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fossilflex.bsky.social
Fossil Flex
@fossilflex.bsky.social
46 followers 140 following 8 posts
Aspiring paleontologist. Mostly paleoart, scientific articles and spooky stuff. Pfp by @poroshya on Twitter
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Reposted by Fossil Flex
serpenillus.bsky.social
Quick sketch of Zavacephale rinpoche, a new pachycephalosaur from Early Cretaceous Asia

#paleoart #dinosaur
Sketch of Zavacephale running (bottom) and detail of the head
September 18, 2025 at 1:35 PM
Reposted by Fossil Flex
arctomet.bsky.social
Pasinetti, G. et al. 2025. The macrofossil Lydonia jiggamintia gen. et sp. nov. from the Ediacaran of Newfoundland (Canada): From pseudofossil to metazoan-grade organism. Palaeontologia Electronica, 28(3):a39.

palaeo-electronica.org/content/2025...
doi.org
September 16, 2025 at 6:38 PM
Reposted by Fossil Flex
literallymiguel.bsky.social
Diandongosuchus fuyuanensis

The most basal known phytosaur

kinda funny how it was mistaken for a poposauroid in its original description (Qianosuchus is mentioned about 58 times in there😭) when every single one of its bones is literally jsut a phytosaur's. It even came with a-
September 14, 2025 at 4:41 AM
Reposted by Fossil Flex
triplchii.bsky.social
a neutron star in the year 120 trillion; in this future neutron stars have all cooled to only a few degrees above background temperatures, but they are still incredibly dense. these objects are very smooth and shiny, with splotches of dust from trillions of years of impacts

#b3d
Render of a cooled-off neutron star against a backdrop of a few dim stars and dim red clouds of gas and stuff. The star's mass bends the light around it like you'd see with a black hole. Exposure has been boosted a lot in this render to make anything visible. Render of the neutron star itself with no lensing effect and a lamp shining on it; it's surface is dark and reflective, with scratches and marks dotting its surface. The star exhibits a kind of irridencense like you'd see with an opal.
December 17, 2024 at 9:24 PM
Reposted by Fossil Flex
triplchii.bsky.social
assortment of brown dwarfs at various stages of cooling (explanation in the alt text)

#art #b3d
Top left: A very hot (~2000 K) brown dwarf, glowing bright orange/yellow from blackbody radiation. Its atmosphere is full of all sorts of metals and hydrides and so on. Top middle: Below ~1100 K methane is permitted to form in a brown dwarf's atmosphere. Methane appears blue, combined with the dull glow from blackbody radiation this makes the dwarf appear that familiar magenta. Top right: <800 K, now that it is no longer glowing the brown dwarf turns blue from methane absorption - assuming there's no haze. Middle left: From 700 K - 250 K it's possible a haze of sulphur can develop that turns the dwarf tan or beige. Middle: At 350 K - 170 K clouds of water can form that turn the dwarf white, possibly with a yellow or brown tinge depending on how much haze is present. Middle right: From 180 K - 80 K clouds of ammonia and ammonium hydrosulphide can appear, turning the dwarf orange or creamish. Bottom left: Back to purely methane absorption, which again turns the dwarf blue/cyan. Similar to Uranus and Neptune. Bottom middle: At ~20 K it gets so cold even the methane freezes out, leaving only hydrogen and helium behind. The dwarf appears white due to Rayleigh scattering, which is usually most effective for blue light but in this case light keeps travelling deeper into the object until even the longer wavelengths are reflected back out. Bottom right: ≲14 K the hydrogen itself freezes, turning the brown dwarf into a huge ball of solid hydrogen ice. A highly compressed atmosphere of helium remains. The brown dwarf retains its high surface gravity of hundreds of gees, combined with the cold temperature this causes the atmosphere to have a scale height of only a few meters. Eventually, by ~0.8 K, even the helium will freeze up too. The coldest types shown here likely do not exist in nature yet, but in the far future as things cool down they could come about.
June 8, 2025 at 7:12 PM
Reposted by Fossil Flex
triplchii.bsky.social
the interstellar vehicle Thousand Blossoming Flowers in high orbit around Proxima Centauri g, sometime around 2680

