Paleozoic echinoderm hangover: Waking up within the Triassic

The top-Paleozoic witnessed probably the most devastating mass extinction in Earth’s historical past up to now, killing nearly all of species and profoundly shaping the evolutionary historical past of the survivors. Echinoderms are among the many marine invertebrates that suffered probably the most extreme losses on the finish-Permian extinction. Or have been they?
Paleontology News — ScienceDaily

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