Omar Rafael Regalado Fernández

Diversity of North American squamates across the K/Pg boundary.

Late Cretaceous squamates from DMNH Loc.3648 (a–aa) and early Palaeocene squamates from DMNH Loc.2560 (bb–dd).

"...regional extinction rate of between 75 and 84% for squamates in the Western Interior of North America and suggests this group was more severely impacted across the K/Pg boundary than other small-bodied vertebrates."
royalsocietypublishing.org/doi/10.1098/...
🧪 ⚒️ #Paleobio #EvoBio #Geology

Despite all of the threats and nasty messages I have received, I’ve actually received more notes of support and solidarity.

So I just wanted to take a moment amidst a hectic time to thank everyone who has reached out.

I don’t know when I will have the time to reply to everyone, but I intend to.

Rebuilding Gaza: don’t sideline Palestinian scientists, say experts Researchers warn against ‘top down’ solutions as ceasefire is agreed in the first phase of a peace deal.

Let Palestinians lead: Researchers warn against ‘top down’ solutions as ceasefire is agreed in the first phase of a peace deal.

www.nature.com/articles/d41...

There are hundreds of years of history of women’s scientific accomplishments not being recognised or being minimised (“not notable”). It *still* happens. Many female scientists are only acknowledged on Wikipedia thanks to the efforts of, yes, other female scientists, notably physicist Dr Jess Wade.

"Give me a Nobel Peace Prize or I attack your country" is a very bad strategy to win a Nobel Peace Prize

"Tell us where the talking lama is and we'll burn your house to the ground" level of bad.

A drawing of Protobalanus spinicoronatus, a flat oval-shaped mollusk with no distinct head and armored plates and also spikes on the body's edge.

A fossil 3D-scan of Protobalanus spinicoronatus, showing the oval-shaped body of the mollusk with armored plates and also a few spikes on the body's edge.

#paleoctober2025 day 9 : Protobalanus spinicoronatus !

Despite its name, this animal is a devonian mollusk, more specifically a basal polyplacophoran. You may know its current day relatives as little criters on the beaches called "chitons" (that are not slugs with shells nor crustaceans).

Open Access UCL Research: Identifying the Big Questions in paleontology: a community-driven project
discovery.ucl.ac.uk/id/eprint/10...

If you attend or work at a university in the UK, chances are you know someone who is on Indefinite Leave to Remain. Please consider what the recent attacks on ILR from both Reform and Labour are doing to those people you probably know.

I have little respect for El Chavo del Ocho. That SNL got El Chavo del Ocho wrong is just beyond me. And on top of that, I feel the need to defend it!

But then I remember it's a concept created so that the audience will be dormant as the fascist regimes in LatAm opressed us and then I let go

If you’re white, your accomplishments are your own and you can resent and criticize the country all you like, but if you’re black and successful you should be grateful to white people for allowing you in their presence. bsky.app/profile/jess...

I've been managing BHL's #Bluesky account for 4 months now. It's an honour to share such beautiful & significant content, particularly at this critical time. BHL's future is uncertain, but hopeful. Follow along @biodivlibrary.bsky.social & on the #BHLblog: blog.biodiversitylibrary.org/tag/transition

Hannah Cornish and Alice Holloway holding up a black drape behind UCL Grant Museum’s male gorilla skeleton ‘Hugo’ for some quick photos. They are smiling but their arms are screaming.

If you ever wondered how to photograph a gorilla skeleton without a studio …

I bought myself Outer Wilds this summer to treat myself and finally got to play it... Such a fun game!

A diagram showing four nodes connected by arrows in a cycle. "Paleontological community identifies research priorities as Big Questions" leads to "Use Big Questions to communicate relevance and importance of palaeontology" leads to "Secure funding, resources and staff to pursue Big Questions" leads to "Conduct research to generate more questions and inform society"

And this figure summarises how we hope this paper helps our community!

I tried to represent all major paleontological research areas through easter eggs in this flowchart.

Another years-long project I was a working group co-leader was published today as well!

Me, @lepidodendron.bsky.social and @rachelwarnock.bsky.social co-led the phylogenetics group and I had such a formative experience! ⚒️

www.cambridge.org/core/journal...

A wide angle photo showing wooden drawers piled up in metal shelves. They are a lot! Foto panorámica mostrando cajones de madera apilados en estantes de metal. Son un montón!

#FossilFriday
A 2-year-long project reaches the end. A new Cretaceous collection found a new home.

I don't care if their executives have green-cards, or if they know a lawsuit will fail in the courts. I want them spending their top dollar, used against small content creators, hiring expensive lawyers and wasting the fascists courts's time... Aversion to bad publicity? Too bad... Too fking bad...

