Alessandro Chiarenza

📢 Including fossil tips in your phylogeny can double your continuous trait model fitting accuracy!

Updated preprint out now on @ecoevorxiv.bsky.social.

🔗 doi.org/10.32942/X27...

with @pedrolgodoy.bsky.social @macroecoevoale.bsky.social and @bethanyjallen.bsky.social

Yeah - I have run the dataset and noticed the same thing. I think @val-fisch.bsky.social did it too. Maybe worth an official comment... (?)

Just got my hot-off-the-press copy of the new edition of Dinosaurs: How They Lived and Evolved, written by @tetzoo.bsky.social and yours truly, with gorgeous new cover art from @bobnichollsart.bsky.social: finally, a sauropodomorph on the cover 🦕🦕🦕 On sale soon!

At our next #LapworthLecture on Mon 9 March, Dr Alfio Alessandro Chiarenza will speak about his research on #dinosaur ecosystem responses to #climatechange during the Mesozoic.

Free & open to all.

More info: www.birmingham.ac.uk...

Illustration: Davide Bonadonna

Alessandro Chiarenza

It was a pleasure for me discussing dinosaur ecology, evolution, and Mongolia fieldwork with you all at ICAL. Great research insights from many of you and thanks particularly to @fossilrob.bsky.social for the hospitality and the precious book gifts! Cheers from Georgie the Gorgosaurus 🦖

Our job adverts are now live! 🤩
We are hiring a Research Software Engineer and a Community Engagement Coordinator to support @palaeoverse.bsky.social over the next two years, based at UCL.
Apply by January 18th 2026, ideally to start in March 2026 🗓️
More info and links below 👇

A hidden diversity of ceratopsian dinosaurs in Late Cretaceous Europe - Nature New results indicate that rhabdodontids and the previously described Ajkaceratops are actually distinctive European ceratopsians, a group better known from Asia and North America.

Out in @nature.com today, we shake up the ornithischian family tree. Remember those weird Late Cretaceous iguanodontians, the rhabdodontids? Well they're weird because they aren't iguanodontians. They're ceratopsians. Well, at least some of them are... www.nature.com/articles/s41...

Lava flow front from the ongoing effusive eruption in Valle del Bove, #Etna, Saturday, 3 January 2026, ~1345 m a.s.l.

🚨 Pre-announcement! 🚨

We’re hiring for 2 x two-year, full-time roles to join me and the wider @palaeoverse.bsky.social team @es-ucl.bsky.social.

- Research Software Engineer (REF: B04-06999): lnkd.in/eNRBiPnP

- Community Engagement Coordinator (REF: B04-06998): lnkd.in/ejUACCzn

Palaeoverse Palaeoverse (https://palaeoverse.org) is an organisation that aims to bring the palaeobiology community together to share resources, work toward data standards, and improve reproducibility in palaeobi...

Are you familiar with the @palaeoverse.bsky.social Lecture Series?

Check out our YouTube Channel for lectures from community experts on method development and application in Palaeontology:

www.youtube.com/@ThePalaeove...

We will be announcing the next set of lectures in the New Year, stay tuned!

Looking for a PhD in palaeontology or associated fields? Just a heads up that we have a list of opportunities on the @thepalass.bsky.social website:

palass.org/phd-opportun...

⚒️🧪🦀🦑 #evosky

(If you're advertising one, you can add it to our listings too: palass.org/form/webform... )

18. Dinosaurs were doing fine (before the asteroid), with Steve Brusatte. part 1 YouTube video by The Fossil Files Podcast

If you can endure the bad jokes and childish banter, check out my chat with Susie & Rob on the latest @thefossilfiles.bsky.social podcast!

What were dinosaurs up to right before the asteroid hit?

@tweetisaurus.bsky.social @fossilrob.bsky.social #fossilfriday

www.youtube.com/watch?v=l4Q6...

🪨💥🌎🦖🦕 What were dinosaurs up to before the asteroid hit? In the latest @thefossilfiles.bsky.social, @tweetisaurus.bsky.social and I sit down with @stevebrusatte.bsky.social to talk about new insights from New Mexico, out now on YouTube or where ever you get your podcasts youtu.be/l4Q6ifORvVY?...

The best dinosaur discoveries of 2025 We’re in a golden era for dinosaur science.

I wrote a piece for @theconversation.com about the top dinosaur discoveries of 2025, featuring Zavacephale, Istiorachis, Spicomellus, Nanotyrannus and Huayracursor. Research from @tweetisaurus.bsky.social @valdosaurus.bsky.social, Lindsay Zanno and more:

theconversation.com/the-best-din...

