Name: Spencia
typicalis,
Resser, 1939a
Order
Ptychopariida. Family Ptychopariidae
Locality: Antimony Canyon, Wellsville Mountains,
Utah
Stratigraphy: Spence Shale, Langston Fm., Middle Cambrian
Remarks: Photo: N. Skabelund
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Western
Trilobites Association:
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