Dr. Sven N. Nielsen's Avatar

Dr. Sven N. Nielsen

@snnielsen

geologist, paleontologist, malacologist Professor @ Universidad Austral de Chile

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22.11.2024
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Latest posts by Dr. Sven N. Nielsen @snnielsen

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FT comments section this morning - saying what everyone else is thinking, right?

05.03.2026 07:15 ๐Ÿ‘ 17120 ๐Ÿ” 5972 ๐Ÿ’ฌ 514 ๐Ÿ“Œ 493

I just heard that Carlos Moreno passed away today. Carlos was a pioneer in Chilean marine biology. I never worked with him but knew him as an esteemed colleague and person.

04.03.2026 21:14 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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That sounds bad, but hopefully turns out good: cheers! en.wikipedia.org/wiki/Fucking...

03.03.2026 19:49 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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Methods for knowledge-based biodiversity monitoring and management under uncertainty (BioM) - UiO:Life Science BioM develops new interdisciplinary methods to model and govern biodiversity under uncertainty, combining ecology, statistics, and philosophy. The project delivers predictive tools, normative framewor...

2 PhD & 1 postdoc available at BioM in Oslo
www.uio.no/english/rese... Interdisciplinary methods to model and govern biodiversity under uncertainty. Re-post widely! Work with statistical ecologists Olav Skarpaas (Natural History Museum Oslo @uio.no) @t-ergon.bsky.social

28.02.2026 14:10 ๐Ÿ‘ 17 ๐Ÿ” 25 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Post a pic you took, no context, to bring some zen to the feed.

28.02.2026 19:44 ๐Ÿ‘ 2 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 3

A big THANK YOU to the Field Museum for ensuring BHL continuity

27.02.2026 21:42 ๐Ÿ‘ 4 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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๐Ÿ“ข Our February newsletter is now available!

Explore the latest updates, opportunities, and community news from across PAGES ๐ŸŒ

Read more ๐Ÿ‘‰ pastglobalchanges.org/news/138880

#PAGES #Paleoscience

26.02.2026 15:57 ๐Ÿ‘ 3 ๐Ÿ” 2 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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In 2025 the normally predictable upwelling in the Gulf of Panama failed to appear - the first time since our records began 40 years ago (www.pnas.org/doi/10.1073/pnas.2512056122I).
We are studying the gulf carefully to see what will happen in 2026. Will it also fail or was 2025 a one-off?

15.01.2026 15:14 ๐Ÿ‘ 17 ๐Ÿ” 3 ๐Ÿ’ฌ 2 ๐Ÿ“Œ 0
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This is the most incredible footage of blue whales Iโ€™ve ever seen

22.02.2026 08:55 ๐Ÿ‘ 6915 ๐Ÿ” 2267 ๐Ÿ’ฌ 98 ๐Ÿ“Œ 417

Unfortunately, I do not know Tartu. The other three are all very beautiful and different ๐Ÿ˜

21.02.2026 17:00 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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The Paleontological Society statement on recent events.

21.02.2026 03:13 ๐Ÿ‘ 79 ๐Ÿ” 25 ๐Ÿ’ฌ 3 ๐Ÿ“Œ 2

Hay un trabajo de Beatriz Aguirre-Urreta (1990) con muy malas imรกgenes. Lo tengo en la oficina y lo puedo revisar en unas dos semanas. No recuerdo a que grupo atribuye el material argentino

14.02.2026 15:15 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Buena! Estรกn trabajando la morfologรญa tambiรฉn? Reencontrรฉ mi material fรณsil, que puede pertenecer al grupo.

06.02.2026 17:07 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

I'd love to see you in it! It would mean A) to see you, B) be at WCM and C) get to see the shirt as a bonus ๐Ÿ˜

06.02.2026 16:56 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

Cimomia haltomi, a beautiful Paleocene nautiloid. Gotta love nautiloids.

06.02.2026 16:49 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Stability and precision in chronostratigraphic definition: The Global Boundary Stratotype Section and Point (GSSP) is the solution The concept of the Global Boundary Stratotype Section and Point (GSSP) to define the bases of chronostratigraphic units, indicated by a spike in rock,โ€ฆ

Very nice and useful review about Global Stratotype Sections and Points (GSSP) ๐Ÿงช
www.sciencedirect.com/science/arti...

28.01.2026 14:52 ๐Ÿ‘ 2 ๐Ÿ” 1 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Thank you AGU for the courage to report on this.

