It's our last stream of the week! Join us for discussion of marine reptiles (like our ever-topical leatherback turtle!), mammal diversity (SO many rodent species!), and whatever else chat is curious about twitch.tv/paleontologizing

On a related note, @paleojim.bsky.social has been searching for this fossil coelacanth specimen for *years* and would appreciate any information on its whereabouts All he needs is a good CT scan of it to help understand fossil coelacanth relationships

MERRY #FISHMAS! It was on this day in 1938 that Marjorie Courtenay-Latimer made a discovery which would change the world — the first (non-fossil) coelacanth ever brought to the attention of science

I would have gotten it in like three fewer guesses if the game had all of the sub-clades programmed in 🙃 🐁 Animal #871 🪽 I figured it out in 6 guesses! 🟩🟩🟩🟩🟩🟩 🔥 11 | Avg. Guesses: 5.3 metazooa.com #metazooa

BEHOLD, the Paleontologizing Xmas tree in all its glory 🎄😲 Join us for fossil science Q&A, natural history camaraderie, paleontology news, and Thursday BIRDSday, right here on #Twitch twitch.tv/paleontologizing

Bringing that average guess count down a bit further 💪🏽 🫎 Animal #870 🐪 I figured it out in 4 guesses! 🟥🟧🟨🟩 🔥 10 | Avg. Guesses: 5.3 metazooa.com #metazooa

We're LIVE on #Twitch, and for today's stream we'll be interviewing Andrew Milner (@andrewtracks.bsky.social) about his fieldwork adventures, as well as recent discoveries at the Saint George Dinosaur Discovery Site. Join us @ twitch.tv/paleontologizing

We're talkin' FRESHWATER MOSASAURS, modern wildlife conservation, leatherback turtles, and whatever else chat is curious about on today's #Twitch stream. Get in here! twitch.tv/paleontologizing

Delivery! I got some awesomely unique paleo merch from the Badlands Dinosaur Museum (including the first postcard to feature my beloved Trierarchuncus) I'll put a link below to the shop 👇🏽

We were just talking about drunk raccoons, dawn dinosaurs, the wonder that is *turtles,* and other natural history miscellanea. Join us now for some #paleontology news and more on #Twitch twitch.tv/paleontologizing

We've got paleontological chat and Thursday BIRDSday on today's #Twitch stream, and you're invited to join us for fossil science Q&A and natural history camaraderie @ twitch.tv/paleontologizing

#T-shirtTuesday I have seen a lot of Utahraptor T-shirt designs, but BJ Nichols' design for the 2019 @utahpaleo-ufop.bsky.social meeting in Moab, Utah is still by far the best! @paleontologizing.bsky.social @jeremybroberts.bsky.social

I hear from @paleontologizing.bsky.social , I'll be interviewed live today,on twitch.tv/paleontologizing, Dec. 10th at 3:00 MT on Jurassic ankylosaurs and who knows what else. @utahpaleo-ufop.bsky.social @jeremybroberts.bsky.social @societyofvertpaleo.bsky.social @thepalass.bsky.social

SGDS Substation Paleo-salvage going well. So sad that UDOT took down signs on I-15 to tracksite site and visitation down 50% & people were laid off. Trying to be self-sufficient as public institution, you need help! Sign left on Green Spring Exit 10 off ramp points the wrong way. Ahhhh...come on!

We've got more #dinosaur Q&A on #Twitch right now (plus discussion of whatever natural history topics you're curious about), so tune in and chat with us! twitch.tv/paleontologizing

You are ABSOLUTELY NOT going to regret listening to this bird:

We're LIVE on #Twitch with #paleontology Q&A and chill natural history vibes Join us @ twitch.tv/paleontologizing

🏳️‍⚧️🏳️‍🌈I dream of the day when the world can become a place where transgender people can live proudly and freely as themselves, and where they can love freely As a mascot, I see human love as beautiful and wonderful. I love you all today as well♡

Lyme Regis ammonites for #FossilFriday! Visiting the hometown of Mary Anning, prospecting the same beaches she prospected, and just being in one of the places where paleontology first started to blossom — that was an incredible experience

BUSY stream today! We just interviewed Holly Anderson (@palaeophd.bsky.social) about her fieldwork adventures and taphonomy stories, and now we're gonna jump into #ThursdayBIRDSday before watching the 9th Annual Field Report from the Badlands Dinosaur Museum. Join us @ twitch.tv/paleontologizing

TOMORROW (Thurs, 8pm ET/6pm MT/5pm PT) Our Annual field report! Learn about fossil discoveries so new we're still cleaning them up in the lab! Live & FREE on Youtube, Facebook Live, & Twitch (FossilPreparator and @paleontologizing.bsky.social . Links in comms! #fossilfriday #dinosaurs #scicomm

It's a casual paleontology Q&A stream today on #Twitch, so bring your best fossil science questions -- and we'll check out some #paleontology news as well. twitch.tv/paleontologizing

We're LIVE on #Twitch with a stream focused on the #EndangeredSpeciesAct. Why is the ESA under threat right now -- and what can we do to save it? Join us to chat about this important topic (and revel in some natural history camaraderie at the same time) @ twitch.tv/paleontologizing

Doodles for Hong Kong (for @paleontologizing.bsky.social Trierarchuncus

😍

It might be a crude model — I whipped it together real quick last year — but when printed and coated with some flour to keep the dough from sticking, it works!

