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PaleoJim

@paleojim.bsky.social

State Paleontologist for Utah; exploring and promoting the history of life in our southwestern deserts for the public good and the wonder of it all

2,190 Followers  |  838 Following  |  1,026 Posts  |  Joined: 12.09.2024
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Posts by PaleoJim (@paleojim.bsky.social)

Assuming a 30-min commute to/from train station, 45-min to/from airport, 30-min early arrival for train and 90-min for plane, 500 mph plane (LAX-JFK is ~450), a 280 mph train is faster than flying any distance less than 950 miles.

Here is a 950-mile radius circle centered on Kansas City.

04.03.2026 13:43 β€” πŸ‘ 57    πŸ” 14    πŸ’¬ 3    πŸ“Œ 3
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Maybe it’s a bad idea to put people in charge of government who are eager for the rapture.

03.03.2026 12:04 β€” πŸ‘ 9177    πŸ” 3882    πŸ’¬ 831    πŸ“Œ 517
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It’s morning of day 1 of my shark field research skills class! Wish us luck, and let me know if you want to sign up for the fall! πŸ¦‘πŸ§ͺ🌎🦈

03.03.2026 12:14 β€” πŸ‘ 232    πŸ” 20    πŸ’¬ 13    πŸ“Œ 4
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Meet three scientists who said no to Epstein The warning signs included a web search, a mother’s doubts, and inklings of a β€œsexist attitude”

Many of the scientists Jeffrey Epstein courted were already well-established and well-funded. So why didn’t they all just say no? Science talked with three who did just that.

Here’s how Epstein approached them, and why they refused to have anything to do with him. ⬇️ https://scim.ag/40qbXnv

03.03.2026 14:30 β€” πŸ‘ 507    πŸ” 197    πŸ’¬ 20    πŸ“Œ 43
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WELL, DORKS! @timothysnyder.bsky.social says there is nothing more important than science and no one more important than scientists to establish a decent society and politics...which is why we are STANDING UP FOR SCIENCE on MARCH 7TH across the nation!

JOIN US! www.standupforscience.net/march7

03.03.2026 14:49 β€” πŸ‘ 407    πŸ” 126    πŸ’¬ 5    πŸ“Œ 3
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March 3, 2026 Total Lunar Eclipse in Salt Lake City, Utah, USA Start time, end time, animation, and detailed viewing information for the upcoming eclipse in Salt Lake City, Utah, USA

Total lunar eclipse from 4-5 AM this morning. www.timeanddate.com/eclipse/in/u...

03.03.2026 02:05 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

When I taught at the University of Nebraska, I fought with the National Arbor Day Foundation about planting all are good roadcuts!

02.03.2026 20:55 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Evolution of behaviors documented by trace fossils. @ichnologist.bsky.social

02.03.2026 15:54 β€” πŸ‘ 19    πŸ” 6    πŸ’¬ 0    πŸ“Œ 0
"Due North: Exploring Alberta's Northern Dinosaur Ecosystem, University of Alberta Palaeontological Society, Wednesday, March 4 5 - 7pm, ESB 1-39, University of Alberta." The background is a hadrosaur footprint from around Grande Prairie.

"Due North: Exploring Alberta's Northern Dinosaur Ecosystem, University of Alberta Palaeontological Society, Wednesday, March 4 5 - 7pm, ESB 1-39, University of Alberta." The background is a hadrosaur footprint from around Grande Prairie.

"Do Pre-Existing Conditions Prime the Earth for Mass Extinctions? Wednesday, March 5, Royal Tyrrell Museum Speaker Series 2026, Royal Tyrrell Museum of Palaeontology, RTMP auditorium (and zoom)" The background is an image of the badlands in southern Alberta along with a cut into the sides, revealing the K-Pg extinction layer.

"Do Pre-Existing Conditions Prime the Earth for Mass Extinctions? Wednesday, March 5, Royal Tyrrell Museum Speaker Series 2026, Royal Tyrrell Museum of Palaeontology, RTMP auditorium (and zoom)" The background is an image of the badlands in southern Alberta along with a cut into the sides, revealing the K-Pg extinction layer.

