Silicified Silurian trilobites from Maine

Míreanna comhchosúla

• Silicified Silurian odontopleurid trilobites from the Mackenzie Mountains /
  de réir: Chatterton, B. D. E. (Brian D. E.)
  Foilsithe / Cruthaithe: (1983)
• The trilobites Bathyurus and Eomonorachus from the Middle Ordovician of Oklahoma and their biofacies significance /
  de réir: Ludvigsen, Rolf
  Foilsithe / Cruthaithe: (1978)
• The Ordovician trilobite Pseudogygites Kobayashi in eastern and arctic North America /
  de réir: Ludvigsen, Rolf
  Foilsithe / Cruthaithe: (1979)
• Silurian trilobites from the northern Yukon Territory /
  de réir: Ludvigsen, Rolf, 1944-
  Foilsithe / Cruthaithe: (1990)
• Upper Cambrian and Lower Ordovician trilobite biostratigraphy of the Rabbitkettle Formation, western District of Mackenzie /
  de réir: Ludvigsen, Rolf
  Foilsithe / Cruthaithe: (1982)