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Synchrotron Imaging

All articles tagged with #synchrotron imaging

science1 day ago•32 min saved

Ancient fossil labeled oldest octopus debunked: a nautiloid, not an octopus

A 300-million-year-old fossil once hailed as the world’s oldest octopus has been reclassified as a nautiloid after new analyses, including synchrotron imaging and detailed geochemistry. The researchers found a radula with many rows of teeth inconsistent with octopuses, explaining why the fossil looked octopus-like as it decomposed. Discovered at the Mazon Creek site near Chicago, Pohlsepia mazonensis’ true identity underscores how advanced technologies are reshaping paleontology by revealing hidden anatomy that old methods missed.

via Yahoo News New Zealand|

#fossil #nautiloid #octopus

science2 days ago•174 min saved

New imaging rewrites 'oldest octopus' claim: fossil is a nautiloid relative

A 328-million-year-old fossil once hailed as the oldest octopus, Pohlsepia mazonensis, has been reclassified after researchers used cutting-edge techniques including synchrotron imaging to uncover features inconsistent with octopuses (such as multiple radula teeth). The findings show it is actually a decomposed nautiloid, a relative of modern nautiluses, highlighting how new technologies are advancing paleontology and revising our view of ancient cephalopods.

via CNN|

#fossil #nautiloid #paleontology

science2 days ago•6 min saved

Ancient Octopus Fossil Reclassified as Nautiloid, Redrawing Cephalopod History

New synchrotron imaging of the 300-million-year-old fossil Pohlsepia mazonensis shows it is a nautiloid relative, not an octopus. The fossil reveals a nautilus-like radula with 11 tooth-like elements per row and other features, leading researchers to reclassify the find and push octopus origins into the Mesozoic era (late Jurassic at latest). Published in Proceedings of the Royal Society B, the study also provides the oldest soft-tissue evidence of a nautiloid, reshaping our understanding of cephalopod evolution.

via Indian Defence Review|

#cephalopods #nautilus #octopus-evolution

paleontology8 months ago•21 min saved

New Head–Trunk Interface Assembly Discovered in Jawless Vertebrate Relatives

The article presents a novel non-destructive synchrotron imaging study of the fossil Norselaspis glacialis, revealing new insights into the head-trunk interface and circulatory system of early vertebrates, bridging features between jawless and jawed vertebrates, and challenging previous reconstructions of its anatomy.

via Nature|

#fossil-anatomy #gnathostomes #head-trunk-interface