Title Enigmatic morphological disparity in tarsometatarsi of giant penguins from the Eocene of Antarctica
Author Acosta Hospitaleche, C.; Jadwiszczak, P.
Author Affil Acosta Hospitaleche, C., Museo de La Plata, División Paleontología Vertebrados, La Plata, Argentina. Other: Uniwersytet w Bialymstoku, Poland
Source Polish Polar Research, 32(2), p.175- 180. Publisher: Panstwowe Wydawnictwo Naukowe, Warsaw, Poland. ISSN: 0138- 0338
Publication Date 2011
Notes In English. 18 refs. GeoRef Acc. No: 308799
Index Terms Antarctica--Antarctic Peninsula; Antarctica--Seymour Island; Antarctic Peninsula; Antarctica; Anthropornis; Aves; bones; Cenozoic; Chordata; Eocene; extremities; La Meseta Formation; morphology; Neornithes; Paleogene; Seymour Island; size; Spheniscidae; Sphenisciformes; Tertiary; Tetrapoda; upper Eocene; Vertebrata
Abstract The only record of the Paleogene Antarctic Sphenisciformes comes from the Eocene La Meseta Formation (Seymour Island, Antarctic Peninsula). The analysis of tarsometatarsi 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.
URL http://hdl.handle.net/10.2478/v10183-011-0013-9
Publication Type journal article
Record ID 91276