Sign in

Christian Halliwell

@pryftan213.bsky.social
47 followers 95 following 45 posts
PostsRepliesMedia
Reposted by Christian Halliwell
Asher HELLbein @asherelbein.bsky.social · 07/10/2026
My latest for National Geographic! A new study suggests that you really, *really* would not want to be hit by a lunging mosasaur
nationalgeographic.com
This Cretaceous 'Sea Monster' Attacked Prey Faster than Great White Sharks
By analyzing tail length and muscle power, paleontologists have explained the physics behind a mosasaur's deadly ability to lunge toward its prey.
215245
Reposted by Christian Halliwell
Kiersten Formoso, PhD(epressed) @formorphology.bsky.social · 07/10/2026
Got some exciting new mosasaur research out today in Current Biology! How fast could these predators burst? www.cell.com/current-biol...
cell.com
Mosasaur tail morphology reveals burst swimming performance and ecological diversity
Formoso et al. develop a drag-based “slam-start” model to estimate lunge velocity in four mosasaurs from skeletal and muscle reconstructions. Tail curl amplitude mainly drives performance: russellosau...
14017
Reposted by Christian Halliwell
The Anatomical Record @anatrecord.bsky.social · 23/09/2026
A fresh look at historic mosasaur fossils from Belgium! New study by Sharpe et al. confirms Mosasaurus lemonnieri as a valid species, describes a new mosasaurine, Thoraxion tahlequahae & reveals insights into mosasaur anatomy, variation & evolution anatomypubs.onlinelibrary.wiley.com/doi/10.1002/...
0179
Reposted by Christian Halliwell
Asher HELLbein @asherelbein.bsky.social · 20/09/2026
An incredibly lovely and evocative animated short. I *highly* recommend taking the 3 or so minutes to watch this
youtube.com
'Noon of Night' a dinosaur animated short // the Morrison Formation
YouTube video by Cinedaw
314465
Reposted by Christian Halliwell
Rudolf Hima @himarudolf.bsky.social · 16/09/2026
Temnodontosaurus
181429360
Reposted by Christian Halliwell
Claude ✡️🦖🦕 @cascoclauda.bsky.social · 13/09/2026
a belated warm welcome to mandrasuchus 🐊 this alligator is described from the early paleocene corral bluffs site in colorado by lessner et al., and was likely only 2m long when fully grown, comparable to some of the smallest living crocodilians (art by andrey atuchin)
art of mandrasuchus in a swampy environment crunching down on a crustaceantwo mandrasuchus skulls
36020
Reposted by Christian Halliwell
Alberta Claw @albertonykus.bsky.social · 10/09/2026
Remains of a hesperornithiform (diving theropod closely related to modern birds) including feathers preserved in a coprolite from the Hell Creek Formation: www.cell.com/current-biol... 🪶🧪 (📷O'Connor et al.)
Preserved feathers from a diving bird-like dinosaur contained within fossilized feces, along with a map showing where the specimen was discovered in Montana, U.S.A.
15916
Reposted by Christian Halliwell
Farid Saleh | فريد صالح @taphozoan.bsky.social · 26/08/2026
New paper 🧪🪨🦐: We describe the N'kob Biota, a new Middle Ordovician Biota from Morocco that fills a critical gap between the Early Ordovician Fezouata Biota and the Late Ordovician Tafilalt Biota. Out now in Geology: doi.org/10.1130/G546... Art by @joschuaknuppe.bsky.social
111051
Reposted by Christian Halliwell
Darren Naish @tetzoo.bsky.social · 24/08/2026
FINALLY, I can reveal that we weren't showing C. spelea, but another, larger species: the newly announced Cryptoprocta bevatabe Lewis et al., 2026. We got the scoop on this animal years back, deliberately portrayed it in the show... cont
Montage showing giant black fossa with C. ferox, drawings by Darren Naish.
16411
Reposted by Christian Halliwell
Asher HELLbein @asherelbein.bsky.social · 14/08/2026
"Where do turtles belong on the reptile family tree?" is one of those questions that seems like a no-brainer. In actual fact, when you take a step back, turtles are *extremely* weird! I wrote about it for National Geographic
nationalgeographic.com
What, Exactly, Is a Turtle?
Paleontologists have resolved a decades-old debate over turtle evolution in a new study of 210-million-year-old skull fossils.
13346102
Reposted by Christian Halliwell
Joschua Knüppe @joschuaknuppe.bsky.social · 10/08/2026
Result from the López de Bertodano Formation #paleostream! I have been looking forward to this one for a while as it combines some fascinating aspects of the latest Cretaceous. This formation was deposited in Antarctica and I hear you all: "wait a sec, that's not what I...
