Palmoxylon (Magnoliopsida: Arecaceae) richness in the Puntudo Chico Formation (Campanian-lowermost Maastricthian), Chubut Province, Argentina: systematics, palaeoclimatic significance and comments on biogeography of Phytelepheae. - Vera, Ezequiel Ignacio; Perez Loinaze, Valeria S.; Llorens, Magdalena; Passalia, Mauro Gabriel (Historical Biology, 2025)