#art
Illustration depicting a scene in space. In the background is a planet with a moddled beige-brown texture. In the foreground is a very long and spindly spacecraft. The lighting is harsh, shadows blend in with the black background of space.
June 23, 2025 at 11:24 PM
Reposted by Fossil Flex
triplchii.bsky.social
Evening on a snowy unsuccessfully terraformed Mars
Digital illustration depicting a girl with red hair and yellow eyes dressed in an orange winter coat and black gloves. She's wearing a transparent mask hooked up to an oxygen supply on her back. The scenery depicts a bleak snowy landscape, dotted with orange rocks and a few signs of footprints. In the background a snowy hill can be seen, and a large rocky cliff. The very top of the cliff is a stark orange as it barely catches the last light from the setting sun. Some distant lights resting against the cliffside can be spotted. The sky is a mix of oranges, yellows, and blues while a few faint clouds reflect the orange sunlight.
August 14, 2025 at 7:55 PM
Reposted by Fossil Flex
vyhrart.bsky.social
#SciArtSeptember #sciart #paleoart
Day 13 Bottleneck
Another one from years ago. A Ceratosaurus in mixed shade.
The Morrison was filled with drastic and severe population rises and declines.
September 13, 2025 at 2:43 PM
Reposted by Fossil Flex
dreambob.bsky.social
13/09/2025
Wollemia (+Savannasaurus) + Bottleneck

{ #paleoart + #sciart + #sciartseptember }
3/09/2025 Wollemia (+Savannasaurus) + Bottleneck woooo another plant art!
September 13, 2025 at 12:13 PM
Reposted by Fossil Flex
lizlagomorph.bsky.social
#SciArtSeptember Day 13: Bottleneck
Wisent herds have been reintroduced to Eurasia and now number in the thousands. All living animals are descended from 12 individuals.
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#SciArt #wisent #wildlife #conservation #sketchbook
A mixed media drawing of a wisent and her nursing calf. The wisent are both shown in shades of brown, with blue extremities.
September 13, 2025 at 3:35 PM
Reposted by Fossil Flex
montanoceratops.bsky.social
Here's my skeletal of Medusaceratops lokii, a Albertaceratopsini Centrosaurine from the Judith River formation of Montana. This taxon is known from a large bonebed containing many specimens. thanks to both @lordtrilobite.bsky.social and @andyfarke.bsky.social for helping the restoration! scalebar 1m
A black and white line drawing showing the skull bones of a horned dinosaur
September 14, 2025 at 1:13 AM
Reposted by Fossil Flex
toughsf.bsky.social
Molecular quantum wakes, generated by femtosecond laser pulses, can efficiently clear out a channel through fog/clouds of any water droplets, allowing a 'main beam' to pass through unimpeded:
arxiv.org/pdf/2004.04056
It could be how large lasers bypass weather effects.
September 14, 2025 at 3:52 AM
Reposted by Fossil Flex
thepalass.bsky.social
Morphometric analysis of the conodont Chiosella timorensis from the early Anisian of Romania & China & its significance for the definition of the Olenekian–Anisian Boundary onlinelibrary.wiley.com/doi/10.1111/... @datadryad.bsky.social
At the top are two maps of the study areas with red stars showing the positions of the Desli Caira section in North Dobrogea, Romania (left) and Mingtang and Guandao in the Nanpanjiang Basin of South China (on the right). In the bottom left corner, a scatter plot showing the relationship between length (horizontal axis) and height (vertical axis of Chiosella specimens(in microns). Chiosella timorensis data points are orange triangles and Chiosella gondolelloides data points are blue circles. The plots follow a general positive trend with more blue circles in the lower part and more orange circles in the upper part. In the lower right corner are two representative specimens: the smaller on the left is Chiosella gondolelloides(MT452209); the larger one of the right is Chiosella timorensis (MT452203), both housed at the State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences in Wuhan. Scale bar near the bottom is 200 microns.
September 10, 2025 at 7:46 PM
Reposted by Fossil Flex
literallymiguel.bsky.social
Dicynodont's cranial anatomy is heeeeeeell

thanks to @cascoclauda.bsky.social for opining and chatting with me about these guys
September 11, 2025 at 4:56 AM
Reposted by Fossil Flex
the-episiarch.bsky.social
Salinella salve - an #invertebrate cryptid, lost to time.
For more details about this strange organism, see:
www.deviantart.com/the-episiarc...
#SciArt 🧪
An illustration of a mysterious creature named Salinella salve, showing its body wall composed of a single layer of cells, and dense ciliates at its anterior and posterior
August 31, 2025 at 2:06 PM
Reposted by Fossil Flex
tappingsnurtle.bsky.social
Spicomellus afer (2025)

