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Ruben Comitini

@rubencomitini.bsky.social
267 followers 272 following 230 posts

🎓 BSc in Natural Sciences 🇮🇹 🎓 Ongoing MSc in Palaeontology 🇫🇷 & 🇸🇪 Palaeontology (dinos and other reptiles + fossil plants sometimes) | Clean tech and sustainability | Biodiversity and nature conservation | I'm gay 🏳️‍🌈 & love BL series 🏳️‍🌈🇹🇭 | K-pop & T-pop 🇰🇷🎸🇹🇭

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Ruben Comitini @rubencomitini.bsky.social · 12/04/2026
Orbán massively defeated in Hungary! 🇭🇺🇪🇺 Another positive news for Europe in these recent times, after Meloni's referendum defeat and falling approval in Italy. Is this the Trump Effect?
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Anthony (Tony) J. Martin @ichnologist.bsky.social · 10/04/2026
This is an astonishing fossil find: an Early Triassic (~250 mya) baby Lystrosaurus still in "egg position" with/ 2 other babies, showing these mammal precursors hatched from eggs! Did these burrowers also nest in burrows? Must. Read. Article. Congrats to @jenniferbotha.bsky.social & colleagues! 🧪🪨🥚
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Denver Fowler Ph.D @denverfowler.bsky.social · 06/03/2026
BABY DUCKBILL: Steve just finished cleaning this super cute jaw, with rows of tiny teeth! This matches another jaw, femur, and vertebrae that we collected from the same site. A baby dino skeleton is coming out! #fossilfriday #dinosaurs #dinosaur #scicomm #fossils #publiclands
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Robert Boessenecker, Dr. of Whaleontology ™️ @coastalpaleo.bsky.social · 06/03/2026
#Fossilfriday Baby sea cow! Juvenile Dusisiren jordani skeleton from the upper Miocene (~9-10 myo) Santa Margarita Sandstone of the Santa Cruz mountains. On display at @nhm.org. When I first started digging up marine mammals 25 years ago, it was this species.
A juvenile skeleton of the Miocene sea cow Dusisiren jordani. The skeleton is dominated by the inflated ribs which make this little guy look like a bony blimp. This photo is from the top.A juvenile skeleton of the Miocene sea cow Dusisiren jordani. The skeleton is dominated by the inflated ribs which make this little guy look like a bony blimp. This photo is from bottom, and shows the flippers and the skull in better detail.A juvenile skeleton of the Miocene sea cow Dusisiren jordani. The skeleton is dominated by the inflated ribs which make this little guy look like a bony blimp. This photo is from side. The vestigial pelvis is evident.The adult ?female skeleton mounted side by side with the juvenile, shown as mother and calf. The adult has a proportionally longer tail.
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Anthony (Tony) J. Martin @ichnologist.bsky.social · 06/03/2026
For #FossilFriday, fossil ghost-shrimp burrows (ichnogenus Ophiomorpha) in Pleistocene limestone (125,000 years old), San Salvador Island, The Bahamas 🇧🇸. Co-leading a spring-break field course there with students from Emory & Oxford College of @emoryuniversity.bsky.social starting tomorrow. 🧪🪨⚒️🏝️🌊🐠🌿🦀
Densely packed fossil burrows in a gray limestone that look like pipes, some branching into "Y" shapes, and with knobby (pelleted) exteriors, with circular cross-sections.
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Ruben Comitini @rubencomitini.bsky.social · 06/03/2026
#FossilFriday Greetings from the Paleozoic Era! These are two rugose corals from the Ordovician of Sweden, then part of the continent of Baltica! Rugosa is an entirely extinct group of corals that disappeared during the catastrophic mass extinction at the end of the Permian.
Two solitary rugose corals (one is only partially visible at the bottom left of the image). The scale shows that the larger specimen is around 2 cm long. The stalk by which the animals would have been attached to the substrate is in both cases pointing towards the top right.
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Ruben Comitini @rubencomitini.bsky.social · 05/03/2026
This is what all EU leaders should be saying right now: "No a la guerra!" ("No to war!")