416958
Reposted by Christian Halliwell
✺ 𝕸𝖔𝖙𝖍 ✺ @mothsprout.bsky.social · 09/08/2026
✷What is that song you sing for the dead?✷
162728949
Reposted by Christian Halliwell
Bob Nicholls Art @bobnichollsart.bsky.social · 30/07/2026
NEW PAINTING TIME! Here is "Consuming the Fallen," commissioned by The Etches Collection. It features over 50 different species of marine vertebrates and invertebrates. #SciArt #PaleoArt #MarineReptiles #SeaRex #Pliosaurus #Ichthyosaurs #Jurassic #JurassicWorld #Thalassodraco #Sharks
1023468
Reposted by Christian Halliwell
Ville Sinkkonen @villesinkkonen.bsky.social · 26/07/2026
End cretaceus hell
181917558
Reposted by Christian Halliwell
Midiaou Diallo @midiaou.bsky.social · 19/07/2026
"Blind Old Man" 1 Hour Tyrannosaurus mcraeensis sketch. An old male wanders along the beach, in search of scraps thrown back up by a sickened Western Interior Seaway Doing $30-$40 1 hour sketches like this to help with funds an unexp. situation for the next 2 weeks, hit me up or share pls🙏🏾 #sciart
An old male wanders along the beach, in search of scraps thrown back up by a sickened Western Interior Seaway
09825
Christian Halliwell @pryftan213.bsky.social · 01/07/2026
Let's gooo
010
Reposted by Christian Halliwell
Forgotten Bloodlines: Agate @agatebloodlines.bsky.social · 04/06/2026
Meet Palaeocastor. New clip on YouTube! youtu.be/-hUslatBqnY
youtu.be
The Burrowing Beavers | Forgotten Bloodlines Official Clip | Paleo-Documentary
YouTube video by Digital Duck
23316
Reposted by Christian Halliwell
Mark Histed @markhisted.org · 29/05/2026
"The plan is to kill off publicly funded academic science in this country." Correct. And that means killing off the whole US science and innovation industry. Because it's all built on a foundation of basic research—which. can. only. be. funded. by. public. dollars.
141001386
Christian Halliwell @pryftan213.bsky.social · 30/05/2026
This is so sick 🔥
000
Christian Halliwell @pryftan213.bsky.social · 28/05/2026
000
Reposted by Christian Halliwell
Dr. Amelia R. Zietlow 🦎 @tyrantlzrdqueen.bsky.social · 22/05/2026
TEX is the culmination of my PhD research. Not only do we describe & figure our new species in exhaustive detail, but we include a revised phylogenetic dataset for analysis of Mosasauridae, & my measurement dataset for HUNDREDS OF MOSASAURS & EXTANT LIZARDS-& it's ALL OPEN ACCESS
27121
Christian Halliwell @pryftan213.bsky.social · 22/05/2026
Really excited to finally see this out
071
Reposted by Christian Halliwell
Kevin Bird @stairwaytokevin.bsky.social · 10/05/2026
People have got to wake up to how bad the situation in US science is right now
5319129
Reposted by Christian Halliwell
Natural History Museum, London @nhm-london.bsky.social · 08/05/2026
Join us in wishing a massive happy 100th birthday to the man who has inspired millions of people around the world to care about nature and look after our planet - the incredible Sir David Attenborough! 🎉
David Attenborough standing outside the Museum wearing a blue jacket and blue and white patterned tie. He is laughing in the image, which features text saying "Happy 100th birthday Sir David Attenborough!"
1730229
Reposted by Christian Halliwell
Ville Sinkkonen @villesinkkonen.bsky.social · 03/05/2026
Lazy sunday sketching. Deinotherium and some funky bipedal apes in a watering hole somewhere in east africa #sciart
5818182
Reposted by Christian Halliwell
Robert Boessenecker, Dr. of Whaleontology ™️ @coastalpaleo.bsky.social · 27/04/2026
Important new paper! A fragmentary but super early fossil cetacean: introdocing Kalakocetus from the early Eocene of India. It's got molars that are intermediate between the herbivorous raoellids (cetacean sister taxa) and the carnivorous early whales like Pakicetus. www.nature.com/articles/s41...
