µ-CT, 3D Morphology, Zoology, Paleontology. Research Specialist & CT Lab Manager, Museum of Zoology @UMich. MSc @UCalgary. HBSc @UofT. he/him

Ann Arbor, MI
Joined June 2010
Scientists CT-scanned thousands of natural history specimens, which you can access for free Natural history museums have entered a new stage of scientific discovery and accessibility with the completion of open Vertebrate (oVert), a five-year collaborative project among 18 institutions to create 3D reconstructions of vertebrate specimens and make them freely available online. The project is led by the @FloridaMuseum of Natural History and includes several biologists from the University of Michigan. A paper summarizing the project and its impacts was published online March 6 in the journal BioScience. Natural history museums got their start in the 16th century as cabinets of curiosity, in which a few wealthy individuals amassed rare and exotic specimens, which they kept mostly to themselves. Since then, museums have become a resource for the public, with exhibits that showcase biodiversity for anyone interested in learning about it. However, most natural history collections remain behind closed doors, accessible only to scientists who must either travel to see them or ask that a small number of specimens be mailed on loan. The research team behind oVert wants to change that. “If you require someone to get on a plane and travel to you to collaborate, that’s prohibitive in a lot of ways,” said David Blackburn, principal investigator of the oVert project and curator of herpetology at the Florida Museum of Natural History. “Now we have scientists, teachers, students and artists around the world using these data remotely.” Between 2017 and 2023, oVert project members took CT scans of more than 13,000 specimens, with representative species across the vertebrate tree of life. This includes more than half the genera of all amphibians, reptiles, fish and mammals. More than 1,600 specimens from @umichLSA's Museum of Zoology collections were scanned as part of the #oVertTCN project—mostly mammals, reptiles, amphibians and fish, along with a few birds. The museum also scanned several hundred specimens for partner institutions. “The University of Michigan Museum of Zoology is the home to some of the largest collections of vertebrates in the world. We were able to utilize those collections and our own in-house CT scanner to produce 3D models of thousands of our voucher specimens, as well as material from collaborating collections,” said Cody Thompson (@codythompson51), mammal collections manager and associate research scientist at #UMMZ. The other U-M co-authors of the @AIBSbiology BioScience paper are Alison Davis Rabosky, Ramon Nagesan, Daniel Rabosky and Gregory Pandelis. Learn more: news.umich.edu/scientists-ct…
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Natural history museums have entered a new stage of scientific discovery and accessibility with the completion of open Vertebrate (oVert), a five-year collaborative project among 18 institutions to create 3D reconstructions of vertebrate specimens. #umeeb myumi.ch/kZ45z
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Ramon Nagesan retweeted
What’s the most ridiculous way you’ve had to come up with to mount a specimen for CT scanning? 😂 This is a strongly curved gorilla rib at ~8 micron resolution!
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Ramon Nagesan retweeted
The @NoCTURNetwork is working to compile a comprehensive list of CT scanning labs in academic institutions around the world. If you work at, or know of, a lab that you think should be included in this list, please fill out this form! forms.gle/hwXcoJGLsjDuBq1u8
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Man i love turtles 🐢
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Ramon Nagesan retweeted
We’re looking for a #paleobiologist or #palaeobiologist to come and join ⁦@OxUniEarthSci⁩ and ⁦@StEdmundHall⁩ as Associate Prof/Professor! Full details: Department of Earth Sciences » Vacancies earth.ox.ac.uk/vacancies/
Ramon Nagesan retweeted
We are so pleased to share our paper on the ethical, legal & political issues surrounding #Myanmar amber. We explored the data behind this important case to highlight changes needed to curb unethical and illegal practices in #palaeontology 🧵(1/9) 🔗 nature.com/articles/s42003-0…
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Ramon Nagesan retweeted
BUT WAIT THERE IS MORE. There is some debate about the evolution of teeth and jaws, but no doubt teeth are a fundamental characteristic of jawed vertebrates. BAM. Some isolated fossil teeth, also 439 year old from China, a full 10 million years before any other fossil teeth
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Ramon Nagesan retweeted
OK, so the world of early vertebrate palaeontology is EXPLODING, with 4 papers in this week's @Nature. Short* thread of why fossil fish-botherers are excited and why you should be too 🐟🦈 Spoiler alert: your evolutionary origins have just stretched further back in time.
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Big day for those of us who study Late Cretaceous dinosaurs from North America—been waiting for this one to drop for a long time! Calibrating the zenith of dinosaur diversity in the Campanian of the Western Interior Basin by CA-ID-TIMS U–Pb geochronology nature.com/articles/s41598-0…
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#IgNobelPrize Study reveals that ducklings apply a wave-riding and wave-passing principle to reduce the wave drag, improving their locomotion performance 🦆🐤🐤🐤 Yuan et al 2022 J Fluid Mech Wave-riding and wave-passing by ducklings in formation swimming doi.org/10.1017/jfm.2021.820
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Leafcutter ant (Atta cephalotes) heads are packed with muscle. This X-ray data also highlights the zinc-tipped cutting edge (bright green) of their mandibles as it shows as higher density. A VR tour of one of @EvoBiomech ant samples. #tomographytuesday
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Cranial ecomorphology of turtles and neck retraction as a possible trigger of ecological diversification onlinelibrary.wiley.com/doi/…
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Exceptional preservation of organs in Devonian placoderms from the Gogo lagerstätte science.org/doi/10.1126/scie…
Ramon Nagesan retweeted
The @FloridaMuseum is hiring an Assistant Curator of Mammalogy. Come work with an amazing community! Please retweet/share! cc @Mammalogists @BlkMammalogists floridamuseum.ufl.edu/nhdept…
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🚨 @isubiology is hiring a VERTEBRATE PHYSIOLOGIST (TT)! We’ve got a crew of other asst professors here in Pocatello, many in vert bio: paleo, phys, evodevo, anatomy. @IdahoStateUCoSE
Our department @isubiology is looking for a TT Assistant Professor in Vertebrate Physiology! We are looking for someone to join our up and rising team of faculty in the the department. Please help us spread the word! isu.csod.com/ux/ats/careersi…
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Ramon Nagesan retweeted
A special #FossilFriday: on behalf of the organizing committee, I am pleased to announce that the 12th NAPC will be held in Ann Arbor in 2024. Details to follow, but mark your calendars in the meantime! Logo featuring regional fossils by C. Abraczinskas, @UMichPaleo.
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