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Aktubonautilus eruciformis
Taxonomy
Aktubonautilus eruciformis was named by Ruzhentsev and Shimanskiy (1954). Its type specimen is PIN 626/14 and is a 3D body fossil. Its type locality is Aktasty River, eastern limestone ridge, Aktastinian, Aktyubinsk Region, which is in an Artinskian marine limestone in Kazakhstan. It is the type species of Aktubonautilus.