Henry Thomas 🦤🏳️‍🌈
@zhejiang0pterus.bsky.social
4.2K followers 660 following 700 posts
Paleontologist of sorts. MSc from Idaho State University. I study dicynodonts and pterosaurs, among other things. They/them
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Reposted by Henry Thomas 🦤🏳️‍🌈
patrickwyman.bsky.social
My favorite aspect of the Columbus legend is him getting rejected by the Portuguese gets spun as them not recognizing the genius of his idea. No - he went into a roomful of expert navigators and made basic math mistakes, they thought he was a moron, and they wouldn't fund his idea on that basis.
Reposted by Henry Thomas 🦤🏳️‍🌈
caxela.bsky.social
Helveticosaurus Lair
A gathering of marine reptiles (Helveticosaurus zollingeri) lie on exposed rocks within a sea cave. Foamy sea water rushes in from the left, swirling beneath their perch.
Reposted by Henry Thomas 🦤🏳️‍🌈
emilyart.bsky.social
#Paleoctober2025 day 11 and 12 paleoart sketches with the Precambrian microfossil Melanocyrillium and the Late Cretaceous antler-like crested pterosaur Nyctosaurus.

#Paleoctober #Paleoart #Melanocyrillium #Nyctosaurus
Close up of the microscopic vase-shaped cell. Portrait of a brown with white spots Nyctosaurus with its beak pointing downward to the right and its long crest only visible toward the base with the rest going off screen. A rocky shore is in the background.
Reposted by Henry Thomas 🦤🏳️‍🌈
arminreindl.bsky.social
#Croctober Day 12
Probably among the most obscure recently extinct crocodilians is Aldabrachampsus, a small (up to 2.5 meter) long animal of uncertain placement with a pair of rounded squamosal horns that lived on the Seychelles around 100.000 years ago
An illustratoin of Aldabrachampsus by paleoartist Manusuchus. The illustration shows the animal as similar to modern dwarf crocodiles with a short, blunt snout, interlocking teeth, large bulging eyes but different in having large, rounded horns above the ears.
Reposted by Henry Thomas 🦤🏳️‍🌈
restingdinoface.bsky.social
There are no carnivorous plants big enough to eat you, and there’s a good reason for that. Check out this piece I wrote for Smithsonian Magazine to learn why. 🌱
zhejiang0pterus.bsky.social
Some of you might not like the design of my SVP poster this year. But there is no other way
zhejiang0pterus.bsky.social
And that's not even getting into weird derived structures like the long scales of Longisquama and Mirasaura, Kulindadromeus's overlapping hexagon scales, the floppy back spikes of iguanas, etc. Tetrapod integument evolution is complex!
zhejiang0pterus.bsky.social
Then there's the numerous scale morphologies on fish, which may or may not all be homologous with each other.

The relationships between each of these are still rather poorly understood, and when looking at fossil tetrapods we should be careful with which one is which
zhejiang0pterus.bsky.social
We've got at least three types of scales in extant reptiles - dermal scales (maybe including croc scutes), epidermal scales of squamates, and bird foot scales, which are apparently secondarily derived from feathers. Plus the "scales" on rodent tails, pangolins, Castorocauda (some are hair-derived)
zhejiang0pterus.bsky.social
Random unprompted reminder that there are a whole bunch of different anatomical structures in tetrapods that are colloquially referred to as "scales", and the properties of one don't necessarily apply to all of them
Reposted by Henry Thomas 🦤🏳️‍🌈
sophiesaurus98.bsky.social
Thinking about some lesser known Steve Kirk dinosaur artwork today. His work shaped my childhood perception of prehistoric life more than any other artist and I have an endless appreciation for his ability to decorate his animals in eye-catchingly beautiful patterns that look painted from life.
The dome-nosed head of Giraffatitan, a huge sauropod dinosaur, looms into frame. The scaly, lightly wrinkled skin is splotched with a blend of greens, grey, and yellows in a pattern reminiscent of crocodylians. A group of vibrantly patterned "hypsilophodonts" forage amid the misty fern-coated floor of a Jurassic prairie. A herd of massive Diplodocus, sporting crests of iguana-like spines, pass in the middle distance. Far off, a brachiosaurid browses from towering conifers. A sandy-toned, subtly striped Allosaurus with blue crests charges through a dusty clearing, jaws agape and hands flexing. Portraits of Corythosaurus, Lambeosaurus, and Parasaurolophus, shown with earthy green, brown, and reddish tones in complex mottled patterns. Their keratin-sheathed crests are richly detailed, as are their scaly hides.
Reposted by Henry Thomas 🦤🏳️‍🌈
tetzoo.bsky.social
Today I attended The Colour of Dinosaurs at MAST Mayflower Studios in Southampton, a made-for-kids blend of science advocacy and theatre, with tons of music. It revolves around the work of Jakob Vinther, who plays himself, but also emphasises the diversity of its human cast and... cont
Mayflower Studios in Southampton. The Colour of Dinosaurs on stage. The Colour of Dinosaurs on stage.
Reposted by Henry Thomas 🦤🏳️‍🌈
Reposted by Henry Thomas 🦤🏳️‍🌈
sauriancyh.bsky.social
Rhamphorhynchus

