Dear MARMAM suscribers, On behalf of my coauthors, we would like to announce our recent publication in the open-access journal PLoS ONE: Tanaka Y, Abella J, Aguirre-Fernández G, Gregori M, Fordyce RE (2017) A new tropical Oligocene dolphin from Montañita/Olón, Santa Elena, Ecuador. PLoS ONE 12(12): e0188380. https://doi.org/10.1371/journal.pone.0188380 The article can be downloaded here: http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0188380 ABSTRACT A new small probable Oligocene dolphin from Ecuador represents a new genus and species, *Urkudelphis chawpipacha*. The new taxon is known from a single juvenile skull and earbones; it differs from other archaic dolphins in features including widely exposed frontals at the vertex, a dorsally wide open vomer at the mesorostral groove, and a strongly projected and pointed lateral tuberosity of the periotic. Phylogenetic analysis places it toward the base of the largely-extinct clade Platanistoidea. The fossil is one of a few records of tropical fossil dolphins. Best regards, Gabriel Aguirre