INVESTIGADORES
PAULINA CARABAJAL ariana
artículos
Título:
Endocranial morphology of Pygoscelis calderensis (Aves, Spheniscidae) from the Neogene of Chile and remarks on brain morphology in modern Pygoscelis
Autor/es:
PAULINA CARABAJAL, A.; ACOSTA HOSPITALECHE, C.; YURI-YÁÑEZ, R.
Revista:
Historical Biology
Editorial:
Taylor and Francis
Referencias:
Año: 2015 vol. 27 p. 571 - 582
ISSN:
0891-2963
Resumen:
The endocranial anatomy of Pygoscelis calderensis, a fossil species from the Bahı´a Inglesa Formation (Middle Miocene?Pliocene) of Chile, South America, was described through CT scans. Reconstructions of the fossil P. calderensis and endocasts for the living Pygoscelis adeliae, and Pygoscelis papua are provided here for the first time. Comparisons with theextant congeneric species P. adeliae, Pygoscelis antarctica and P. papua indicate that the morphological pattern of the brain and inner ear of the extant pygoscelids has been present already in the Middle Miocene. The neurological morphology suggests that the paleobiology of the extinct form would have been similar to the extant species. It was probably true for diet,feeding behaviour and diving kinematics.
