PALEOBIOLOGICAL REMARKS ON A NEW PARTIAL SKELETON OF THE EOCENE ANTARCTIC PENGUIN PALAEEUDYPTES KLEKOWSKII
Keywords:
Palaeeudyptes klekowskii, Eocene, Antarctica, paleobiology.Abstract
A new incomplete penguin skeleton is described herein. It is assigned to Palaeeudyptes klekowskii Myrcha, Tatur and Del Valle, a giant sphenisciform from the Priabonian Submeseta Formation in Marambio/Seymour Island, Antarctic Peninsula. Also provided is a paleobiological discussion derived from the morphology of this skeleton. A thorough description of muscular origin and insertions, body mass, body length, and diving duration estimations support the hypothesis that the new specimen represents a marine bird with limited swimming skills wighing 40–44 kg and measuring 133.2–143.2 cm long. Resumen. CONSIDERACIONES PALEOBIOLÓGICAS ACERCA DE UN NUEVO ESQUELETO DE PINGUINO EOCENO ANTÁRTICO DE PALAEEUDYPTES KLEKOWSKII. Un nuevo e incompleto esqueleto perteneciente a Palaeeudyptes klekowskii Myrcha, Tatur y del Valle, procedente de la Formación Submeseta (Priaboniano) de la Isla Marambio/Seymour, Península Antártica es aquí estudiado. Se brinda además una discusión acerca de sus atributos paleobiológicos a partir de la morfología del esqueleto. Una detallada descripción de los orígenes e inserciones musculares, sumado a las estimaciones de su masa, longitud corporal, y capacidades de buceo, soportan la idea de que el nuevo espécimen correspondió a un ave nadadora de unos 40–44 kg de peso y 133.2–143.2 cm de largo con limitadas capacidades locomotoras bajo el agua.Downloads
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