Eretiscus tonnii (Simpson) (Aves, Sphenisciformes): materiales adicionales, status taxonómico y distribución geográfica
Eretiscus tonnii (Simpson) (Aves, Sphenisciformes): additional materials, taxonomic status and geographic distribution. Additional material of the small Latest Oligocene-Earliest Miocene fossil penguin, Eretiscus tonnii (Simpson, 1981) Olson, 1986, is described. The new and previously known specimens allow us to refer this species to the subfamily Palaeospheniscinae, which contains the genera Palaeospheniscus and Eretiscus. Previous references to the presence of the genus Eretiscus in New Zealand, based on an isolated humerus (Hakataramea bird) are revised and dismissed here. As a consequence, no fossil penguins in common between Patagonia andNew Zealandare known. Thus, the genus Eretiscus and the entire subfamily Palaeospheniscinae are restricted toSouth America. Key words: Fossil penguins, Spheniscidae, Palaeospheniscinae, Miocene,Patagonia, New Zeland.
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