Middle Ordovician (Whiterockian) trilobites from the Sunblood Formation, District of Mackenzie, Canada

J. V. Tremblay, and S. R. Westrop

1991

Article

Journal of Paleontology 65(5):801-824

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Taxa discussed in this work:

• Amphion
• Bathyurinae
• Bathyurus mackenziensis
• Bathyurus margareti
• Bathyurus sunbloodensis
• Isotelus harrisi
• Ludvigsenella
• Psephosthenaspis ellipsepyga
• Pseudomera barrandei
• Walencrinuroides rarus
• Xystocrania perforator

Taxonomy:

• Isotelus harrisi belongs to Isotelus - Raymond (1905)
• Pseudomera barrandei belongs to Pseudomera - Holliday (1942)
• Ceraurinella nahanniensis belongs to Ceraurinella - Chatterton and Ludvi (1976)
• Acanthoparypha evitti belongs to Acanthoparypha - Chatterton and Ludvi (1976)
• Calyptaulax callirachis belongs to Calyptaulax - Chatterton and Ludvi (1976)
• Bathyurus granulosus belongs to Bathyurus - Ludvigsen (1979)
• Bathyurus angustus belongs to Bathyurus - Tremblay and Westrop (1991)
• Bathyurus mackenziensis belongs to Bathyurus - Tremblay and Westrop (1991)
• Bathyurus sunbloodensis belongs to Bathyurus - Tremblay and Westrop (1991)
• Bathyurus margareti belongs to Bathyurus - Tremblay and Westrop (1991)
• Kawina unicornica belongs to Xystocrania perforator - Tremblay and Westrop (1991)