday. This specimen from Nebraska makes a large adult black bear humerus look miniscule. Not to be tangled with. 🧪⚒️🦕 @unsmmorrillhall.bsky.social

The koala lemur, Megaladapis edwardsi, found in Madagascar, which went extinct due to early human activity. #FossilFriday⚒️🧪

On #fossilfriday, a complete Mastodon skeleton in the Museum of Appalachia in Saltville, Virginia. This fellow was recovered from the salt marshes in the same town, a remnant from the Pleistocene era. #dinosaurs #mammals #mastodon #skeleton #paleontology #saltvilleVA #museums #bluemoonistic

Did a little artwork on a rainy Saturday afternoon! This is a WIP head reconstruction of a #Jaguar. The same process I use when restoring extinct animals works just as well for modern ones. Texture and other detail work coming soon

#fossilfriday The incredible skull of Eosqualodon langewieschei from the upper Oligocene of NW Germany, recently re-described by Margot Nelson et al. @maruchelys.bsky.social #whaleontology Read the paper here: www.tandfonline.com/doi/abs/10.1...

Skull of Proailurus lemanensis, a small fossil cat that was first found in France. #FossilFriday ⚒️🧪

Megaloceros giganteus, photographed at the Field Museum in 2014. Known as the Irish deer (or it's misnomer Irish elk), it was one of the largest deer to ever exist, with a head of antlers spanning nearly twelve feet. #FossilFriday #paleontology #PaleorenjiPhoto

happy #fossilfriday! bonus: this is leithia, a giant dormouse from pleistocene malta and sicily. comparable in size to a rabbit or cat, leithia lived alongside the giant swan cygnus falconeri as well as the dwarf elephant palaeoloxodon falconeri (art by nixillustration)

An absolute unit of a gomphothere. Actually, I like that, the gomphothere unit. As in, I'll take 1 "gomphothere" of your finest lager please. #fossilfriday #dmns

Meet Paranthropus boisei—the heavy hitter of early hominin evolution. With huge molars, powerful jaw muscles, and massive cheekbones, this “Nutcracker Man” was built for a tough, gritty diet. Evolution doesn’t play around. 🦴 #PaleoPost #WOPA #FossilFriday #Paranthropus #HumanOrigins