This one’s a panorama so you guys might wanna open this one up

#paleoart #paleontology #sciart #spicomellus #dinosaurs #ankylosauria
A pair of Spicomellus, a recently described basal ankylosaur, meet up on a beach in Jurassic Morocco. One is shaded by a rock face, while the other lies down, soaking up the sun.
September 10, 2025 at 8:58 AM
Reposted by Fossil Flex
bosssaurus.bsky.social
"I took this photo while wildfires were raging in rural Romania."

#paleoart #pterosaur
September 11, 2025 at 3:10 PM
Reposted by Fossil Flex
cambencreatives.bsky.social
Helicoprion is a large eugeneodont shark, most famous for its buzzsaw-like jaw configuration. Depicted here hunting Mooreoceras.

This painting is commissioned by the NPS and highlights fossil specimens known from Guadalupe Mountains Park, TX
September 11, 2025 at 6:57 PM
Reposted by Fossil Flex
maijakarala.bsky.social
#SciArtSeptember 10 - Tawny

Not all gazelles live in Africa! Goitered gazelle is native to a vast area from Turkey, Georgia and Azerbaijan through central Asia all the way to northwestern China and Mongolia.

Though widespread, its' population is in steep decline due to poaching and habitat loss.
Illustration of a female goitered gazelle, a small light brown antelope-like animal, drawn after photos taken in Korkeasaari Zoo, Helsinki. It's standing in front of a round background featuring a messy painterly depiction of its' natural habitat: brown earth, blue distant hills and grey sky.
September 10, 2025 at 4:03 PM
Reposted by Fossil Flex
aberrantologist.bsky.social
Guizhouichthyosaurus tangae #Ichthyursday week 9
September 12, 2025 at 12:59 AM
Reposted by Fossil Flex
kiabugboy.bsky.social
First snail has hopped onto the crinoid
#paleoart #SciArt #platyceras
Closeup of a Platyceras snail with a loosely coiled shell like the top of a witch's hat, attached to a Macrocrinus calyx, a sea lily with a round central cup that ends in a long tapering tube at the top, and with feathery arms radiating out of the cup
September 11, 2025 at 6:20 PM
Reposted by Fossil Flex
nhm.org
To celebrate a momentous 10 Years of #DinoFest, we’re looking back at a decade of discoveries from the Mesozoic—the period from about 252 to 66 million years ago, when dinosaurs evolved and then came to rule the planet: go.nhm.org/dinofest10

🦖 Will you be joining us this Sunday, September 14?
Reconstruction of Navaornis hestiae in its 80 million-year-old environment Copyright owned by Julia d’Oliveira. Credit: J. d’Oliveira. Email: julia_d.oliveira@hotmail.com The giant ichthyosaur Cymbospondylus youngorum Illustration by Stephanie Abramowicz
September 11, 2025 at 5:59 PM
Reposted by Fossil Flex
ferrutxoart.bsky.social
Gideonmantellia, although it looks like a strange chicken here, is one of the most basal ornithopods known. A strange and little-known animal whose remains have been discovered in Spain. I hope you like the reconstruction!
September 11, 2025 at 8:45 PM
Reposted by Fossil Flex
crouxevo.bsky.social
Hybridization and introgression are major evolutionary processes. Since the 1940s, the prevailing view has been that they shape plants far more than animals. In our new study (www.science.org/doi/10.1126/...
), we find the opposite: animals exchange genes more, and for longer, than plants
September 12, 2025 at 7:55 AM
Reposted by Fossil Flex
palaeojules.bsky.social
I re-illustrated #Anchiornis again, and it looks quite a bit different from usual!!! This still matches the known data for this #dinosaur, but I really wanted to avoid it looking copy-pasted this time. I've given a full description of it on my Patreon.
#FossilFriday #paleoart #paleontology #sciart
A square image with the head, neck body and wing of anchiornis visible. Is is a long thick necked bird with a grey body and ginger patches on its head and upper arm. The wing is made of many feather layers which are white with black tips.
September 12, 2025 at 2:17 PM