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Ruben Comitini @rubencomitini.bsky.social · 28/02/2026
Post a pic you took, no context, to bring some zen to the feed.
Steep mountains towering over a crystal blue sea in the Lofoten Archipelago of the Norwegian Arctic, during a clear and sunny day of August.
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Ruben Comitini @rubencomitini.bsky.social · 28/02/2026
If you are interested in the relationships between palaeontology and pop culture, in science fiction, in history of science or in all of the above this episode of Terrible Lizards (one of the podcasts I enjoy and recommend the most!) is really worth a listening.
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Literally Miguel 🇻🇪 @literallymiguel.bsky.social · 01/01/2026
Australovenator casually strolling on the beach
paleoart commission for James Stryker, color suggestion by claude :P
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Ville Sinkkonen @villesinkkonen.bsky.social · 11/02/2025
Pair of small dicynodonts Diictodon snoozing in their comfy burrow
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Natee (they/them) @himmapaan.bsky.social · 20/05/2025
Everyone's favourite hadrosaur. :} Parasaurolophus Ink on Fabriano Medioevalis, 132 × 85 mm.
Drawing in black ink of the hadrosaur, Parasaurolophus, walking over a patch of ferny groundcover. A trio of azhdarchid pterosaurs fly over in the distance. Parasaurolophus is one of the most well known hadrosaurs and has a distinctive, tubular head crest. The drawing is primarily in silhouette, with the white of the paper showing through in details such as the stripy markings on the hadrosaur's body. The artwork is very small and intricate, and is photographed with a penny for scale, together with the traditional Chinese brush used to draw piece.
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Ruben Comitini @rubencomitini.bsky.social · 21/02/2026
We should really kick all the various horrible individuals out of paleo. By that, I mean: nobody should allow them to publish papers, go to conferences, present seminars etc. Only in this way everyone will be able to enjoy the beauty of fossils feeling safe, welcome and at ease.
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Ruben Comitini @rubencomitini.bsky.social · 21/02/2026
Talked yesterday with few young colleagues about the new Spinosaurus. Pleased to see that, despite excitement for the fossils, everyone, regardless of their gender, was equally disgusted to see an Epstein associate as author. I hope that young paleontologists will do better than many predecessors...
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Ruben Comitini @rubencomitini.bsky.social · 16/02/2026
Sunday bicycle ride (despite temperature below -8°C) near my new home in Gamla Uppsala (Sweden), where I moved last month to study Paleobiology at Uppsala University. Saw viking burial mounds, a XII century church and XIX century wooden buildings.
A path zigzagging between snow-covered fields. In the background, several viking burial mounds, and, behind them, a tall church. The sky is bright, without even one cloud.A path between mounds, leading to an old church surrounded by old, tall deciduous trees (obviously barren, given the season).The same old church mentioned in the previous pictures, the construction of which started in the XII century. It stands tall in front of a cemetery surrounded by stonewalls.A XIX century wooden building with red roof and green doors and decorations on the facade, hosting a restaurant.
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Brandon Peecook @gondwannabe.bsky.social · 13/02/2026
A favorite for #FossilFriday: this exquisite skull of the late Permian therocephalian Ictidosuchoides from the upper Madumabisa Mudstone Formation of #Zambia 🇿🇲 Check out those post dentary bones! 👂🏻? @burkemuseum.bsky.social
A reddish brown skull with big eyes and little teeth looking to the left; black metal scale bar shows it is around 12cm long.A reddish brown skull with big eyes and little teeth looking to the right; black metal scale bar shows it is around 12cm long.
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Joschua Knüppe @joschuaknuppe.bsky.social · 14/02/2026
Because of Valentine's Day we had today a Flower Flocking #paleostream, covering different kinds of fossil angiosperms! Florissantia, Lovellea, Leguminocarpum and Sagaria!
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Museum of the Rockies @museumoftherockies.bsky.social · 14/02/2026
Happy #FossilFriday! MOR Assistant Lab Manager Cassi Knight comes face to face with #BigAl (#MOR693). Typically, the skull of this #Jurassic carnivore is on display in MOR’s Hall of Giants, but today it’s undergoing regular conservation in the Paleo Department.
