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  • Paleogeneral
  • Walcott, C. D.
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  • NMNH - Paleobiology Dept.
  • Arthropoda
  • Arthropoda
  • Isoxys acutangulus Walcott
  • Isoxys acutangulus Walcott
  • Paleozoic
  • Paleozoic
  • Stephen Fm
  • Stephen Fm
  • Burgess Sh Mbr
  • Burgess Sh Mbr