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Ancestral morphology of crown-group molluscs revealed by a new Ordovician stem aculiferan
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Anomalocaridid trunk limb homology revealed by a giant filter-feeder with paired flaps
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Preservation of giant anomalocaridids in silica-chlorite concretions from the Early Ordovician of Morocco
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A giant Ordovician anomalocaridid
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Plumage color patterns of an extinct dinosaur
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Ordovician faunas of Burgess Shale type
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Machaeridians are Palaeozoic armoured annelids