Classification of the subgenus Aulacostephanus (Aulacostephanus)
Subg. †Aulacostephanus (Aulacostephanus) Sutner and Pompeckj 1896
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†Aulacostephanus (Aulacostephanus) pinguis Ziegler 1962
†Aulacostephanus (Aulacostephanus) sagittatus Ziegler 1962
†Aulacostephanus (Aulacostephanus) yo d'Orbigny 1850