iiinova — where your digital self keeps evolving

Dr. Jasmina Wiemann @jwiemann.bsky.social · 22/09/2026

Delighted as always to join @dkskelly's class focused on the transformative potential of museum collections! 🦕 #fossils #museums #biosignatures

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Dr. Jasmina Wiemann @jwiemann.bsky.social · 22/09/2026

New paper involving @marihaase led by Araújo et al. on histological inferences of the metabolic performance and thermoregulatory strategy of a tapejarid pterosaur. Out now in Paleobiology: www.cambridge.org/core/journal...

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Reposted by Dr. Jasmina Wiemann

Johns Hopkins Arts & Sciences @jhuartssciences.bsky.social · 17/09/2026

A new study puts T. rex's body temperature close to our own, around 97 degrees. Johns Hopkins paleobiologist @jwiemann.bsky.social says it complements her own 2022 research into dinosaur metabolism. www.scientificamerican.com/article/t-re...

scientificamerican.com

T. rex was as warm-blooded as humans, new study finds

The dinosaurs were once considered reptilian, but the new results suggest we may need to rethink their evolution

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Dr. Jasmina Wiemann @jwiemann.bsky.social · 07/07/2026

Unstoppable! Here is yet another paper published today involving Pjotr Meyvisch: this time, the team integrated ATR-FTIR and tools from microbiology to illuminate the life cycle of a cosmopolitan dinoflagellate causing harmful blooms. #spectroscopy #oceans #microbiology

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Dr. Jasmina Wiemann @jwiemann.bsky.social · 02/07/2026

New paper on #biosignatures involving one of our lab members: Congrats to my brilliant postdoc Pjotr Meyvisch for using vibrational #spectroscopy to place enigmatic Multisphaeridium-type #acritarch #fossils in the tree of Life! ➡ It's a chytrid! What an elegant approach to phylogeny ...

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Dr. Jasmina Wiemann @jwiemann.bsky.social · 16/06/2026

✅ Both of your postdocs have their super fancy, lead-authored papers submitted, just in time for the next PI grant & faculty job cycle! 🤩 #paleontology #evolution #globalchangebiology #oceanography #fossils #microbiology #geochemistry #biosignatures

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Dr. Jasmina Wiemann @jwiemann.bsky.social · 11/05/2026

Join us at AbSciCon and/or reach out for opportunities in the lab! Here's the link to our lab homepage: www.jasminawiemann.com

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Dr. Jasmina Wiemann @jwiemann.bsky.social · 25/04/2026

It's time to move into our labs! 🤩

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Dr. Jasmina Wiemann @jwiemann.bsky.social · 09/04/2026

New paper out by Izidio et al., involving @marihaase: Crocodylomorph dietary versatility has implications for metabolic capacity ... if we could just extract metabolic signals from teeth 🐊 Link: www.tandfonline.com/doi/full/10....

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Dr. Jasmina Wiemann @jwiemann.bsky.social · 05/04/2026

Happy Easter: Here are some Easter egg color ideas - based on our reconstructions of dinosaur egg colors! Not all dinosaurs laid hard-shelled eggs though, and we will update and expand this list soon thanks to brilliant research with @marihaase! 🐰🐣🌷 #easteregg #dinosaurs #DIY #paleoart

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Dr. Jasmina Wiemann @jwiemann.bsky.social · 27/03/2026

Huge congrats to @miller_m_l for passing the DQE - Rock on!

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Dr. Jasmina Wiemann @jwiemann.bsky.social · 16/03/2026

Lab renovations are almost finished!

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Dr. Jasmina Wiemann @jwiemann.bsky.social · 12/02/2026

I am heartbroken to learn to George Rossman has passed away - George was not only a brilliant chemist turned geoscientist, but also had an exceptionally good taste in methods - Raman + FT-IR spectroscopy - and cookies ... [1/3] www.gia.edu/gia-news-pre...

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Dr. Jasmina Wiemann @jwiemann.bsky.social · 11/02/2026

Happy International Women and Girls in Science Day from our team here at Hopkins! #internationalwomenandgirlsinscienceday

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Dr. Jasmina Wiemann @jwiemann.bsky.social · 06/01/2026

How did animal biominerals evolve and what is the [yet] unrealized evolutionary potential of skeletons? Curious? Join me for my talk at #sicb 2026 today at 2.30 pm in B112!

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Dr. Jasmina Wiemann @jwiemann.bsky.social · 04/01/2026

When and how did avian-style endothermy evolve? In #dinosaurs, or #archosaurs, or even archosauromorphs? Merging genomics and #geochemistry provides new phylogenetic, temporal, and mechanistic constraints! Join us tomorrow [#SICB] at 8 am for Megan's ground-breaking new data!

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Reposted by Dr. Jasmina Wiemann

Packard Foundation @packardfdn.bsky.social · 05/12/2025

Packard Fellow and Johns Hopkins University scientist Dr. Jasmina Wiemann is working to understand how living organisms respond to planetary change by developing innovative ways to read molecular “memories” preserved in ancient organisms—helping fill some of the blank pages in the history of life.

