Abstract
Abstract The Cullen Formation is exposed in the northeastern part of Tierra del Fuego Island; it is dated as Late Eocene to middle Oligocene on the basis of palynology. In this paper, 21 palynomorphs from the type locality of the formation are recorded, 13 of which have been previously described. Notable taxa include Baculatisporites comaumensis (Cookson 1953) Potonie 1956, Catinipollis geiseltalensis Krutzsch 1966, Crassiorites australis gen. et sp. nov., Lycopodiumsporites eminulus Dettmann 1963, Malvacipollis argentina sp. nov., Nothofagidites suggatei (Couper 1953) Hekel 1972, Phyllocladidites mawsonii Cookson 1947 ex Couper 1953, and Reboulisporites fuegiensis gen. et sp. nov. All of these species can be assigned to extant families with a high degree of confidence. The occurrence of M. argentina and C. australis is consistent with the hypothesis of a southern origin of Malvaceae and Onagraceae.
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