INVESTIGADORES
PAULINA CARABAJAL ariana
artículos
Título:
The first skull of Anthropornis grandis (Aves, Sphenisciformes) associated with postcranial elements
Autor/es:
ACOSTA HOSPITALECHE, C.; HAIDR, N.; PAULINA CARABAJAL, A.; REGUERO, M.
Revista:
COMPTES RENDUS PALEVOL
Editorial:
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
Referencias:
Lugar: Paris; Año: 2019 vol. 18 p. 599 - 617
ISSN:
1631-0683
Resumen:
Associatedpenguin remains found in Bartonian levels of the Submeseta Formation (SeymourIsland, Antarctica), including cranium and mandible, both partialtarsometatarsi, and some other fragmentary bones, are here analyzed. Thisspecimen preserves the first cranium reliably assigned to the giant form Anthropornis grandis, and constitutesthe first opportunity to taxonomically assign a cranial material to any of theAntarctic penguin species. A discussion of the diet preferences and feedingmechanisms of A. grandis is supportedhere by three-dimensional paleoneurological and cranial-jaw muscularreconstructions. We propose that A.grandis was a penguin with a voluminous musculature strongly attached tothe neck and skull, adapted to chase and hunt fish during diving.