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Ruben Comitini @rubencomitini.bsky.social · 11/02/2026
We live in a world so weird that DinoCon gets mentioned in an episode of the Daily Show dedicated to the Epstein Files... as a positive example of how to deal with that stuff, opposite to what is done by the... US Department of Justice!?
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Lynn Stahl @msbtterswrth.altgov.info · 10/02/2026
How is the dinocon board handling the Epstein field more seriously that than the United States dept of justice??
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Natalia (娜塔莉) @wrycritic.bsky.social · 07/02/2026
始祖马
Happy New Year, Horse, with Eohippus
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Ruben Comitini @rubencomitini.bsky.social · 06/02/2026
#FossilFriday A Middle Devonian gastropod in thin section, from Northern France. The Gastropoda are the most diverse group of shelly animals alive today, with >35k described species (>60k estimated). They have appeared in the Cambrian and have left an excellent fossil record.
Thin section of a carbonate rock showing a gastropod in a brown, fine-grained matrix. Other fossil shells can be seen on its right.
Observed with 10x objective.
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Filippo Bertozzo, PhD @fbertpaleo.bsky.social · 06/02/2026
Maybe a bit late for web timing, but ehy, NEW PAPER ON #fossilfriday!!! I am proud to present you Haolong dongi gen. nov. sp. nov., a new hadrosauroid from the Early Cretaceous of China! The specimen, almost complete, is a juvenile iguanodontian from the Yixian Formation of the Barremian (125 Mya).
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Emily Thomas 🦤🏳️‍🌈 @zhejiang0pterus.bsky.social · 06/02/2026
The one rule regarding dinosaur integument is that we should never underestimate its diversity
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Claude ✡️🦖🦕 @cascoclauda.bsky.social · 06/02/2026
a very warm welcome to haolong dongi, a fascinating hadrosauroid from the early cretaceous yixian formation described by huang et al. 🎉 the near-complete holotype preserves highly unique integumentary structures unknown in other dinosaurs www.nature.com/articles/s41 (art by fabio manucci)
art depicting two haolong individuals, depicted with the unique spikey integument preserved with the holotype
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Cam Muskelly (Explorer of Deep Time ⏰ ⚒️) @cambriancam.bsky.social · 03/02/2026
Welcome back to #TrilobiteTuesday! Here is the cephalon of the "lace collar" trilobite Cryptolithus tessellatus. This comes from the Upper Ordovician Kope Formation (Lower Cincinnatian Series) in Maysville, Kentucky. What you usually find are just pieces scattered throughout the limestones.
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Richard Gibson @richardgibson.bsky.social · 02/02/2026
#MineralMonday Tiny silver crystals in a cavity in native copper, Osceola Mine, Michigan USA. The silver crystals are about 0.5 mm each.⚒️ #geology . No MAGA! Science = Resistance! #standupforscience
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PaleoJim @paleojim.bsky.social · 01/02/2026
Jack Horner in the Epstein File trying to raise money to fund dinosaur research. When I discovered we had rich nazis on our dig in 2008, I dropped them like a rancid turd; ask Don. There will never be a Trumpasaurus with my name attached! @paleontologizing.bsky.social @utahpaleo-ufop.bsky.social
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Skye McDavid @skyemcdavid.com · 01/02/2026
Jack Horner being in the Epstein files is not something I had on my bingo card for 2026.... Horner seemingly visited Epstein's ranch multiple times, including apparently with a student.
Email from Leslie Groff to Jeffrey Epstein
Subject: Jack Horner to Ranch
"Jack Horner says to please tell you he would love to see your ranch and he would be abailable to come any day after July 25th."Email from Lesley Groff to Jeffrey Epsetin
Should I check in with Jack Horner? He believes hens to leave for the ranch on July 26 (2 weeks from today). Do I need to tell him plans are in a holding pattern?

