John J. Jacisin III
@jjjacisin3.bsky.social
📤 310
📥 230
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Assistant Professor. Paleoherpetology, Conservation Paleobiology, and Geometric Morphometrics.
pinned post!
I have some good news: I have accepted a tenure -track position at the University of Wisconsin-Green Bay as their first paleontologist! I would love to connect with scientists, and especially paleontology/herpetology/wildlife folks in Wisconsin, Minnesota, Michigan, etc.
8 months ago
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Great Lakes Now
5 days ago
It's
#GarWeek
! Celebrate these living fossils by learning all about what makes this freshwater species known as "trash fish" so special in our latest conversation with
@solomonrdavid.bsky.social
.
www.youtube.com/watch?v=Nw84...
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Why Gars Deserve a Week of Their Own | Great Lakes Now
YouTube video by Great Lakes Now
https://www.youtube.com/watch?v=Nw845HhFS_A
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Steve Brusatte
5 days ago
What do we know about the last surviving dinosaurs, living right before the asteroid? And is Nanotyrannus a tiny tyrannosaur species or juvenile T. rex? Lindsay Zanno & I talk through the big questions with Ira Flatow on today's
@scifri.bsky.social
!
www.sciencefriday.com/segments/din...
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Were Dinos On Their Way Out Before The Asteroid Hit? Maybe Not
Two new studies suggest that, contrary to longstanding beliefs, dinosaurs were not on the decline before the Chicxulub asteroid impact.
https://www.sciencefriday.com/segments/dinosaur-population-asteroid-studies/
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John J. Jacisin III
John Logsdon
7 days ago
Our collaborative genome project is now published!
add a skeleton here at some point
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John J. Jacisin III
Dr. Earyn McGee
8 days ago
The
#FindThatLizard
Scholarship is accepting applications until 12/10. We fund girls, women, and gender non conforming persons pursuing herpetology🦎🐍🐸🐢 I can’t wait to read your application!
earynmcgee.com/findthatliza...
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Steve Brusatte
28 days ago
Interested in fossils? Brains? Reptiles? Want to study how reptile (particularly squamate) brains and senses changed over time? Want to be part of an international team studying the evolution of cognition? Then apply for our Univ of Edinburgh PhD project!
e5-dtp.ed.ac.uk/project?item...
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Project | E5 Doctoral Training Partnership | E5 Doctoral Training Partnership
The project advertisement
https://e5-dtp.ed.ac.uk/project?item=1785
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John J. Jacisin III
WitmerLab at Ohio University
2 months ago
Shaken to hear Mark Norell passed—good friend, trusted colleague, giant in our field. Coincidentally, I got the news as I was working on my talk for the Intl. Symp. on Asian Dinosaurs in Fukui later this month. Here's my slide on Mark’s impact on Asian dinosaur science. It hurt to add 1957–2025. 😥
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Andy Farke
2 months ago
I just heard the news that vertebrate paleontologist Mark Norell passed away. When I was a kid, I eagerly followed the latest discoveries by him & his team. Although I did not know Mark well, he was always helpful during my research visits to the AMNH. His biggest kindness, though, was early on. 1/2
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Steve Brusatte
2 months ago
We lost Mark Norell today. Dinosaur hunter extraordinaire. The coolest dude alive. My PhD supervisor. Wherever you are, raise a glass of your favorite lager or single malt, as it is what Mark would want.
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Eric Williams
3 months ago
incredible new national geological map for the U.S. just got released, mobile functional too, meaning you can get incredibly detailed geological information on the go, pretty fuckin' rad
www.usgs.gov/news/nationa...
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USGS Unveils New National Geologic Map
In a significant advancement for geoscience, the U.S. Geological Survey has released the most detailed national-scale geologic map of the country to date, offering a unique regional view of geology at...
https://www.usgs.gov/news/national-news-release/usgs-unveils-new-national-geologic-map
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John J. Jacisin III
Anat Belasen, PhD
5 months ago
I'm beyond excited to announce that I will be joining the School of Biological Sciences at the University of Oklahoma as an Assistant Professor in January 2026! Belasen Lab
@ou.edu
coming soon 🐸 ❤️
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Steve Brusatte
6 months ago
Instead of restoring American greatness, MAGA is destroying it. Science funding slashed in half. Earth science (my discipline) by 80%! Biology studies halted because some politician thinks 'biodiversity' is woke. Get used to slower economic growth, less innovation
www.nytimes.com/interactive/...
