Name: Mexicella robusta Sundberg and McCollum, 2000
Corynexochida,
Superfamily Corynexochoidea,
Family Zacanthoididae
Locality: left: Lincoln Co., Nevada; right: Highland Range, Nevada
Stratigraphy: left: Susan Duster Limestone Mbr, Pioche
Shale Formation, Lower
Middle Cambrian;
right: Comet Shale Member, Pioche Shale Formation
Remarks: left: photographed by Richie
Kurkewicz; right: Photo: G.
Ast
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Western
Trilobites Association:
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