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  • Chondrichthyes
  • Paleogeneral
  • Chondrichthyes
  • Paleogeneral
  • Blake, S. F.
  • Calvert County
  • Maryland
  • North America
  • United States
  • Calvert County
  • Maryland
  • North America
  • United States
  • 1930s
  • NMNH - Paleobiology Dept.
  • Chondrichthyes
  • Chondrichthyes
  • Lamniformes
  • Lamniformes
  • Isurus hastalis (Agassiz, 1838)
  • Isurus hastalis (Agassiz, 1838)
  • Chesapeake Group
  • Chesapeake Group
  • Calvert Fm
  • Calvert Fm