Systematic study of Early Carboniferous palynological assemblages from the Llanos Orientales Basin, Colombia∗

Eduardo Dueñas, Silvia Césari


This paper concerns the description of palynomorphs recovered from subsurface Early Carboniferous
strata of the SM-4 well located in the Llanos Orientales Basin, Colombia. Thirty-two species of spores are
recognized within the palynoflora. A new species is proposed: Spelaeotriletes colombianus Dueñas and Césari sp.
nov. The assemblages were referred to the Tournaisian-Viséan by the presence of distinctive spore species with
previous records in the Viséan and Tournaisian of Western Europe and Western Gondwana.

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