INVESTIGADORES
ACOSTA HOSPITALECHE Carolina Ileana Alicia
artículos
Título:
Miocene Patagonian penguins: craniomandibular morphology and functional mechanics
Autor/es:
HAIDR, N.; ACOSTA HOSPITALECHE, C.
Revista:
ALCHERINGA
Editorial:
TAYLOR & FRANCIS LTD
Referencias:
Lugar: Londres; Año: 2014 vol. 38 p. 273 - 280
ISSN:
0311-5518
Resumen:
Fossil penguins (Aves, Spheniscidae) are widely recorded throughout the Southern Hemisphere, and are especially well represented from the Eocene to present in Patagonia. Their large taxonomic and morphological diversity was probably related to adoption of varied feeding habits and diets. In Patagonia there are currently three Miocene specimens that include preservation of part of the skull and mandibles. In this contribution, Paraptenodytes antarcticus, Madrynornis mirandus and MLG 3400 (cf. Spheniscus) are studied. Reconstruction, morphometric analysis, detailed morphological description, and data from extant penguin muscles were employed to determine their possible dietarys preferences. It was concluded that Paraptenodytes antarcticus and cf. Spheniscus have had piscivorous diets with different strategies for prey capture. A mixed diet was inferred for Madrynornis.
