Author: Riccardi, A.C., Aguirre Urreta, M.B., & Medina, F.A., 1987.:
Title: Aconeceratidae (Ammonitina) from the Hauterivian-Albian of southern Patagonia.
Description: Palaeontogr., Abt. A, 196(4-6): pp. 105-185, numerous photos on 14 plates, 46 figs., bibliogr. 4to. Plain new wrappers. Fine.

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