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• Paleobiology Database

  Eumedlicottia subprimas

  first appearance

  • URI: http://eol.org/schema/terms/FossilFirst
  • Definition: The first appearance of this taxon in the fossil record.

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  tremadocian age

  • URI: http://resource.geosciml.org/classifier/ics/ischart/Tremadocian
  • Attribution: International Chronostratigraphic Chart: http://www.stratigraphy.org/index.php/ics-chart-timescale

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• Paleobiology Database

  Gymnagnostus congros Robison & Pantoja-Alor 1968

  first appearance

  • URI: http://eol.org/schema/terms/FossilFirst
  • Definition: The first appearance of this taxon in the fossil record.

  show all records

  tremadocian age

  • URI: http://resource.geosciml.org/classifier/ics/ischart/Tremadocian
  • Attribution: International Chronostratigraphic Chart: http://www.stratigraphy.org/index.php/ics-chart-timescale

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• Paleobiology Database

  Leurostega aphelix Robison & Pantoja-Alor 1968

  first appearance

  • URI: http://eol.org/schema/terms/FossilFirst
  • Definition: The first appearance of this taxon in the fossil record.

  show all records

  tremadocian age

  • URI: http://resource.geosciml.org/classifier/ics/ischart/Tremadocian
  • Attribution: International Chronostratigraphic Chart: http://www.stratigraphy.org/index.php/ics-chart-timescale

  show all records

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