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Trump Has Cut Science Funding to Its Lowest Level in Decades
The lag in funding extends far beyond D.E.I. initiatives, affecting almost every area of science: chemistry, computing, engineering, materials and more.
https://www.nytimes.com/interactive/2025/05/22/upshot/nsf-grants-trump-cuts.html
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John J. Jacisin III
Trevor A. Branch
7 months ago
Hey
@bsky.app
can you please allow universities to verify their faculty? That would go a long way to promoting trust. I hope your list of verified people is not just sports stars and pop idols.
bsky.social/about/blog/0...
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A New Form of Verification on Bluesky - Bluesky
We’re introducing a new layer of verification — a user-friendly, easily recognizable blue check. Additionally, independent organizations can verify accounts directly through our Trusted Verifiers feat...
https://bsky.social/about/blog/04-21-2025-verification
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John J. Jacisin III
Emma Dunne
7 months ago
When
@mauritiantales.bsky.social
and I began leading this study, we never thought it would get 10 citations let alone the 200 it reached his week! But what started almost 5 years ago as a lockdown data project has taken us on an unimaginable rollercoaster... (1/n)
www.nature.com/articles/s41...
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Colonial history and global economics distort our understanding of deep-time biodiversity - Nature Ecology & Evolution
Analysing the global distribution, source and authorship of fossil research over the past 30 years, the authors find that researchers in high- or upper-middle-income countries hold a monopoly over pal...
https://www.nature.com/articles/s41559-021-01608-8
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Asher Elbein
8 months ago
My latest for
@nytimes.com
! Almost every iguana in the world is found in the Americas -- except for four species that live in the South Pacific, 5000 miles away. So how on earth did they get there? Well, y'all seen that movie "Flow?" 🧪🦎
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These Iguanas Got Carried Away and Ended Up in Fiji, 5,000 Miles From Home
Genetic evidence suggests that the reptiles somehow managed millions of years ago to make an ocean crossing from North America to Fiji.
https://www.nytimes.com/2025/03/17/science/iguanas-fiji-rafting.html
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John J. Jacisin III
Anat Belasen, PhD
8 months ago
Coauthors include
@ashieldsestrada.bsky.social
(recent UT PhD!),
@allyboville.bsky.social
(newly minted PhD candidate at UT@), and
@jjjacisin3.bsky.social
(incoming prof at UW Green Bay!) and many more not on bluesky
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John J. Jacisin III
Anat Belasen, PhD
8 months ago
This was a super fun collaboration with LOTS of students including folks from South America, led by UT Austin grad student Céline Carneiro, and co-senior authored by my postdoc mentor
@kzutaustin.bsky.social
and me! Make sure to peep our positionality statement <3
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John J. Jacisin III
Anat Belasen, PhD
8 months ago
Where are the global cold spots in genomic resources for amphibians and reptiles? And what can we do to ensure international collaborations are equitable? Check out our new Molecular Ecology paper, hot off the presses!
onlinelibrary.wiley.com/doi/10.1111/...
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Toward a Global Science of Conservation Genomics: Coldspots in Genomic Resources Highlight a Need for Equitable Collaborations and Capacity Building
Advances in genomic sequencing have magnified our understanding of ecological and evolutionary mechanisms relevant to biodiversity conservation. As a result, the field of conservation genomics has gr...
https://onlinelibrary.wiley.com/doi/10.1111/mec.17729
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I have some good news: I have accepted a tenure -track position at the University of Wisconsin-Green Bay as their first paleontologist! I would love to connect with scientists, and especially paleontology/herpetology/wildlife folks in Wisconsin, Minnesota, Michigan, etc.
8 months ago
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John J. Jacisin III
Dr. Jasmina Wiemann
9 months ago
Apply now for SVP’s Futures Award! 🦕 This award ($5,000 USD) is intended to support a summer research experience for current undergraduate students (incl. community colleges) who are Black, Indigenous, and/or members of other racial or ethnic minority groups! Link:
vertpaleo.org/svp-futures-...