Was intended to be just a sketch but I spent 2 or 3 too many weeks on it.
#paleoart #sciart
Ventral view of a Rhamphorhynchus flying under a bright blue sky, wings fully open, while looking down towards the pov. Ventral view of a Rhamphorhynchus flying under a bright blue sky, wings fully open, while looking down towards the pov, zoomed in to the animal's head, torso and hindlimbs.
Reposted by Henry Thomas 🦤🏳️‍🌈
oaklandzoo.bsky.social
Here it is, the signature soundtrack of Oakland Zoo (sound UP 🎶)

Gibbons make these whooping sounds for many reasons -- to send an alert about predators, as mating calls, to announce their territory to neighbors, or to strengthen social bonding.
Reposted by Henry Thomas 🦤🏳️‍🌈
threnody.bsky.social
hi, cis folks in california!

this headline leaves out that newsom has another 5 days to sign these bills into law. if you’d like to tell him he should do that to protect trans californians, you should to reach out.

he also has a phone: (916) 445-2841

want to know what to say? next post! 🧵
Reposted by Henry Thomas 🦤🏳️‍🌈
markwitton.bsky.social
Preview of my latest #paleoart piece: a baby bison flees the deadliest predator of Ice Age Europe. Harrowing, harrowing stuff.
Reposted by Henry Thomas 🦤🏳️‍🌈
skyemcdavid.com
Manuscript submitted - what @zhejiang0pterus.bsky.social and I initially thought would be a quick paper redescribing a handful of specimens but grew into 53 specimens, for which we traveled to 10 states plus DC... with some exciting implications.
Reposted by Henry Thomas 🦤🏳️‍🌈
stievenvdp.bsky.social
Hip Hip Hooray! Have a nice 120th nameday old chap.
Diorama feaaturing wildlife of the Hell Creek formation.
Reposted by Henry Thomas 🦤🏳️‍🌈
Reposted by Henry Thomas 🦤🏳️‍🌈
jvertpaleo.bsky.social
Oh hai! We're here now! Follow us for the latest articles published in the Journal of Vertebrate Paleontology!
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arctomet.bsky.social
Happy 120th Nameday, Tyrannosaurus rex and Albertosaurus sarcophagus!
Reconstructed skull of the holotype specimen of Tyrannosaurus rex The 1905 and 1906 reconstructions of the skeleton of Tyrannosaurus rex T. rex by Julius Csotonyi Skull of Albertosaurus sarcophagus at the Royal Tyrell Museum of Palaeontology
Reposted by Henry Thomas 🦤🏳️‍🌈
arctomet.bsky.social
For those who want to read the original Osborn paper from 1905 naming Tyrannosaurus rex, its junior synonym Dynamosaurus imperiosus, and Albertosaurus sarcophagus, here it is!

digitallibrary.amnh.org/items/a02fc8...
digitallibrary.amnh.org
Reposted by Henry Thomas 🦤🏳️‍🌈
astrafauna.bsky.social
Hi all! I'm Sarah the author and illustrator for #AstraFauna.
The book follows the non-official adventures of 5 alien scientists as they explore new worlds.
You can see more here! - www.astrafauna.com
#creatureart #NOAI #creature #scifi #indie