My linocut portrait of Zofia Kielan-Jaworowska shows her as in slacks and sleeveless button down with collar turned in a 3/4 view with her right arm extended and left arm bent and resting on the small of her back. She has short hair and appears brightly lit from the left side. In front of her are the Fighting Dinosaurs fossils: a protoceratops and velociraptor entwined. Above her hand is a Cretaceous rodent Catopsbaatar and behind her is a Deinocheirus dinosaur. She is in the field in Mongolia with mountains in the distance. The print is made in a gradient of sandy golden green through dark green-brown through a dark rust from the bottom to the top.

Day 15 #artAdventCalendar is my #linocut 🐡🧪👩🏼‍🔬⚒️ #histsci of Zofia Kielan-Jaworowska (1925-2015) a Polish #paleobiologist, famous for a series of Polish-Mongolian expeditions she lead from 1963-1971 to the Gobi desert, where she discovered dinosaurs including the Deinocheirus, where she & team found 🧵

You were there in spirit (and picture!)

Looking forward to presenting on Sunday (15:30, Richmond Building) at PalAss @thepalass.bsky.social in Portsmouth on climatic drivers of crocodile-line archosaurs macroevolution @alexh-palaeo.bsky.social @pdmannion.bsky.social #PalAss25 #conference #portsmouth

Loved being part of this project, led by Marco Muscioni 🐊🌍🦷

We are excited to have been awarded a Large Grant by @softwaresaved.bsky.social! 🥳
This will help us future-proof our R packages and tools, and provide more training and mentoring for computational palaeontologists.
Coming soon: job ads for two new team members! 👀
www.software.ac.uk/ssi-awards-f...

We'll be hosting a joint Crossing the Palaeontological–Ecological Gap (CPEG) meeting & Conservation Paleobiology Symposium @ucl.ac.uk in London in August 2027, which aims to bridge spatial and temporal gradients between palaeontology, ecology, and conservation: www.ucl.ac.uk/mathematical...

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

Great way to start the week! Our notosuchian from Villaggio del Pescatore is out in @zoojlinnsoc.bsky.social: doi.org/10.1093/zool...
Congrats Marco Muscioni for another great PhD paper & to all the VdP team🥂🐊 Stay tuned for more croc news in the future! @piginatutu.bsky.social @es-ucl.bsky.social

Steve, Alessandro, Sam, Darren.

Sam and Darren.

Inside of Lightroom London with Prehistoric Planet Ice Age pics on walls.

More shots, we had such a great time. Here's me with Steve Zhang, @macroecoevoale.bsky.social and @splendidhand.bsky.social

So nice to see you on the big screen at the premiere, Tori! 🦣 🧊

Our paper re-evaluating the notosuchian Eremosuchus elkoholicus is out now! This work formed a chapter of my PhD thesis, and sheds some light on the complex evolutionary history of sebecid crocodyliforms 🐊🌎
@es-ucl.bsky.social

Happy Origin Day! Published OTD in 1859

#OnThisDay in 1859, Charles Darwin's landmark book 'On the Origin of Species' was first published. The work is one of the foundations of evolutionary biology, and one of the most important scientific works of the 19th century. #HistoryOfScience

A re-evaluation of the notosuchian crocodyliform Eremosuchus elkoholicus from the lower Eocene of Algeria and the evolutionary and biogeographic history of sebecids Notosuchian systematics have been highly debated in recent decades, particularly the placement of sebecids and closely related species. As the only notosuchian lineage to have survived the Cretaceo...

New paper on the notosuchian Eremosuchus by @piginatutu.bsky.social, co-authored by myself and @pdmannion.bsky.social among others out now!! We even find some cool evidence of replacement teeth in the dentary! www.tandfonline.com/doi/full/10....

Need a Xmas present idea? How about this delightful book, One Cosmic Rock, by @karenkrossing.com charmingly illustrated by @dreamist.bsky.social about the end of the dinos (I was lucky enough to be the consultant)

Top left: photograph of a fossil palaeomonid arthropod from Villaggio del Pescatore, Italy; the image in the bottom right corner has colours superimposed to illustrate the various features of the animal. Scale bar in the bottom right corner is 10 mm for both images. Specimen number: MCSNT 57057. Bottom left: a map of Italy, with the a region in the northwest shaded grey and enlarged on the right to show the location of the study area near Trieste.

An Upper Cretaceous arthropod assemblage from Villaggio del Pescatore (Campanian, Italy) & its implications for peri-Tethyan palaeobiogeography & palaeoecology onlinelibrary.wiley.com/doi/10.1002/... @macroecoevoale.bsky.social #PapersinPalaeontology

Great to have the chance to talk about the conservation palaeobiology of Cuban crocodiles at #2025SVP in Birmingham last week and also to see so many fantastic talks and posters from the other members of the @es-ucl.bsky.social palaeo group! 🦴🐊