Marcos K. Pinheiro / "Marcos Wyvern" (Marcosaurus)

Microraptor

An assortment of dinosaurs

Bird with background of dinosaurs skeletons

Fantastic creative palaeoart by a Japanese palaeoartist. Evoking traditional styles.

(Shane_Sandnan on IG)

Digital art of a desert scene, twisting sand dunes stretching into the distance. On the left, the sand is cast in warm gold and orange tones, and on the right they are set in dark purple and blue shadows. Grains of sand can be seen whipped away on the wind from the ridge of the dunes. The sky is soft orange and fades to slightly more purple tones higher up. In the background is a sun and moon circling around a center point, stars stretched out as if a time lapse, delicate celestial patterns behind them and leaving trails of light in their wake. At the center point is another design connecting the sun and moon.

#ArtAdventCalendar 3 - Endless cycle (2021)
#art #celestial #desert

A ziphodont crocodylomorph from Villaggio del Pescatore Lagerstätte (Campanian, Italy) Abstract. Crocodylomorph diversity in Europe peaked during the Late Cretaceous, with eusuchians dominating the fossil record. However, ziphodont forms, inc

A ziphodont crocodylomorph from Villaggio del Pescatore Lagerstätte (Campanian, Italy) url: academic.oup.com/zoolinnean/a...

Williams, A.R., & Harris, J.D. (2025). Cervical ligament systems in sauropod dinosaurs: what support is there? Vertebrate Anatomy Morphology Palaeontology 13: 81–97. journals.library.ualberta.ca/vamp/index.p...

New skull of Megantereon inexpectatus (Carnivora: Machairodontinae) and its implications on evolution of Megantereon in North China - Swiss Journal of Palaeontology Megantereon is an iconic sabertoothed cat known from the Quaternary deposits of the Old World, being its evolutionary scenario and phylogenetic relationships hotly debated the last decades. Several au...

Guo, D., Madurell‑Malapeira, J., Xie, K. et al. New skull of Megantereon inexpectatus (Carnivora: Machairodontinae) and its implications on evolution of Megantereon in North China. Swiss J Palaeontol 144, 73 (2025). doi.org/10.1186/s133...

Wow... The Kem Kem Group has more vertebrate taxa described and named than I thought. Each Moroccan taxon is unique. I'm looking forward to the next ones, Jay. Love your artworks bringing them to life. ^^

Deinotherium

Dinocember - Day 7 - Deinotherium
#dinocember2025

Size comparison between Araripesuchus, Xericeps, Siroccopteryx, Rebbachisaurus, an indeterminate leptocleidid, Galianemys, Laganosuchus, Neoceratodus, an indeterminate iguanodontian, Hamadasuchus, Alanqa, Spinosaurus, an indeterminate titanosaur, Anhanguera, Ornithocheirus, Nicorhynchus, Aidachar, Elosuchus, Afrotapejara, Carcharodontosaurus, Onchopristis, Bawitius, Apatorhamphus, Deltadromeus, Leptostomia, an indeterminate abelisaur, an indeterminate noasaurid, an indeterminate dromaeosaur, Concavotectum, Axelrodichthys and myself.

We are rapidly approaching the finish line!

Green and grey giant lungfish.

Joining the ranks of the Kem Kem lobe-finned fish is the giant 3m-long lungfish, Neoceratodus! This genus is still represented today by a single species, the Queensland lungfish, which gets to a substantial 1.5m long.

Size comparison below ⬇️

#sciart #paleoart

YouTube video by SpinoDude 🦖 Touring CREATIVE BEAST STUDIO with David Silva!

youtu.be/PuzWzF7uIrs?...

Flame's face in detail showing nasal valve visible.

Flame's face in detail showing nasal valve mostly stowed, so nostril open.

We featured these in the Prehistoric Planet mosasaurs. But an interesting point is that they're even present in desert-dwelling animals, like bearded dragons. Interesting to wonder how widespread they were in extinct reptiles. #lizards #reptiles

Head of Flame the bearded dragon.

