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  • Plastoholotypes
  • Taxonomic type specimens
  • Plastoholotypes
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  • Paleogeneral
  • Rostroconchia
  • Paleogeneral
  • Rostroconchia
  • China
  • NMNH - Paleobiology Dept.
  • Rostroconchia
  • Rostroconchia
  • Ribeiria manchurica Kobayashi
  • Ribeiria manchurica Kobayashi
  • Paleozoic
  • Paleozoic
  • Ordovician
  • Ordovician
  • Wanwankou Dol
  • Wanwankou Dol