"Presentation Dino Dentist, Wednesday, March 5, 3 - 3:30pm, Royal Alberta Museum, Edmonton" The background is a closeup of the skeletal skull of a gorgosaurus

"Presentation Dino Dentist, Wednesday, March 5, 3 - 3:30pm, Royal Alberta Museum, Edmonton" The background is a closeup of the skeletal skull of a gorgosaurus

March 4, 5 - 7 pm: Exploring Alberta's Northern Dinosaur Ecosystem @ U of A
March 5, 11 am - 1 pm: Mass Extinctions? @ RTMP (and Zoom)
March 5, 3 - 3:30 pm: Dino Dentist (RAM)

albertapaleo.org/events/calen...

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#palaeontology #paleontology #fossils #dinosaurs #events

02.03.2026 14:28 β€” πŸ‘ 2    πŸ” 2    πŸ’¬ 1    πŸ“Œ 0

A good man to be piloting the ship in these stormy waters...

01.03.2026 15:07 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Looking forward to Utah Paleontological License Plates supporting paleo research in Utah. mail.google.com/mail/u/0/#in...
@utahpaleo-ufop.bsky.social @nhmu.bsky.social

28.02.2026 18:00 β€” πŸ‘ 17    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

πŸ§ͺ🏺 Update - authors have new paper showing how useless gen- #AI is for archaeological illustration.
All 400 images were multiply inaccurate (physically, socially, technologically, environmentally), even with improved prompts.

JUST USE HUMAN EXPERTS & ARTISTS

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

13.02.2026 18:09 β€” πŸ‘ 638    πŸ” 247    πŸ’¬ 27    πŸ“Œ 33
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In honor of Hans Dieter Sues a #FossilFriday, the big Kayentatherium that Hans built much of his dissertation around. Got to help excavate in July 1981 working for Farrish Jenkins and first met Hans, while he was working on the specimen at Harvard a few years later. @paleontologizing.bsky.social

28.02.2026 02:28 β€” πŸ‘ 46    πŸ” 9    πŸ’¬ 1    πŸ“Œ 0
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Cropping teeth of Utah's new Kayenta ornithischian, so for #FossilFriday Scutellosaurus lawleri. My pics of the original exhibit & gastondesign.com mount. Not the transition at base of tail from 2 rows of osteoderms across midline to 1 medial row running down the tail. @utahpaleo-ufop.bsky.social

28.02.2026 01:38 β€” πŸ‘ 29    πŸ” 8    πŸ’¬ 0    πŸ“Œ 0

That is the Southern Parkway connecting I-15 south of St George, Utah via a loop east of the city to the main road to Zion National Park. That entire region is being developed on top of a vast paleontology site dominated by tracksites & extensive archaeological sites by Virgin & Santa Clara Rivers.

27.02.2026 17:42 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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#FossilFriday A beautiful Cretaceous seastar. This fully articulated specimen of Calliderma was collected in the Chalk of England.

27.02.2026 08:36 β€” πŸ‘ 380    πŸ” 54    πŸ’¬ 3    πŸ“Œ 6
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Plesiosauria: A Systematic and Taxonomic Overview Comprehensive systematic and taxonomic overview of Plesiosauria, including valid taxa and nomina dubia based on recent data, with detailed taxon listings.

I’m excited to share a new project that I hope will be a valuable resource for the paleo community!

I'm working on a textbook about plesiosaurs and compiled a comprehensive overview of all currently valid plesiosaur taxa and some nomina dubia. 1/3
www.sachspal.de/plesiosauria/

#FossilFriday

27.02.2026 11:24 β€” πŸ‘ 77    πŸ” 26    πŸ’¬ 1    πŸ“Œ 0
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Paleo mitigation is important! The yellow star marks the most import Kayenta fossil site in Utah, plants, tracks, fish (whole and partial) abundant and diverse teeth (diverse dinos & crocs, pterosaurs). Sadly, the site is under a new highway & hill is gone forever. @utahpaleo-ufop.bsky.social

27.02.2026 04:45 β€” πŸ‘ 15    πŸ” 3    πŸ’¬ 1    πŸ“Œ 1
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Well for anyone that thinks mitigation is not important in paleontology. The yellow star marks the most import Kayenta fossil site in Utah, plants, tracks, fish (whole and partial) abundant and diverse teeth (diverse dinos & crocs, pterosaurs) We are documenting the 4th ornithischian in the E. Jur.