Flame the dragon, in a sink.

A little known thing about #lizards that I've not seen written about in detail concerns NOSTRIL VALVES. These are deployed when lizards submerge their heads, either in swimming or drinking. Here's Flame with valve not deployed, and deployed. Cont...

Landscape format sketchbook open to its full stretch. Double page full of drawings of puffins: on the left with outstretched wings, in the centre, over both pages - a puffin in profile with food catch hanging from its beak, top right a group of birds in a row, beneath it a bird in flight, bottom corner - puffin floating on the sea. All drawn with various ballpoint / biro pens. These are displayed above the sketchbook alongside a mug of tea. Following the theme it is printed with puffins.

Dec 7 #artadventcalendar
Another 'forgotten' thing from a random sketchbook.
Puffins drawn in an online class given by @emmacavill.bsky.social @artistinresidence.co

#drawing #biro #pen #ballpoint #sketchbook #artyear #birdart #puffins

Aquarellbild eines gefrorenen Sees in der Abendstimmung

Hatte heute endlich mal wieder Zeit, was Größeres zu malen

230x310mm
300g/m² Baumwollpapier
Lichtechte Farben

Falls jemand Interesse hat, bevor ich es heut auf Etsy stelle ➡️ schreib mir eine DM

Noch geht sich der Versand für Weihnachten aus

#art #kleineKunstklasse #wattiskunst #artadventcalendar

Digital painting of a wisent (European bison) in profile view, facing left. The background is a textured gradient from dark blue on the borders of the piece to a lighter blue in the center, with some splotches of orange and light beige, especially around the animal. Only the front half of the animal is shown, with the rest of it out of the frame. #paleoart 🐡

I've decided to make a series of paintings of conservation success stories, starting with this here żubr/ wisent/ European bison.
They were almost driven to extinction in the early XX century, and the current population is descended from about 17 animals, thanks to the efforts of prof. Jan Sztolcman

Aerial view of the Acropolis of Athens, situated on a rocky hill overlooking the city. The Parthenon, with its partially preserved columns and ruins, stands at the center. Other classical structures, including the Erechtheion and the Propylaea, are visible nearby. Below the Acropolis, the Odeon of Herodes Atticus, a semicircular stone theater, is nestled into the hillside. The surrounding area is a mix of greenery and densely packed modern buildings, showing the contrast between ancient history and contemporary Athens.

For #AncientSiteSunday this fabulous aerial photo of the Acropolis at #Athens - a site I would love to be right now!

📷 Christos Kapoulas

#Greece

🏺

An oil painting of a female Northern Cardinal, sitting on a lichen-encrusted branch. She's soft yellow-brown with red accents on her tail, wings, crest, and beak, and with a black mask. Her mood is fluffed up and relaxed, looking forward. The background is dark with sparkles of golden light. The artist's watermark reads: copyright Jennifer Miller "Nambroth" featherdust dot com.

"Everbright On Dark Days" Female Northern Cardinal, 10"x8" Oil on panel

The days are dark and short, and my mood seems to follow. But sometimes a thin ray of sun cuts through for a moment, and lights up the things I love, reminding me of how wonderful and beautiful they are, and it keeps me going

winter evening sketch

A *GREAT* new sauropod cervical ligament system paper just dropped.
🧵
Gonna start with the paper:
Williams, A.R., & Harris, J.D. (2025). Cervical ligament systems in sauropod dinosaurs: what support is there? Vertebrate Anatomy Morphology Palaeontology 13: 81–97. doi.org/10.18435/vam...

YouTube video by Your Dinosaurs Are Wrong Shoulder Holder Swoop Hoop

youtube.com/shorts/cgoMy...

Early gigantic lamniform marks the onset of mega-body size in modern shark evolution - Communications Biology The earliest appearance of mega-body size in sharks is pushed back by 15 million years with the discovery of new fossils from Northern Australia. Using a comprehensive dataset of living sharks to esti...

www.nature.com/articles/s42...

