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Cymatoceras columbinum
Taxonomy
Nautilus columbinus was named by Fritsch (1872).
It was recombined as Eutrephoceras columbinum by Wiedmann (1960), Shimansky (1975); it was recombined as Cymatoceras columbinum by Schneider et al. (2013).
It was recombined as Eutrephoceras columbinum by Wiedmann (1960), Shimansky (1975); it was recombined as Cymatoceras columbinum by Schneider et al. (2013).
Sister species lacking formal opinion data