Jeffery Epstein responds:
delay him one day

Lesley Groff responds:
Another tid bit! JE is asking me to delay jack horner one day! So this would be an arrival of July 27 depart 29... I have emailed Jack to aske if this would work with his schedule.... :)Email from John Horner to Jeffrey Epstein 6/29/2012

Hi [redacted] Since i don't really know how long it would take to get from Albuquerque to the ranch and visa versa [sic], and don't know how I'm to get there (would someone be picking me up or should I rent a car) it would probably be best if you just booked the flight for me. Delta Airlines connecting through Salt Lake is the most convenient for me. My official name and frequent number [sic] is:
John Robert Horner
Delta # [REDACTED]
The geology maps are perfect.
Jackemail from Lesley Groff to Jeffrey Epstein
"Reminder: John Horner and student to visit ranch today...  [redacted] =ill  [sic] be taking care of them...
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Anne-Laure D 🌿 @aldpaleo.bsky.social · 30/01/2026
Today's lycopsids ("clubmosses") are small plants and do not produce wood but some of their Paleozoic relatives did! This is a detail of the wood cells in a stem of Sigillaria from the Carboniferous of the USA 🔬🌿⛏️ Happy #FossilFriday! #paleobotany #botany
Detail of the wood tissue in a fossil stem of Sigillaria seen under the microscope. It shows files of conducting cells and rays.
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David Clark @clarkeocrinus.bsky.social · 30/01/2026
I usually stick to echinoderms, but this insect was so stunning. This is a Cretaceous aged Neuropterid insect, Hemerobidae sp. #FossilFriday
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Cam Muskelly (Explorer of Deep Time ⏰ ⚒️) @cambriancam.bsky.social · 30/01/2026
Welcome back to another #FossilFriday Here is the molar from an American Mastodon (Mammut americanum). This comes from Pleistocene deposits in San Jacinto County, Texas. Mastodons used their bumpy molars for grinding up twigs, leaf matter, and other shrubs.
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Ruben Comitini @rubencomitini.bsky.social · 28/01/2026
Listen to this ⬇️ Finally someone standing up! #StreetsOfMinneapolis
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Nathan Dehaut @nathandehaut.bsky.social · 27/01/2026
Sunsets, clouds and pterosaurs Tupandactulys, Arambourgiana & Darwinopterus
Illustration of pterosaurs from yhe Jurassic and Cretaceous flying in the sunset. These flying reptiles are related to dinosaurs.

Paleoart
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Cephalopods Daily @cephalopodsdaily.bsky.social · 25/01/2026
Look at him. So small. So adorable. So blissfully oblivious to the horrors happening on dry land. 🦑📷Poseidon’s Adventure (inaturalist.ca/observations...)
A small Berry's Bobtail Squid (Euprymna berryi), probably a juvenile, sitting on the sand.It is being illuminated like it is a spotlight, probably from a flashlight. It is small and cute, with its eyes being a bit large proportionally to the rest of its body. Its mantle is relatively short. the bobtail squid is orange with some blue, cyan and yellow iridescence areas, especially around its eyes.
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Ben Miller @extinctmonsters.bsky.social · 23/01/2026
(sub) #FossilFriday: For a change of pace, here are some mostly-uncataloged remains of aurochs, bison, goats, etc from Jarmo, a 9,000 year-old agricultural village in Iraq. 🐃🦬🐐
Antler/horn sections and an indeterminate small animal skeleton with no head, in trays in a museum drawer.Horn core and various vertebrae in foam trays inside a museum drawer
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Kaedan O'Brien, Ph.D. @deadbovids.bsky.social · 23/01/2026
A Deinotherium tooth from the Pliocene of western Kenya, along with a reconstruction of these giants by Mauricio Antón #FossilFriday
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Cam Muskelly (Explorer of Deep Time ⏰ ⚒️) @cambriancam.bsky.social · 23/01/2026
Welcome back to #FossilFriday Here is quite a large solitary rugose (horn) coral belonging to the taxa Grewingkia canadensis. This specimen was collected from the Upper Ordovician Whitewater (upper cincinnatian series) Formation in Indiana.