Huh? No, no, if Nintendo, a super litigious company, doesn't enforce their IP protection when *checks notes* a fascist government uses it in fascist propaganda... Then it is added to the boycott list of this Mexican.

I am extremely happy to see that our review on fossil tip-dating is out in early view in Systematic Biology! A huge thanks to all the authors of this massive project (@heckeberg.bsky.social, @basantakhakurel.bsky.social, Gustavo Darlim, and @hoehna.bsky.social)! academic.oup.com/sysbio/advan...

African rock python skeleton articulated around a branch and temporarily suspended between coat racks. Which is the best use of coat racks ever.

Emilia Kingham holding branch with python skeleton before mounting in newly refurbished case. Alice Holloway crunching the numbers in distance.

Alice Holloway, Cyrus Shroff and Hannah Cornish ease python skeleton into case for positioning.

She’s up! Python skeleton hanging in case at UCL’s Grant Museum of Zoology.

So the answer to the question ‘how many people does it take to hang a python skeleton’ is five.

Spain's PM says he will send warship to protect Gaza aid flotilla Spain's Prime Minister Pedro Sanchez said on Wednesday he will join Italy in sending a military warship to protect an international flotilla seeking to deliver aid to Gaza after it was attacked by drones off Greece.

"Spain's Prime Minister Pedro Sanchez said on Wednesday he will join Italy in sending a military warship to protect an international flotilla seeking to deliver aid to Gaza after it was attacked by drones off Greece."

www.reuters.com/world/middle...

The Stupidest Speech in UN History Everyone's saying so!

The Stupidest Speech in UN History! “Everyone’s saying so,” writes @billmckibben.bsky.social

“the shots of delegates looking on in disbelief as Trump vented about broken escalators, MAGA hats, & his general greatness for nearly an hour (ignoring the 15min time limit…)”

Global embarrassment. Joke.

Quote this with your reaction to getting left behind

(and seeing all the bigoted disappointed millennial dispensalists pondering whether they were also left behind)

Hundreds of Alligator Alcatraz detainees drop off the grid after leaving site As of the end of August, the whereabouts of two-thirds of more than 1,800 men detained at Alligator Alcatraz during the month of July could not be determined by the Miami Herald.

Dropped off the grid?

In the colonised world often referred to as "the thirld world", we call that 'forced disappearance', a crime against humanity.

I guess this is the kind of concepts that are easier to identify if the perpetrator is not white? Rookie mistake

www.miamiherald.com/news/local/i...

Muere Mauricio Fernández Garza, el extravagante alcalde de San Pedro Garza García El político, empresario e ‘influencer’, ha fallecido este martes a los 75 años tras librar una lucha contra el cáncer

It is with great regret that I announce that he died... without facing any consequences for his actions.

– “El País. The extravagant mayor of San Pedro Garza García, dies."
elpais.com/mexico/2025-...

UCL Grant Museum from above showing empty vertebrate cases.

Empty fish case looking through to museum.

False gharial skeleton on newly-painted base.

Wondering why @uclgrantmuseum.bsky.social is closed this week? Case refurbishments and new displays on the way!

A display case layout planning. Labels placed next to bones of young and adult Edmontosaurus in a purple background.

The same room with dinosaurs as before but with purple lights all over. A seating area has been set up between the dinosaurs and in front of a letrine.

A dinosaur vertebra showing a lesion in the middle. Purple background.

There are lots of tiny fossils!

⚒️˚ ༘ 🦖𖦹🦕⋆🦪｡˚🍃

Here, a tale about the end of the Mesozoic in the colours of its beginning in the stratigraphic column: purple. You can always make purple work.

Poster for the new exhibition "Edmond, the last days of the dinosaurs" (in German). A closeup to an Edmontosaurus, also known as a duck-billed dinosaur, looking at the sky in a dark background.

A large hall with a tyrannosaurus and a triceratops skeleton (fore and back). Two skulls of Triceratops stand next to an open display case below a large skeleton projected on a wall (6 x 3 m).

A miniature of a Tyrannosaurus walking through the forest of swamp cypresses and fig trees.

A herd of a miniature Edmontosaurus (two young ones and two large adults), roaming in a riverbank.

Like Angela Bassett, I did the thing. I am knackered but yesterday morning I heard a group of 10 children screaming with excitement and suddenly everything was worth it.

Un símil de emoji de una carita de gato derritiéndose. Sus ojos desalineados y boca a medio caer

The video of the Scottish women at Thatcher's funeral has lived in my head rent free recently.

“Too bad! Too bad!"