Genus: Palaeoargentina PINDAKIEWICZ, HRYNIEWICZ & KAIM, 2022 (published 2023)
Etymology: Greek, palaios, "old", and the country of orign, Argentina.

Species: plicata PINDAKIEWICZ, HRYNIEWICZ & KAIM, 2022 (published 2023)
Etymology: Latin , plica, "fold." In reference to the lobed dorsal and ventral parts of the otolith.

Holotype: ZPAL P. 11/16

Locality: Wawal, central Poland.

Horizon:

Biostratigraphy; Platylenticeras involutum zone.

Age: Lower Valanginian Stage, Middle Neocomian Subepoch, Early Cretaceous Epoch, Early Cretaceous.

Material: Otolith.

Referred material:

Otoliths: S1 (6 specimens), R1 (8 specimens), Qi (20 specimens), P1 (11 specimens), O1 (7 specimens), N1 (17 specimens), M1 (6 specimens), L1 (3 specimens), K1 (2 speciens), J1 (8 specimens), I1 (14 specimens), H1 (4 specimens), G1 (12 specimens), F1 (1 specimen), D1 (2 specimens), C1 (1 specimen), B1 (2 specimens), F2 (1 specimen), E2 (13 specimens), D2 (1 specimen), C2 (1 specimen), B2 (1 specimen0, B5 (2 specimen), and A5 (2 specimens).