TY - JOUR N2 - The only record of the Paleogene Antarctic Sphenisciformes comes from the Eocene La Meseta Formation (Seymour Island, Antarctic Peninsula). The analysis of tarso− metatarsi attributed to the genus Anthropornis (“giant” penguins) from the Argentine, Polish and Swedish collections revealed an intriguing heterogeneity within these taxonomically important elements of the skeleton. The unique hypotarsal morphology challenges the current systematics of large−bodied penguins and sheds new light on their evolution. L1 - http://www.journals.pan.pl/Content/99496/PDF/10183_Volume32_Issue2_07_article.pdf L2 - http://www.journals.pan.pl/Content/99496 PY - 2011 IS - No 2 EP - 180 DO - 10.2478/v10183−011−0013−9 KW - Antarctic Peninsula KW - Eocene La Meseta Formation KW - penguins KW - Anthropornis KW - tarsometatarsi A1 - Hospitaleche, Carolina Acosta A1 - Jadwiszczak, Piotr PB - Polish Academy of Sciences PB - Committee on Polar Research DA - 2011 T1 - Enigmatic morphological disparity in tarsometatarsi of giant penguins from the Eocene of Antarctica SP - 175 UR - http://www.journals.pan.pl/dlibra/publication/edition/99496 T2 - Polish Polar Research ER -