Argonauta sismondai is an extinct species of argonautid octopus. It was described from fossil remains dating to the Pliocene. In terms of eggcase morphology it is considered closest to the extant A. hians. Iwatani, H., K. Murai, T. Irizuki, H. Hayashi & Y. Tanaka 2009. Journal of the Geological Society of Japan 115(10): 548–551. Hilber, V. 1915. Mitteilungen des naturwissenschaftlichen Vereins für Steiermark 51: 107–110. Hoernes, R. & L. Dollo 1886. Octopoda. In: Manuel de Paléontologie. Librairie F. Savy, Paris. pp. 380–381.
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