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Natee (they/them) @himmapaan.bsky.social · 19/01/2026
European goldfinch. Watercolour on silk mounted on paper. I had to wash out and repaint the scapulars and marginal coverts three times. Hugely relieved it worked out in the end. 🥲 I'll post the full piece when it will be available at auction next week. 🙏
Detail from a painting of the head and upper body of a European goldfinch, photographed with a penny and a traditional Chinese brush. The piece is small and delicate. The bird's head is roughly comparable in size to the penny, only slightly larger.
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Tom Sharpe @tomsharperocks.bsky.social · 12/01/2026
#MolluscMonday: a lichen-encrusted example of the large Late Jurassic ammonite Titanites at Portland, Dorset.
A large coiled fossil shell in a pale grey rock resting on some grass with a hammer in the lower left corner providing some scale.
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Ruben Comitini @rubencomitini.bsky.social · 12/01/2026
Yay! Despite maximum daily temperatures going above 10°C, our pond has still been continuously frozen ❄️❄️❄️
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Ruben Comitini @rubencomitini.bsky.social · 11/01/2026
I've spent a wonderful weekend in the Italian Alps (yesterday in Aosta Valley, today in Piedmont). Good memories before leaving for my next semester in Sweden!
Larch forest in a very white, snowy day. Aosta Valley (Italy), yesterday.High alpine peaks under a pale blue sky. A tall larch tree cuts the picture. Piedmont (Italy), today.
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Ruben Comitini @rubencomitini.bsky.social · 09/01/2026
#FossilFriday Holotype of the phocid pinniped Pliophoca etrusca, exhibited at the Natural History Museum (University of Pisa). It comes from the Pliocene of Tuscany, and was likely related to Mediterranean monk seals. It was described by Tavani (1941) and reevaluated by Berta et al. (2015).
Photo showing the anterior half of a well-preserved partially articulated skeleton of a phocid. Part of the skull and of some limb bones has been reconstructed.
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Kaedan O'Brien, Ph.D. @deadbovids.bsky.social · 02/01/2026
Perfect match! Fossil and modern Common Eland horn from Kenya #FossilFriday
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Robert Boessenecker, Dr. of Whaleontology ™️ @coastalpaleo.bsky.social · 02/01/2026
#fossilfriday Upper molar of a 30-31 myo fossil dolphin, Olympicetus, from the Makah Formation of Washington - acid etched from a concretion; associated with nice skull, earbones, and several additional teeth. Provided for prep/study by Jim Goedert. A calf - probably 4-12 months old at death.
A multicuspate dolphin molar in five views - it is triangular, with a D-shaped cross-section, and eight subtriangular/conical cusps and longitudinal ridges on the enamel. The roots are not yet developed and the tooth is completely hollow.
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Cam Muskelly (Explorer of Deep Time ⏰ ⚒️) @cambriancam.bsky.social · 07/01/2026
January 7th is National Old Rock Day! Well here is an old rock! These white circles are cross sections of Archaeocyathids. These were a type of sponge that built reefs during the Early Cambrian. This comes from the the Forteau Formation in southern Labrador, Canada. Over 516 million years old!
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Ruben Comitini @rubencomitini.bsky.social · 06/01/2026
With an average temperature here (Ivrea, Piedmont, Italy) that this month is below 2°C (so far), our pond is completely frozen, with an ice layer a few centimetres thick! ❄️❄️❄️
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David Clark @clarkeocrinus.bsky.social · 05/01/2026
Fuck it. It's not Friday, but I'm going to share fossils. This is Porocrinus, an echinoderm from the Ordovician Maquoketa formation near Eldorado, Iowa. The arms are missing, but the calyx is very unique.
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Ruben Comitini @rubencomitini.bsky.social · 05/01/2026
If you're upset by yet another conflict motivated by fossil fuels extraction Remember there is something you can do: STOP USING FOSSIL FUELS 🚫🛢️🚫 Do not use combustion cars, minimize air travel, buy as little plastic as you can, and if you can put solar panels on your house... do it! #Venezuela
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