Giant Ancient Shark Discovered in Australia Stuns Scientists Scientists have uncovered evidence of a colossal shark that lived off northern Australia about 115 million years ago, revealing that modern shark lineages grew to immense sizes far earlier than expect...

scitechdaily.com/giant-ancien...

Erythrosuchus and two Cynognathus

a Camelops walks past a fairly newly formed tarpit nestled amongst thick vegetation Camelops is an extinct kind of camel that lived during the last ice age, unlike modern camels it had quite a slender snout and was slightly taller, it's unknown if it had a hump or not, however, we know that if it did have a hump it would only have one rather than two thanks to the shape of its back

a Daemonosaurus slowly walks along the shallow muddy banks of a lake in the morning, it's slow movements are calculated as to not alert any nearby phytosaurs Daemonosaurus is a Triassic dinosaur who's position in the dinosaur family tree is still debated, some consider it a basal theropod, while others consider it a non-theropod saurischian related to dinosaurs like Hererrasaurus. it's a small dinosaur with a short face and large teeth, although, it's only known from a single skull, some neck material, and a few ribs

three Panderodus kick up fine sediment by the shoreline of the ocean at night, they're illuminated from above by a light offscreen and outside of the water Panderodus is an unusual type of conodont (extinct jawless fish related to lampreys) which is flat like a stingray unlike other conodonts which are more eel-like. it's most well known for it's large conodont elements (mineralised tooth-like structures) which are simple and very proportionally large, some species of Panderodus have grooves on their conodont elements, which some scientists have proposed were for delivering venom, this would make conodonts the earliest venomous vertebrates

a Eustreptospondylus swims along the surface of the water during the afternoon, most likely travelling to a nearby island. the camera is at the surface of the water with a small portion above showing the animal's head, while most of the camera is under the water where the body is. bubbles escape from the dinosaur's feathers as a wave submerges its body with only its head left above the water. the animal is swimming using a mix of its tail, legs, and arms. Eustreptospondylus is a theropod dinosaur known from Jurassic England when it was a series of scattered islands. Eustreptospondylus is only known from one juvenile specimen, the juvenile is around a meter tall at the hip. none of Eustreptospondylus' closest relatives preserve a nasal bone, so one scientists suspects that they could have had nasal crests akin to dinosaurs like Ceratosaurus or Guanlong, this isn't known for sure but i have followed this interpretation in my reconstruction of the animal.

results of this week's #Paleostream flocking!!!

this week we sketched Camelops, Daemonosaurus, Panderodus, and Eustreptospondylus

#sciart #paleoart

Stunning footage from earlier today, when the new Kilauea eruption covered the USGS Webcam 3, which is situated in the Halemaʻumaʻu crater near the southern rim of the much larger Kilauea caldera.

This *isn't* what the people of Pompeii saw.

But it's not very far off.

Plastic can be programmed to have a lifespan of days, months or years Inspired by natural polymers like DNA, chemists have devised a way to engineer plastic so it breaks down when it is no longer needed, rather than polluting the environment

Inspired by natural polymers like DNA, chemists have devised a way to engineer plastic so it breaks down when it is no longer needed, rather than polluting the environment

Reinaldo José Lopes: Brasileiros estudam dentes para desvendar ancestrais misteriosos
Equipe da USP analisou dentição de hominínios, da Geórgia, cuja classificação ainda é incerta
@reinaldojlopes.bsky.social
archive.ph/8rM7R

Heartbreaking. The University of Nebraska will terminate its entire Earth science department.

One of the country's most successful and respected geology & climate programs: gone.

When ideologues & politicians are threatened by the very act of studying climate change, I wonder: who of us is next?

サメを描くのは一旦終わり！！

Digital art of Claude, a white alligator, surrounded by pink roses. His mouth is open and he looks pleased.

A tribute to Claude, my favorite celebrity alligator. 😭
#Art #SciArt