25.01.2026 15:05 ๐Ÿ‘ 4 ๐Ÿ” 2 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
A LinkedIn post from my profile, reading: โ€œIt's a very simple equation, really: Science communication needs to be accurate, it needs to be authentic, and it needs to be transparent. If you're not doing it that way, you're not doing science communication at all.
In addition, *good* science communication is inclusive, it's ethical, it's sustainable. If you're not heeding these things, you're not doing science communication right.
Which is why I am profoundly shocked by ostensibly reasonable people promoting the use of chatbots for science communication. Their use decreases factual accuracy. It decreases transparency. It decreases authenticity. Those things are true regardless of *which* chatbot you're using and regardless of *how* you're using it. Plus, the tech is not sustainable, not inclusive, not ethical.
The promotion and use of Al chatbots is already damaging science communication and, if taken to the extreme, will be capable of quickly destroying it. Not through the rise of evil Al, but through ignorance on part of the users, rapidly destroying the trust that science communicators have been able to build over decades.
Everything I will ever publish will be written by humans, and by humans only. If science communication goes the way of the robots, it will go there without me.โ€

A LinkedIn post from my profile, reading: โ€œIt's a very simple equation, really: Science communication needs to be accurate, it needs to be authentic, and it needs to be transparent. If you're not doing it that way, you're not doing science communication at all. In addition, *good* science communication is inclusive, it's ethical, it's sustainable. If you're not heeding these things, you're not doing science communication right. Which is why I am profoundly shocked by ostensibly reasonable people promoting the use of chatbots for science communication. Their use decreases factual accuracy. It decreases transparency. It decreases authenticity. Those things are true regardless of *which* chatbot you're using and regardless of *how* you're using it. Plus, the tech is not sustainable, not inclusive, not ethical. The promotion and use of Al chatbots is already damaging science communication and, if taken to the extreme, will be capable of quickly destroying it. Not through the rise of evil Al, but through ignorance on part of the users, rapidly destroying the trust that science communicators have been able to build over decades. Everything I will ever publish will be written by humans, and by humans only. If science communication goes the way of the robots, it will go there without me.โ€

LinkedIn probably wasnโ€™t the best channel to post this, but I stand by it

26.01.2026 06:23 ๐Ÿ‘ 1085 ๐Ÿ” 271 ๐Ÿ’ฌ 29 ๐Ÿ“Œ 13
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Some guest editors pack special issues with their own articles Thousands have penned more than one-third of a journal issue, raising conflict-of-interest concerns

"Publishers have an economic incentive to accept even
subpar papers authored by guest editors, the researchers write, because guest editors work for free and recruit other authors to contribute to special issues."

Happy #MolluscMonday ๐Ÿš and careful of some special issues ๐Ÿ™‚

26.01.2026 13:30 ๐Ÿ‘ 2 ๐Ÿ” 1 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

The call for nominations for the WoRMS Top Ten Marine Species 2025 is now closed.

The #toptenmarinespecies of 2025 will be announced on #taxonomistappreciationday (March 19th).

26.01.2026 14:09 ๐Ÿ‘ 3 ๐Ÿ” 1 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Help name a new deep-sea chiton species Researchers have recently identified a new species of chiton. Now, in an effort to bridge the gap between deep-sea exploration and public engagement, the team from the Senckenberg Ocean Species Allian...

๐Ÿ˜ฎ Help name a new species!

Found 5,506m deep in the Izu-Ogasawara Trench, this #deep-sea #chiton needs a #scientific name.

๐Ÿ™ŒWeโ€™re teaming up with @zefrank.bsky.social and @oceanspecies.bsky.social (SOSA) to let YOU decide!

๐Ÿ‘‰Comment your name idea + 1 sentence explaining why.

@sgn.one

27.01.2026 07:35 ๐Ÿ‘ 14 ๐Ÿ” 6 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
Temporal trends in coastline geometry and extinction risk across the Phanerozoic.

Temporal trends in coastline geometry and extinction risk across the Phanerozoic.

Interesting article exploring the role of the shapes of paleogeographies of coastlines as determinants of the extinction risk:
"Taxa...that occur along east-westโ€“ oriented coastlines, islands, or inland seawaysโ€”consistently exhibit higher extinction risk"
www.science.org/doi/full/10....
๐Ÿงชโš’๏ธ #Paleobio

27.01.2026 08:05 ๐Ÿ‘ 19 ๐Ÿ” 8 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 2

I love the naglfari suggestion

27.01.2026 12:33 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Thanks for posting this. Cool idea :)

27.01.2026 02:04 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

More mollusks: chitons belong in the class Polyplacophora. Modern ones always have 8 plates when adult, but there are fossil multiplacophorans with many more ๐Ÿงช

27.01.2026 01:50 ๐Ÿ‘ 11 ๐Ÿ” 1 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

More mollusks. Belemnites, apart from the chemical standards, are also used for biostratigraphy. They are cephalopods, squiddies with an internal shell ๐Ÿงช

27.01.2026 01:45 ๐Ÿ‘ 8 ๐Ÿ” 1 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Indeed. I also thought first: what? about 8m?

27.01.2026 01:41 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Just saw the notice that abstracts are now open for the 7th International Palaeontological Congress (IPC7) on 30 November โ€“ 3 December 2026 in Cape Town, South Africa. I'm really hoping to attend this year. Looks like it'll be a fantastic meeting!

25.01.2026 16:39 ๐Ÿ‘ 3 ๐Ÿ” 2 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Very cool paper on shark and ray diversity since Cretaceous times ๐Ÿงช

23.01.2026 21:50 ๐Ÿ‘ 11 ๐Ÿ” 4 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 1