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Keywords from Image Description:
Ottoia prolifica teeth NMNH . en Type and Type teeth of the Cambrian Priapulid Ottoia prolifica from the Burgess Shale Smithsonian institution NMNH Smith MR Harvey THP Butterfield NJ Data from The macro and microfossil record of the middle Cambrian priapulid Ottoia Dryad Digital Repository doi org km Martin Smith other versions