Western Trilobites Association: Trilobite Genera / Species I Trilobite Formations I Trilobite Locations

Albertella helena Walcott, 1908

 

         

 

Name: Albertella helena Walcott, 1908
Trilobite Order Corynexochida, Family Zacanthoididae
Locality: left: northwestern Montana; middel: Nye Co., Nevada
Stratigraphy: left: Gordon Shale, Middle Cambrian; middle: Chisholm Shale, Mid. Cam.
Remarks: left & middle: Photos: G. Ast Collection
Note: line drawing modified from: Moore, R. C. (ed.) (1959): Treatise on Invertebrate Paleontology, O, Arthropoda, I. University of Kansas Press.

    Also occurs in the Cathedral (Dolomite) Formation, Ross Lake Shale Member, Albertella Zone (Albertella Fauna), eastern British Columbia (Banff National Park).

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