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SVP Futures Award – Society of Vertebrate Paleontology
https://vertpaleo.org/svp-futures-award/
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John J. Jacisin III
ReBecca
9 months ago
I just found out that one of my former interns also lost their job last week. She is a perfect example of the kind of person you want doing science for our country, and now her work has been tossed to the side, like so many others - it’s sickening.
www.sltrib.com/opinion/comm...
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Voices: I lost my job because of Trump’s mass layoffs. What are Utah’s political leaders doing to stand up for people like me?
“Now, rather than paying income taxes in Utah and continuing to work sustaining the health of the federal lands that fuel Utah’s economy, I am applying for unemployment in Utah,” writes Dr. M. Allison...
https://www.sltrib.com/opinion/commentary/2025/02/21/voices-what-are-utahs-political/?fbclid=IwZXh0bgNhZW0CMTEAAR3p0trViH5f5CfO51llIcjCXKrnHiLFQkIwrTABQ9lUxtWprtpJhAHZOXc_aem_-rUN7HCppMnVXrY1us1oOw#
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John J. Jacisin III
Peter Falkingham
9 months ago
Announcing the rather epic 'Glossary of tetrapod tracks' in Palaeontologia Electronica. Three years of work led by Jens Lallensack, and with Guiseppe Leonardi (author of the original '87 Glossary). We hope it will be useful for anyone working on tracks
palaeo-electronica.org/content/2025...
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Glossary of tetrapod tracks
Glossary of fossil tetrapod tracks
https://palaeo-electronica.org/content/2025/5439-glossary-of-tetrapod-tracks
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Niles Eldredge
9 months ago
I am deeply saddened to have learned of the death, on Feb 5, 2025, of Elisabeth Vrba—a fantastically creative scientist and a warm, wonderful human being. She leaves us a legacy of original macroevolutionary thinking that is still fresh and illuminating.
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Dr. Advait M Jukar, FLS
9 months ago
Just learned that Elizabeth Vrba passed away last week. She was an intellectual giant in the field of paleobiology, and her work influenced the research programs of many a paleoecologist, including mine. I am sad that I never got to meet her in person. Rest in peace.
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John J. Jacisin III
David Shiffman, Ph.D. 🦈
10 months ago
I don't know who needs to hear this, but "scientists don't know everything and have been wrong before" does not mean that a random-ass conspiracy theory with no evidence should be given the same respect as the overwhelming weight of scientific evidence and expert consensus.
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Christina Areizaga Barbieri, Ph.D.
10 months ago
I’m an NSF panel reviewer that was scheduled to meet today. Just got notice that all NSF panels were canceled today. I reviewed some innovative proposals in support of students. Devastating if these scholars don’t get to do this work. For the love of science & students I hope this is just a delay.💔
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Liang-Kai Yu
10 months ago
Dear researchers in decolonisation and museum studies, I am working on a syllabus on decolonial museology. Do you have any recommendations? Any references, especially relating to Asian-Pacific context or digital fields, are super welcomed!!!
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Eric Scott
11 months ago
Wow! Turns out that the giant allosaurid dinosaur Saurophaganax maximus from Oklahoma is actually in part a diplodocid sauropod (!) ... while the remaining bits that *are* theropod represent a new species of Allosaurus! That's ... that's a lot. 😳
journals.library.ualberta.ca/vamp/index.p...
🦖🧪
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John J. Jacisin III
11 months ago
For a blog post on
#Tomography
flavored
#holidaycookies
! This handy "recipe" is a great reference when thinking about
#FAIROS
principles as they relate to your data. Thanks
#Findability
Working Group!
nocturnetwork.org/blog/nocturn...
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🍪 Holiday Spice Sugar Cookies 🍪 – NoCTURN
https://nocturnetwork.org/blog/nocturn-blog/findability/%F0%9F%8D%AA-holiday-spice-sugar-cookies-%F0%9F%8D%AA/
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John J. Jacisin III
Christina Belanger, Ph.D
11 months ago
If you are interested in using
#FossilSketch
in your
#geosciences
or
#paleontology
classes, just send us a note through
fossilsketch.org
. We are constantly developing new features and would love your feedback.
