The trilobites Bathyurus and Eomonorachus from the Middle Ordovician of Oklahoma and their biofacies significance /

Míreanna comhchosúla

• Echinoderm faunas from the Bromide Formation (Middle Ordovician) of Oklahoma /
  Foilsithe / Cruthaithe: (1982)
• The Ordovician trilobite Pseudogygites Kobayashi in eastern and arctic North America /
  de réir: Ludvigsen, Rolf
  Foilsithe / Cruthaithe: (1979)
• Upper Cambrian and Lower Ordovician trilobite biostratigraphy of the Rabbitkettle Formation, western District of Mackenzie /
  de réir: Ludvigsen, Rolf
  Foilsithe / Cruthaithe: (1982)
• The trilobite family Cyclopygidae Raymond in the Ordovician of Bohemia.
  de réir: Marek, Ladislav,
  Foilsithe / Cruthaithe: (1961)
• Lower Ordovician trilobites from western Utah and eastern Nevada /
  de réir: Hintze, Lehi F.
  Foilsithe / Cruthaithe: (1952)