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waking up in the triassic

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waking up in the triassic

paleozoic hangover asterozoans. specimen repositories: mhi = muschelkalkmuseum ingelfingen; mnhnl = natural history museum luxembourg. credit: figure courtesy b. thuy et al., copyright the geological society of america, 2017.the end-paleozoic witnessed the most devastating mass extinction in earth's history so far, killing the majority of species and profoundly shaping the evolutionary history of the survivors. echinoderms are among the marine invertebrates that suffered the most severe losses at the end-permian extinction. at least that was the consensus until a team of european paleontologists—ben thuy, hans hagdorn, and andy s. gale—cast a critical eye on some poorly studied triassic...