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Showing results for tags 'ct scan'.
Found 6 results
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High resolution CT scanning of Tiktaalik skull shows it could still slide skull bones to create suction for feeding in water. https://scitechdaily.com/new-evidence-emerges-on-how-early-tetrapods-learned-to-live-and-eat-on-land/amp/
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A group of UK scientists reexamined a group of late stage Neanderthal teeth from the early 1900s with modern techniques such as CT scanning. They discovered a mix of new characteristics indicative of both modern Homo sapiens and Neanderthal, more evidence supporting a gradual absorption of Neanderthals into emerging modern human populations. Article Link Published Paper Link (Not free access)
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Article on new structural findings of Tiktaalik and other fish/tetrapod fins/feet https://m.phys.org/news/2019-12-fish-fins-evolved-transition.html
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Here’s an interesting article by Paleoanthropologist John Hawks, it details the problems CT scans can introduce when dating fossils via ESR (electron spin resonance) dating. This is particularly pertinent to paleoanthropology because of how vital exact dates are. http://johnhawks.net/weblog/reviews/geology/dating/x-ray-esr-ct-scans-2019.html
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I talked about this elsewhere but so everyone has a chance to view it, here is a video showing a CT scan we (TMDC) did of a jacket with 5 eggs. The eggs are currently unknown and likely new, the main goal of the scan was to help determine if there are any embryonic remains inside. CT scans often are not ideal for showing bone so what we looked for were teeth since they tend to show up better in a scan and develop at a relatively early stage. Happy to answer any questions people may have about this. A local news story on the scan: http://www.choteauacantha.com/
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CT Imagery of Coprolite with Cephalopod Hook Inclusions
GeschWhat posted a gallery image in Members Gallery
From the album: Coprolites
This is a brief video showing inclusion contained with in a Jurassic marine coprolite thanks to the magic of X-ray computed tomography (aka Micro CT Scan). The coprolite is from the Oxford Clay Formation, Orton Pit, Peterborough, Cambridgeshire, England. Imagery was provided by the University of Minnesota X-ray Computed Tomography Lab.
