References
- Achurra RevecoL. 2004. Cambios del nivel del mar y evolución tectónica de la cuenca Neógena de Caldera, III Región. Unpublished Magister Tesis.Santiago, Chile: Departamento de Geología de la Universidad de Chile.
- Acosta HospitalecheC. 2011. A new Patagonian penguin skull: taxonomic value of cranial characters. Ameghiniana. 48:605–620.
- AcostaHospitaleche C.2013. New crania from Seymour Island (Antarctica) that shed light on anatomy of Eocene penguins. Pol. Polar Res. 34:397–412.
- Acosta HospitalecheC, CastroLN, TambussiC, ScassoR. 2008. Palaeospheniscus patagonicus (Aves, Spheniscidae): new discoveries from the early Miocene of Argentina. J Palaeontol.82(3):565–575.
- Acosta HospitalecheC, ChavezM, FritisO. 2006. Pingüinos fósiles (Pygosceliscalderensis sp.nov.) en la Formación Bahía Inglesa (Mioceno-Plioceno), Chile. Rev Geol Chile.33(2):327–338.
- Acosta HospitalecheC, TambussiC. 2006. Skull morphometry of Pygoscelis (Sphenisciformes): inter and intraspecific variations. Polar Biol.29(9):728–734.
- Acosta HospitalecheC, TambussiC, DonatoM, CozzuolMA. 2007. A new miocene penguin from Patagonia and its phylogenetic relationships. Acta Palaeontol Pol.52(2):299–314.
- BaumelJJ, KingAS, BreazileJE, EvansHE. 1993. Handbook of avian anatomy: nomina anatomica avium. In: BaumelJJ, KingAS, BreazileJE, EvansHE, Vanden BergeJC, editors. Publications of the nuttall ornithological club. 23, 779 pp.
- BaumelJJ, GerchmanL. 1968. The avian carotid anastomosis. Am J Anat.122:1–18.
- Bee de SperoniN, PirlotP. 1987. Relative size of avian brain components of the magellanic penguin, the greater Rhea and the Tataupa tinamou. Cormorant. 15:7–22.
- BertelliS, GianniniNP, KsepkaDT. 2006. Redescription and phylogenetic position of the early Miocene penguin Paraptenodytes antarcticus from Patagonia. Am Mus Novit.3525:1–36.
- ElzanowskiA, GaltonPM. 1991. Braincase of Enaliornis, an early Cretaceous bird from England. J Vertebr. Paleontol.11:90–107.
- HaidrN, Acosta HospitalecheC. 2012. Feeding habits of Antarctic Eocene penguins from a morphofunctional perspective. N Jb Geol Paläont.263(2):125–131.
- KsepkaDT, BalanoffAM, WalshS, RevanA, HoA. 2012. Evolution of the brain and sensory organs in Sphenisciformes: new data from the stem penguin Paraptenodytes antarcticus. Zool J Linn. Soc.166:202–219.
- MarchantM, MarquardtC, BlancoN, GodoyE. 2000. Foraminíferos del área de Caldera (26°45′-28°S) y su utilización como indicadores cronoestratigráficos del Neógeno. In: Congreso Geológico Chileno, Puerto Varas. No. 9, Actas1. p. 499–503.
- MilnerAC, WalshSA. 2009. Avian brain evolution: new data from Palaeogene birds (Lower Eocene) from England. Zool J Linn. Soc.155:198–219.
- Rubilar-RogersD, OteroR, Yury-YáñezR, VargasA, GutsteinC. 2012. An overview of the dinosaurs fossil record from Chile. J South Am Earth Sci.37:242–255.
- SaiffE. 1976. Anatomy of the middle ear region of the avian skull: Sphenisciformes. Auk.93(4):749–759.
- SimpsonGG. 1972. Pliocene penguins from North Canterbury. Rec Canterbury Mus.9(2):159–182.
- StucchiM. 2007. Los pingüinos de la Formación Pisco (Neógeno), Perú. In: Díaz–MartínezE, RábanoI, editors. 4th European Meeting on the Paleontology and Stratigraphy of Latin America, Cuadernos del Museo Geominero, no. 8Madrid: Instituto Geológico y Minero de España; p. 367–373.
- WalshSA. 2001. The Bahía Inglesa Formation Bonebed: genesis and palaeontology of a Neogene Konzentrat Lagerstätte from north-central Chile. Unpublished PhD Thesis.University of Portsmouth.
- WalshSA, BarrettPM, MilnerAC, ManleyG, WitmerLM. 2009. Inner ear anatomy is a proxy for deducing auditory capability and behaviour in reptiles and birds. Proc R Soc. B. 276:1355–1360.
- WalshSA, LuoZ-X, BarretPM. 2013. Insights from comparative hearing research. In: KopplC, et al., editors. Modern imaging techniques as a window to prehistoric auditory worlds. 49Springer Handbook of Auditory Research, doi https://doi.org/10.1007/2506_2013_32.
- WalshSA, MilnerA. 2011a. Evolution of the avian brain and senses. In: DykeG, KaiserG, editors. Living dinosaurs: the evolutionary history of modern birds. Chichester: Wiley; p. 282–305.
- WalshSA, MilnerA. 2011b. Halcyornis toliapicus (Aves: Lower Eocene, England) indicates advanced neuromorphology in Mesozoic Neornithes. J Syst. Palaeontol.9:173–181.
- WalshSA, SuárezM. 2006. New penguin remains from the Pliocene of Northern Chile. Hist Biol.18:115–126.
- WilliamsTD. 1995. The penguins. Oxford: Oxford University Press.
- WitmerLM, ChatterjeeS, FranzosaJ, RoweT. 2003. Neuroanatomy of flying reptiles and implications for flight, posture and behaviour. Nature. 425:950–953.
- WitmerLM, RidgelyRC, DufeauDL, SemonesMC. 2008. Using CT to peer into the past: 3D visualisation of the brain and ear regions of birds, crocodiles and nonavian dinosaurs. In: EndoH, FreyR, editors. Anatomical imaging: towards a new morphology. Tokyo: Springer; p. 67–87.