27.02.2026 01:15 β€” πŸ‘ 13    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0

Reporting 2 verts from Quarry 9 as alverezsaurid is a big deal, but I would strongly suggest that Quarry 9 is Kimmeringian in age and not latest Tithonian. Bet older than 150... Still very cool Pete, very cool! Cope's Nipple on west side of Denver Basin is Tithonian, I bet, but anything in Wyoming??

27.02.2026 01:10 β€” πŸ‘ 10    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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Utah teen vying for 'America's Most Artistic Kid' A Bountiful High School student is vying to win "America's Most Artistic Kid," a contest created by the well-known artist Bob Ross.

One of our younger members of Utah Friends of Paleontology kicking some butt with his artistic skills. cdn.jwplayer.com/previews/dE3... Nice to see! @utahpaleo-ufop.bsky.social @thestemvillage.bsky.social

27.02.2026 00:43 β€” πŸ‘ 14    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0
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Still looking for a preCloverly (Aptian or older, <118 Ma) ceratopsian. I'm thinking that the terminal Jurassic Morrison megafaunal extinction opened up some ecological niches.

26.02.2026 15:11 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

We plan to attend SVP'S town meeting today! Mentor, not molester! @societyofvertpaleo.bsky.social @utahpaleo-ufop.bsky.social

26.02.2026 15:03 β€” πŸ‘ 9    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0
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Episode #95, From Fossils 🦴 to Film πŸ“½ and the Science of Motion with Stuart Sumida, is out now!

Ray and Dave talk with vertebrate paleontologist Stuart Sumida about his work advising filmmakers and animators on how animals should move and behave.

πŸ”Š Listen now! www.paleonerds.com/podcast/stua...

25.02.2026 13:59 β€” πŸ‘ 11    πŸ” 6    πŸ’¬ 1    πŸ“Œ 0
Fossilized bones and skeletal diagram of a small dinosaur.

Fossilized bones and skeletal diagram of a small dinosaur.

New specimen of Alnashetri shows it to be a late-surviving non-alvarezsaurid alvarezsaur retaining unreduced forelimbs and representing an independent evolution of miniaturization: www.nature.com/articles/s41... πŸ§ͺ (πŸ“·Makovicky et al.)

25.02.2026 16:14 β€” πŸ‘ 41    πŸ” 8    πŸ’¬ 0    πŸ“Œ 1
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Argentine fossil rewrites evolutionary history of a baffling dinosaur clade - Nature A skeleton of the alvarezsauroid Alnashetri cerropoliciensisβ€”representing a highly complete alvarezsauroid skeleton from South Americaβ€”provides evidence on the evolution of the peculiar anatomy and mi...

Woah. Calamosaurus from the Wessex Formation reidentified as an alvarezsauroid... I'm reeling and certainly didn't see that one coming :) www.nature.com/articles/s41... #dinosaurs

25.02.2026 19:16 β€” πŸ‘ 101    πŸ” 25    πŸ’¬ 1    πŸ“Œ 1
Only $2400.

#TrilobiteTuesday

Only $2400. #TrilobiteTuesday

Only $2400.

#TrilobiteTuesday

@brianbrachiopod.bsky.social

25.02.2026 05:49 β€” πŸ‘ 8    πŸ” 4    πŸ’¬ 2    πŸ“Œ 0
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Great Basin Chapter in Salt Lake City will be hosting this year’s UFOP Annual Meeting. It will be held the weekend of August 28th – 30th. This will be a fun and rewarding weekend full of paleontology socializing, science talks, a banquet and field trips. Stay tuned...If only for the T-shirt!

24.02.2026 00:23 β€” πŸ‘ 9    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Great Basin March meeting Thurs. March 12th at 7:00 pm MT with Dr. David Smith, Northland Pioneer College. Dr. Smith’s talk is titled: "Uncovering the biology of therizinosaurs from the Upper Cretaceous of southern Utah" online meeting can be accessed through this link: meet.google.com/hzr-pkdu-wtp

23.02.2026 23:57 β€” πŸ‘ 5    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0