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https://fossilsketch.org
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John J. Jacisin III
Alex Gunderson
11 months ago
New work from the lab! Annelise Blanchette found that brown anole lizards may be the most lead (pb) tolerant vertebrate known to date by integrating physiological studies of field and lab exposed animals and transcriptomics
#urbanecology
#ecotox
#anolis
🦎 1/n
www.biorxiv.org/content/10.1...
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Extreme lead tolerance in an urban lizard
Lead (Pb) is an extremely toxic heavy metal pollutant pervasive in many environments with serious health consequences for humans and wildlife. Identifying organisms that can serve as biomonitors of le...
https://www.biorxiv.org/content/10.1101/2024.12.06.626998v1
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John J. Jacisin III
Dr. Jaimi Gray
11 months ago
New
#MiddleSchool
#Education
resource! Along with
@nocturnetwork.bsky.social
's Education & Outreach Team, I'm proud to share this science lesson ft.
#3Dmodels
made from
#CTscans
(some from my
#ForelimbHomology
collection + fun new ones!) Download via QUBEShub! 🦴🐒🦅🐍🦎🐧
qubeshub.org/publications...
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John J. Jacisin III
Christina Belanger, Ph.D
11 months ago
www.texastribune.org/2024/12/06/t...
“Now, as state lawmakers head back to the Capitol for the 2025 legislative session, they could limit the influence faculty have over campus culture and curriculum.” CURRICULUM…
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Texas lawmakers are scrutinizing university professors’ influence. Here's how faculty shape their universities.
Faculty senates have long played a key role in developing curriculum and protecting open inquiry. State leaders have also accused them of liberal indoctrination.
https://www.texastribune.org/2024/12/06/texas-university-faculty-senate-what-they-do/?utm_campaign=trib-social-buttons
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John J. Jacisin III
Titus Seilheimer
12 months ago
After decades, lake trout restored to sustainable levels in Lake Superior
#GreatLakes
www.wmuk.org/2024-11-20/a...
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After decades, lake trout restored to sustainable levels in Lake Superior
After the population of Lake Superior's top predator fish fell by 95%, the lake trout restoration effort has returned it to sustainable levels, researchers say.
https://www.wmuk.org/2024-11-20/after-decades-lake-trout-restored-to-sustainable-levels-in-lake-superior
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John J. Jacisin III
Center for Biological Diversity
12 months ago
Want to stay up-to-date on all things Center for Biological Diversity? Check our our new
#starterpack
featuring some of the fiercest advocates for wildlife, wild places, the climate, planet and more. Follow us here ➡️
go.bsky.app/JLmwHjV
add a skeleton here at some point
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John J. Jacisin III
Arlyssa D. Becenti
12 months ago
Navajo Nation is seeking congressional support in passing the Northeastern Arizona Indian Water Rights Settlement Act. I wrote this in August explaining how the settlement means more than just water for the San Juan Southern Paiute Tribe.
www.azcentral.com/story/news/l...
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'This is ours': After decades without a homeland, San Juan Southern Paiutes see hope
After living on borrowed land on the Navajo Nation, a new water settlement may give the San Juan Southern Paiutes their own home.
https://www.azcentral.com/story/news/local/arizona/2024/08/16/water-settlement-includes-reservation-lands-for-southern-paiute-tribe/74790156007/
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Sandy Kawano, PhD
about 1 year ago
Join the
#FinsAndLimbs
lab in Washington, DC, USA! We study the comparative biomechanics, physiology, and functional morphology of locomotion in
#fishes
and
#herps
🐟🧪🦎. We are hoping to recruit two
#PhD
students to start in Fall 2025! Link to full recruitment ad:
drive.google.com/file/d/1m_HB...
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John J. Jacisin III
Professor Anjali Goswami FRS
12 months ago
I couldn’t find a starter pack for POCs working in STEM, so I started one myself - my network here is still small and I didn’t want to assume how people identify, so please reply or DM me if you want to be added!
go.bsky.app/BJkKQVR
add a skeleton here at some point
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