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Spirostylus beneckei
Taxonomy
Spirostylus beneckei was named by Kittl (1894). Its type specimen is NHMW 1899/V/539 and is a 3D body fossil. Its type locality is St. Cassian (Wiener Hofsmuseums coll), which is in a Julian carbonate limestone in the Cassian Formation of Italy.
Sister species lacking formal opinion data