The mandible and dentition of Kalakocetus from the original paper. Most of the teeth are triangular and double rooted; the mandible is small, around 20 cm long.A phylogenetic tree showing the placement of Kalakocetus as the earliest diverging cetacean, branching off before Pakicetus and later archaeocetes. The tooth morphology is intermediate between the herbivorous raoellids and the carnivorous pakicetidsTooth wear in early cetaceans, showing that Kalakocetus has tooth wear intermediate between raoellids and early whales
03612
Christian Halliwell @pryftan213.bsky.social · 25/04/2026
Couldn't not say something about this here, Ben Bartlett is in my opinion one of the great composers of our time and his work has always been a huge inspiration and influence to me. Devastated to hear of his passing, I wish the best to his family and friends
041
Reposted by Christian Halliwell
Dr Craig R McClain @drcraigmc.bsky.social · 23/04/2026
I know everyone wants there to be a Giant Cretaceous Octopus but after looking at methods and tables, I really don't think this is a reality.
1923886
Christian Halliwell @pryftan213.bsky.social · 12/04/2026
This is deeply unserious animal
010
Reposted by Christian Halliwell
Natalia (娜塔莉) @wrycritic.bsky.social · 11/04/2026
Cold spring in Liaoning. Two anchiornithids fighting. Tianyulong unbothered.
A wintery landscape with brown-grey colour scheme
71433527
Reposted by Christian Halliwell
Claude ✡️🦖🦕 @cascoclauda.bsky.social · 09/04/2026
LOOK AT THE BABY LYSTROSAURUS
the first two images show the specimen and a CT scan of the specimen; the third shows a reconstruction of the specimen in its egg
420876
Christian Halliwell @pryftan213.bsky.social · 29/03/2026
Obligatory plug of marine reptile-related paleomedia - definitely my favourite of the Dinosauria shorts so far, apart from Hunted by Moonlight
000
Reposted by Christian Halliwell
Ville Sinkkonen @villesinkkonen.bsky.social · 29/03/2026
Cambrian on my mind #sciart
81977593
Reposted by Christian Halliwell
Asher HELLbein @asherelbein.bsky.social · 27/03/2026
My latest! This piece on the extraordinarily long history of indigenous bird knowledge has had a *very* long and winding road to publication, and I'm super happy it found a home at Foreign Policy. A hearty thanks to @beijingpalmer.bsky.social for snapping it up and carrying it over the finish line!
foreignpolicy.com
The Birds That Run the Land
Indigenous knowledge is helping conservationists manage delicate ecologies.
215052
Reposted by Christian Halliwell
The Palaeontological Association @thepalass.bsky.social · 26/03/2026
Distinct feeding biomechanics in Late Cretaceous marine reptiles from the Western Interior Seaway onlinelibrary.wiley.com/doi/10.1111/... @just-fre.bsky.social @universitedeliege.bsky.social @datadryad.bsky.social
At the top, digital models of a mosasaurid (left) and polycotylid (right) skull, with the various insertion sites for muscles associated with biting shown in different colours. At top left is a silhouette representing a mosasaur (Platecarpus typmpaniticus; Johan
Lindgren, Michael W. Caldwell, Takuya Konishi, Luis M. Chiappe CC BY-SA 3.0). At top right is a silhouette of polycotylid Dolichorhynchops osborni.
At the bottom is a plot representing the optimized biting adaptive landscape projected over the functional morphospace, showing the distribution from higher biting optimization (yellow, top right) to lower (blue bottom left). Polycotylid skulls feature on the left and mosasaurids on the right.
04118
Reposted by Christian Halliwell
cuteosphere @cuteosphere.bsky.social · 26/03/2026
Artists, never forget that you are not a brand. You do not need to be consistent and marketable. If you CHOOSE to strive for these things that’s fine, but you do not NEED them. You are a fucking person, multi-faceted and complex. People who do not respect that see your art as a product
1750821850
Reposted by Christian Halliwell
Riley Black 🏳️‍⚧️ 🦖 @restingdinoface.bsky.social · 18/03/2026
A few weeks ago CBC reporter Sheena Goodyear reached out to me for comment on the new Spinosaurus paper. I said I couldn’t, because of Epstein connection Nathan Myhrvold’s involvement with it. We got to talking about how paleontology - especially dinosaur research- remains hostile to women. 🧪
cbc.ca
Paleontology has an Epstein problem. Women in the field say it's a symptom of a deeper misogyny | CBC Radio
The names of hundreds of scientists have appeared in the Epstein files, including prominent dinosaur researchers. As the paleontology community reckons with the fallout of these revelations, women in ...
