1. The coracoids in functional and morphological studies of penguins (Aves, Spheniscidae) of the Eocene of Antarctica;Acosta Hospitaleche;Rivista Italiana di Paleontolog ia e Stratigrafia,2010
2. Una singular escápula de pingüino (Aves; Sphenisciformes) del Eoceno de Antártida: reconstrucción muscular e implicancias funcionales;Acosta Hospitaleche;Rivista Italiana di Paleontologia e Stratigrafia,2012
3. Penguin (Aves, sphenisciformes) cranial remains from the La Meseta Formation (Eocene) of Antarctic Peninsula (Antarctica);Acosta Hospitaleche;Antarctic Sciences,2011
4. First articulated skeleton of Palaeeudyptes gunnari from the late Eocene of Seymour (= Marambio) Island (Antarctica);Acosta Hospitaleche;Antarctic Sciences,2010
5. Evolution and biogeography of paleogene Weddellian penguins (Aves: sphenisciformes) of the James Ross Basin, Antarctica;Acosta Hospitaleche,2011