Details

Title

Partial limb skeleton of a “giant penguin” Anthropornis from the Eocene of Antarctic Peninsula

Journal title

Polish Polar Research

Yearbook

2012

Numer

No 3

Publication authors

Keywords

Antarctica ; Seymour Island ; Eocene La Meseta Formation ; Sphenisciformes ; Anthropornis ; wing ; hind limb

Divisions of PAS

Nauki o Ziemi

Coverage

259-274

Abstract

The fossil record of the Antarctic penguins is dated to the late Paleocene of Seymour (Marambio) Island, but the largest sphenisciforms, genera Anthropornis and Palaeeudyptes , originate from the Eocene La Meseta Formation. Here, the most complete large−scale reconstruction of a limb skeleton (a whole wing and a partial hind leg) of a Paleogene Antarctic penguin is reported. All bones are attributable to a single individual identified as Anthropornis sp. The comparative and functional analyses of the material indicate that this bird was most probably well−adapted to land and sea while having a number of intriguing features. The modern−grade carpometacarpal morphology is unique among known Eocene Antarctic species and all but one more northerly taxa.

Publisher

Polish Academy of Sciences ; Committee on Polar Research

Date

2012

Type

Artykuły / Articles

Identifier

ISSN 0138-0338 ; eISSN 2081-8262

DOI

10.2478/v10183−012−0017−0

×