The first palynomorphs recorded in the Paleogene fossiliferous beds of Laguna del Hunco Formation are described. They consist of fruiting bodies and Sporae Dispersae of Ascomycotina and Deuteromycotina fungi groups, recovered from a leaf of Laurelia guiñazui Berry (Monimiaceae) by the pull (dry peel) method. This microflora is constituted by: cf. Paramicrothallites Jain and Gupta; Callimothallus cf. pertusus Dilcher; lnapertisporites subovoideus Sheffy and Dilcher; l. circularis Sh. and D.; Monoporisporites cf. abruptus Sh. and D.; Diporisporites sp.; Multicellaesporites spp.; M. attenuatus Sh. and D.; M. Ovatus Sh. and D.; Staphlosporonites conoideus Sh. and D.; S. ovalis Sh. and D. and Staphlosporonites sp. Some of them are compared with fungi palynomorphs from neighbor areas and from North America. Bibliographic references about this subject in Argentina are also given. KEY WORDS. Argentina. Paleogene. Laguna del Hunco Formation. Fungi. Fruiting bodies. Sporae Dispersae.