We're live *extra* early today, on account of an SVP leadership meeting I shouldn't miss this afternoon. Join us now for chill paleontology discussion and general science camaraderie twitch.tv/paleontologizing

Lokiceratops :D #paleoart #sciart #berensart2025

Yurac, M., Belvedere, M., Salazar, C. et al. Upper Jurassic dinosaur tracks from the Majala Formation in the Huatacondo area (Tarapacá Basin, Chile): reappraisal of known localities and new tracksite discoveries. Swiss J Palaeontol 144, 72 (2025). doi.org/10.1186/s133...

L. Xing et al. (2025) Grallatorid–eubrontid tridactyl track assemblages from Lower Jurassic, Sichuan Province, China: Insights into theropod diversity, locomotion and behavior Journal of Palaeogeography 100311 doi: doi.org/10.1016/j.jo... www.sciencedirect.com/science/arti...

Holiday gift idea 🧐 Support the Badlands Dinosaur Museum and get some superb paleo merch you can't get anywhere else

@paleontologizing.bsky.social makes science so much fun! We will be coloring this with our two kiddos this year ❤️🦃

Well, time yo translate this as well... Si a ustedes les gusta decirles a sus comensales en la cena de Acción de Gracias que el pavo es de hecho un dinosaurio, entonces @paleontologizing.bsky.social Danny Anduza tiene la infografía perfecta para ustedes. ¡Y yo les traigo la traducción al español!

If you're fond of telling your fellow Thanksgiving diners that the turkey is indeed a dinosaur, then I've got an infographic for you From the hips to the wishbone to the wrist joint, a turkey features SCADS of dinosaurian traits visible right there on your Thanksgiving table. Print and share!

With #Theropodsgiving tomorrow, we're talking all about the dinosaurian origin of avian features like feathers, wishbones, the avian respiratory system, and birds themselves! Tune in now for theropod-bird discussion and paleo camaraderie @ twitch.tv/paleontologizing

Not again Some rich dolt is going to pay *millions* for this thing, and how much of it is even real? I dearly wish the people who bid on these things would realize how much further that money would go in funding actual science. I'd name a new dinosaur after a donor www.youtube.com/watch?v=ol6s...

It's a casual Q&A stream today as we start to get into the Theropodsgiving spirit. Join us for paleontological discussion and fossil science camaraderie @ twitch.tv/paleontologizing

🚨 "If the proposal goes ahead, many staff will lose their jobs, crucial research will be shut down, and the future of undergraduate degrees is in jeopardy" 🚨 If they can gut paleo there, it can happen where you live, too 📣 SAVE PALEONTOLOGY AT LEICESTER 📣 SIGN THE PETITION! 📣

Leicester has long been one of the leading universities nationally for palaeontology & geology - this would be a terrible loss, as would the loss of other subjects such as modern languages: www.change.org/p/save-geolo...

Is this a #twitch multiverse? IT HAPPENED!!! @paleontologizing.bsky.social #2025svp

It's only open through January 11 (which I find surprising for so stellar an exhibition). Make sure you visit before then if you're in the area! www.nevadaart.org/art/exhibiti...

It's not often you see a paleontology exhibit in an art museum, but was thoroughly impressed with the clever presentation — especially the life-sized giant ichthyosaurs projected across the back wall. Mesmerizing. youtu.be/2hkwK3Bu3YY?...

Happy #FossilFriday! Here's an *enormous* ichthyosaur skull from the Triassic of Nevada, USA. This one might be a new species? I was lucky enough to see this at an awesome temporary ichthyosaur exhibit at the Nevada Museum of Art in Reno a couple months ago. Highly recommended

thanks so much for your awesome website @joeycato.bsky.social very fun concept and great execution!!

Later in the day, I'll be streaming with @paleontologizing.bsky.social to explain and answer all your questions, so, you're welcome to join!

I want to thank all my amazing coauthors -especially my mentor Darren Tanke (who first hypothesized the mating hypothesis in 1989 -DARREN, WE DID IT!-), the many institutions that helped me, and the paleoartist Emiliano Troco for the illustrations!

there are MANY "but", "if", and biological implications. The paper is published in OPEN ACCESS so you can read and give me your thoughts 😀

After this evaluation, we realize that the mating hypothesis was the one explaining the pathological pattern at best. The mounting male presses on the female tail, causing the vertebral lesions on top of the spine.

Knowing where we were going, we had to be sure. Or, at least, we had to consider EVERY OTHER SCENARIOS to explain what really looked like something related to sexual activity: predation, locomotion stress, strange and particular behavior, herd stepping... all of them were missing soemthing.

This is the condition for the tails we could check, we also have many other vertebrae in the dataset