 Seymour Island has been a site of study of many fossils from this particular part of the Eocene period, during which there was a more flourishing ecosystem with diverse biota as a result of the warmer climate.A diverse array of fossilized species have been studied on the Island, including extinct penguin species (such as "Palaeeudyptes klekowskii" and "Archaeospheniscus wimani"), various species in the bivalvia class and various types of flora and fauna.A fossil marsupial of the extinct family Polydolopidae was found on Seymour Island in 1982.