251085451
Reposted by Christian Halliwell
Ville Sinkkonen @villesinkkonen.bsky.social · 07/03/2026
Illustration comissioned by Erica @gutsickgibbon.bsky.social for her wonderful video on co existance of Early Homo and Australopithecus lineages at Ledi Geraru. Link to the video: m.youtube.com/watch?v=CQvC...
730659
Reposted by Christian Halliwell
Steve Mullis @stevemullis.net · 22/02/2026
This is the most incredible footage of blue whales I’ve ever seen
9969132259
Reposted by Christian Halliwell
Mark Witton @markwitton.bsky.social · 19/02/2026
I mean, yes, fun dinosaur stuff is fun dinosaur stuff. But Myhrvold is mentioned in the recent batch of Epstein files over 1000 times (far more than Horner). Some of the correspondence between the two is very chummy and concerning. See: www.seattletimes.com/business/loc....
seattletimes.com
Records show deeper ties between Epstein, ex-Microsoft exec
Emails show a yearslong relationship from at least 2010 through 2018, according to documents released to the public last week.
119349
Reposted by Christian Halliwell
Midiaou Diallo @midiaou.bsky.social · 17/02/2026
Haolong dongi, the “Porcupine” Iguanodont. At about 2.5 meters long, not much would stand out about this Hadrosauroid had we just their skeletal remains, but thanks to the preservational nature of the Yixian Formation, we’ve come to uncover amazing details about the anatomy of this animal #sciart 🧵>
411245
Reposted by Christian Halliwell
Dr. Meaghan Wetherell @geopetalfabric.bsky.social · 12/02/2026
Pretty sure nothing happened to this individual. The guy had guns in his hotel room. SVP knew he was an issue in advance and instead of rejecting his abstract, they asked him to edit it to not name specific people in his weird manifesto.
1105
Christian Halliwell @pryftan213.bsky.social · 03/02/2026
Looking forward to people finally getting to see what we've been working on all this time - I couldn't be more proud of the way this film is turning out and to be a part of it
010
Reposted by Christian Halliwell
Laura Cooper @transitionalform.bsky.social · 21/01/2026
Our paper on the mysterious Devonian organism Prototaxites has now finally been published! See the paper here (www.science.org/doi/10.1126/...) and our explainer thread below! Prototaxites reconstruction by Matt Humpage
401146417
Reposted by Christian Halliwell
Armin Reindl @arminreindl.bsky.social · 18/01/2026
New paper just dropped finally describing a complete specimen of Dakosaurus maximus and what a beauty it is. Some highlights, in addition to this being a long time coming, is the presence of bitemarks on the face and chondrichthyan material in the stomach doi.org/10.26879/1577
Skeletal reconstruction of specimen DMA-JP-2009/001. Like other metriorhynchids its long with a streamlined body, triangular and deep skull with large eyes, long teeth, a tail fluke and very short arms.
The fossil of DMA-JP-2009/001 as it is preserved. The skeleton is complete and posed in a U-shape, with the head curving up to the right and the tail to the left. A scalebar is shown equivalent to 1 meter.
18925
Reposted by Christian Halliwell
Michael Chiappone @chiapponenature.bsky.social · 13/01/2026
The first chapter of my PhD is published! If you're interested in how bones can be buried in floods, check it out in Paleobiology! (doi:10.1017/pab.2025.10087) And if you want to see the full scale experiments we ran, I did a summary video featuring a cover of When the Levee Breaks! #Taphonomy
youtu.be
When the Levee Breaks - Taphonomy in Action
YouTube video by Earth Encompassed
34919
Reposted by Christian Halliwell
Joschua Knüppe @joschuaknuppe.bsky.social · 13/01/2026
Result from the Agate Fossil Beds #paleostream! This early Miocene lagerstätte from Nebraska (USA) is a fantastic window into our understanding of the transition from forest communities to grassland biomes...
718265
Reposted by Christian Halliwell
Christopher Wheat @chriswheat.bsky.social · 26/12/2025
One dramatic advance in evolutionary biology over the past 20 years has been the empirically lead shift in thought, away from rigid species boundaries towards introgression being very common, much of it adaptive. The ramifications are still rippling out (e.g. in ConBio). Below is a nice addition:
1204
Reposted by Christian Halliwell
Tess Gallagher @tessasaurus.bsky.social · 10/12/2025
Excited to announce that my second manuscript, “Fossilised Melanosomes Reveal Colour Patterning in A Sauropod Dinosaur” has been published in @royalsociety.org !! Diplodocus scales are complex and diverse, and it turns out their color patterning was even more so. A 🧵🦕 1/26
5326134