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Dr. Jasmina Wiemann @jwiemann.bsky.social · 14/12/2025

Wrapping up 2025 with our first lab datathon - go team! 🤩 With PJ 🔬, Liam🐚, Megan🐣, & Mariana🐊!

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Dr. Jasmina Wiemann @jwiemann.bsky.social · 18/11/2025

Excited to announce our session at AbSciCon 2026! We welcome abstracts covering topics across #Paleontology, #Geobiology, #Chemistry, #genomics, #evolution, #astrobiology, #biosignatures, #molecularpaleobiology. It's a fun and very interdisciplinary conference! Join us in Madison, WI, in 2026!

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Dr. Jasmina Wiemann @jwiemann.bsky.social · 17/11/2025

I'm delighted to share the latest publication involving my lab - out now in PNAS: Geochemists & Paleontologists across the globe joined forces to confirm the preservation of molecular #biosignatures in #fossil organic matter - and explore signals associated with photosynthesis.

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Reposted by Dr. Jasmina Wiemann

Palaeoverse @palaeoverse.bsky.social · 24/10/2025

Currently looking for a postdoctoral position and interested in this kind of research? 👀 Dr Hagen currently has an open position in his new Computational Integrative Biodiversity group at Goethe University Frankfurt, for more details see: www.uni-frankfurt.de/48794987/Zen...

uni-frankfurt.de

Goethe-Universität — Zentrale Einrichtungen

Die Goethe-Universität ist eine forschungsstarke Hochschule in der europäischen Finanzmetropole Frankfurt. Lebendig, urban und weltoffen besitzt sie als Stiftungsuniversität ein einzigartiges Maß an E...

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Dr. Jasmina Wiemann @jwiemann.bsky.social · 24/10/2025

Join my brilliant grad student Megan and me [representing @Hopkins_PaLEO] in the 'Ancient Biomolecules' symposium at SVP 2025 in Birmingham! Prospective grad students and postdocs looking for opportunities in Molecular Geo-, Astro-, Paleobiology, catch me after my talk!

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Dr. Jasmina Wiemann @jwiemann.bsky.social · 17/10/2025

If you are planning to attend GSA Connects 2025 by @geosociety.bsky.social next week, stop by the 'New Advances in Geobiology' session! I will be talking about the evolution of skeletons as revealed by fossil biomolecules and biosignatures 🔬🧪🧬! #paleontology #fossils #astrobiology

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Reposted by Dr. Jasmina Wiemann

Denis Wirtz @deniswirtz.bsky.social · 15/10/2025

Prof. Jasmina Wiemann has been selected for a prestigious Packard fellowship. This the first recognition of a paleobiologist by the Foundation! That is 8 Packard Fellows in 6 years for Johns Hopkins University. Prof. Wiemann's website is the stuff of movies: www.jasminawiemann.com

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Dr. Jasmina Wiemann @jwiemann.bsky.social · 15/10/2025

I’m thrilled to be a part of the 2025 class of #PackardFellows and I look forward to all the exciting & actionable discoveries at the interface of evolutionary biology, ecology, the geosciences, and chemistry that this award enables! @jhuartssciences.bsky.social www.packard.org/2025fellows

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Dr. Jasmina Wiemann @jwiemann.bsky.social · 19/09/2025

We have a new paper out - spearheaded by the brilliant Madison Tripp and Kliti Grice at Curtin in Western Australia: Biomarkers preserve exceptionally well in diagenetic carbonates rather than phosphates. #paleontology #astrobiology #geochemistry Link: onlinelibrary.wiley.com/doi/10.1111/...

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Dr. Jasmina Wiemann @jwiemann.bsky.social · 28/08/2025

I am very much looking forward to join my brilliant colleagues of the Ancient Biomolecular Lab @amnh next week to talk about frontiers in ancient biomolecular research! We will also discuss the current momentum in the field and the remaining big, open questions!

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Dr. Jasmina Wiemann @jwiemann.bsky.social · 19/08/2025

SVP 2025 abstract decisions are out: I am very excited to share that I will talk about how machine-learning applied to modern and #fossil biomolecules transforms our understanding of the early evolution of the vertebrate (+ outgroup) biomineralization toolkit! [1/2]

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Dr. Jasmina Wiemann @jwiemann.bsky.social · 19/08/2025

Planning to attend SVP 2025? Don't miss Megan's talk on her new approach to integrating molecular #fossils preserved in the rock record and in genomes! As a 1st-year JHU PhD student in EPS, she just won the Steven Cohen Award for her creative spin on Paleobiology! @jhuartssciences.bsky.social

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Dr. Jasmina Wiemann @jwiemann.bsky.social · 13/08/2025

Imagine you could not only chemically characterize individual molecules, but also simultaneously visualize them - in their biological framework or at mineral surfaces ... my AFM UV|Vis|NIR-Raman spectroscopy lab is officially operational, and the first data exceeded expectations! #biosignatures

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Dr. Jasmina Wiemann @jwiemann.bsky.social · 03/08/2025

I'd be delighted to sponsor a NASA Postdoc Fellowship focused on #biosignatures, #astrobiology, or the Origin of Life here at Hopkins! 🚀

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Dr. Jasmina Wiemann @jwiemann.bsky.social · 30/07/2025

Raman main system installation: All bits and pieces are assembled! Time for our first samples - until we add the Atomic Force Microscopy-module for Plasmonic and co-localized AFM-Raman next week!

