First fossilized skin of a giant penguin from the Eocene of Antarctica

被引：9
作者：
Acosta Hospitaleche, Carolina [1 ]
De Los Reyes, Martin [2 ]
Santillana, Sergio [2 ]
Reguero, Marcelo [2 ,3 ]
机构：
[1] Comis Nacl Invest Cient & Tecnol CONICET, Div Paleontol Vertebrados, Fac Ciencias Nat & Museo, Museo La Plata, Paseo Bosque S-N, RA-1900 La Plata, Buenos Aires, Argentina
[2] Inst Antartico Argentino, Direcc Nacl Antartico, 25 Mayo 1143 B1650, San Martin, Argentina
[3] Museo La Plata, Div Paleontol Vertebrados, Paseo Bosque S-N, RA-1900 La Plata, Buenos Aires, Argentina
来源：
LETHAIA | 2020年 / 53卷 / 03期
关键词：
Lutetian; mineralized integument; Palaeeudyptes gunnari; Palaeogene; Seymour Island; Submeseta Formation; MARAMBIO SEYMOUR ISLAND; SOFT-TISSUE; PALAEEUDYPTES-GUNNARI; INNER-MONGOLIA; PRESERVATION; SYSTEMATICS; EVOLUTION; IMPRESSIONS; SPECIMEN; FEATHERS;
D O I：
10.1111/let.12366
中图分类号：
Q91 [古生物学];
学科分类号：
0709 ; 070903 ;
摘要：
An articulated wing belonging to Palaeeudyptes gunnari containing mineralized skin was found in Lutetian (middle Eocene) sediments from Seymour Island, Antarctica. It shows the connective tissues, morphology and density of the feather follicles, and a groove pattern left by the feather calami resting on the skin. Analysis of the preserved surfaces indicates a composition of calcium phosphate. This is the most complete and only articulated wing described for this species and represents the first record of a neornithine bird preserving three-dimensional integument. Plumage density of the wing MLP 14-I-10-22, estimated by counting the follicles under a stereoscopic microscope, is lower than that of the modern Emperor penguin.
引用
收藏
页码：409 / 420
页数：12
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