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Dr. Jasmina Wiemann @jwiemann.bsky.social · 17/07/2025

What a week: ✅ Wrap up 2 fun papers ✅ Receive 3-D Printers ✅ Hire awesome postdocs ✅ Win new funding for the lab ✅ Rig 8 ft x 5 ft optical table Next: ⬜ Install AFM UV/Vis/NIR Raman [11 days to go!]

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Dr. Jasmina Wiemann @jwiemann.bsky.social · 15/07/2025

I am endlessly excited to welcome Mariana and Pjotr to Hopkins! Our entire team is thrilled to have you on board - let's push the limits of the fossil record! 🤩 #evolution #paleontology #fossils #biosignatures #astrobiology

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Dr. Jasmina Wiemann @jwiemann.bsky.social · 03/07/2025

I picked up the current Re-issue of 'Reimagining #Dinosaurs' in @ National Geographic - just in time for #JurassicWorldRebirth! Our research is still as exciting as it was 4 years ago, but my lab is now proudly based @jhuartssciences.bsky.social [with co-featured Fabbri, Balanoff, & Bever labs].

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Dr. Jasmina Wiemann @jwiemann.bsky.social · 20/06/2025

I am star-struck to discuss recent progress on biomolecule and #biosignature preservation alongside so many legendary scientists in this C&EN feature: From #dinosaurs to the tree of life! So proud of the contributions from my lab @jhuartssciences.bsky.social! Link: pubs.acs.org/doi/full/10....

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Dr. Jasmina Wiemann @jwiemann.bsky.social · 20/06/2025

Reposting this brilliant summary of the current state of knowledge on protein preservation in deep time by @matthewcollins.bsky.social - holistic assessments of decay and stabilization kinetics are the way to go! #FossilFriday #dinosaurs #biosignatures

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Dr. Jasmina Wiemann @jwiemann.bsky.social · 23/05/2025

Congratulations to 1⃣-year PhD student Liam Olden for finishing a fantastic year with a funded field work grant [🏔️] and admission to the International Geobiology Course [🦠]! Enjoy your summer museum trips and field adventures!😊 #geobiology #paleontology #biosignatures

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Dr. Jasmina Wiemann @jwiemann.bsky.social · 23/05/2025

Congratulations to 1⃣-year PhD student Megan Miller for finishing a fantastic year with 2 impressive discoveries [🐭🐣], a funded museum grant [🦴] and a very fancy and well-deserved #paleontology award [🦕]! Enjoy your unix summer adventure 💻☀️ #genomics #biosignatures

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Dr. Jasmina Wiemann @jwiemann.bsky.social · 10/05/2025

A belated thanks to the University of Maryland Geology Department and @arctomet for inviting me to talk about #biosignatures and #fossils! I really enjoyed my visit and I look forward to working with you all in the future! 🦕🦖🐣

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Dr. Jasmina Wiemann @jwiemann.bsky.social · 26/04/2025

I am absolutely ecstatic to announce our Symposium (No. 28) 'Bridging the Molecular Gap' at the 7th International Paleontological Congress, hosted by our amazing colleagues in Cape Town, South Africa! Please check out the program and join us in December 2026! Program link: ipc7.site/programme.html

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Dr. Jasmina Wiemann @jwiemann.bsky.social · 24/04/2025

If you're still looking for inspiration on how to dye your #Easter Eggs, I would love to draw your attention to our updated chart of #dinosaur egg colors! 🦕🦖🐣🥚🟠🔵

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Dr. Jasmina Wiemann @jwiemann.bsky.social · 30/03/2025

Inspiration for my fall term classes!

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Dr. Jasmina Wiemann @jwiemann.bsky.social · 17/03/2025

Excited to share my latest thoughts in @nature.com: From the discovery of fossilized #dinosaur cells to the translational application of time-integrated #biosignatures! 🦕🧬🚀 Explore the fate of biomolecules through time - here: rdcu.be/edUZR #astrobiology #paleontology @JohnsHopkins

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Dr. Jasmina Wiemann @jwiemann.bsky.social · 16/03/2025

I'm delighted to see so many women on the top 40 paleontology science communication list - and I'm very humbled to be part of it (as a full time scientist)! 😊 Always happy to share fascinating research from #molecularpaleobiology ... Link: influencers.feedspot.com/paleontology...

influencers.feedspot.com

Top 40 Paleontology Influencers in 2025

Looking for Paleontology Influencers for your outreach campaign or for collaboration to promote your brand or product? Check out our list of Top Paleontology Influencers

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