El registro de Pelagornithidae (Aves: Pelecaniformes) y la avifauna neógena del Pacífico sudeste [PDF]
Se examina el registro neógeno de la extinta familia Pelagornithidae en las Formaciones Pisco (Perú) y Bahía Inglesa (Chile) en la costa pacífica de América del Sur.
Chávez, Martín +2 more
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Marine vertebrate assemblages in the southwest Atlantic during the Miocene [PDF]
Two biogeographical units are generally recognized in the present shelf area of Argentina: the Magellanian and Argentinian Provinces. The two provinces differ in their fossil record.
Acosta Hospitaleche, Carolina Ileana Alicia +3 more
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The shape of penguins in four dimensions : assessing macroevolutionary shifts in a constructional morphology framework : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Zoology at Massey University, Albany Campus, New Zealand [PDF]
Figures 1.1 and 1.3 were removed for copyright reasons. Appendix A also removed for copyright reasons.Describing the morphology of a clade through deep time provides rich insight into the drivers that shaped modern diversity.
Giovanardi, Simone
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On the use of integumentary characters in bird phylogeny: the case of Tinamus osgoodi (Palaeognathae: Tinamidae) and plumage charcater coding [PDF]
Los caracteres tegumentarios raramente han sido incluidos en Ornitología Sistemática, a pesar de que la mayoría de los caracteres utilizados para diferenciar especies son de plumaje, ranfoteca (cubierta córnea del pico y narinas) y podoteca (escamas de ...
Bertelli, Sara Beatriz +1 more
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37 p. : ill. ; 24 cm.Includes bibliographical references (p. 35-37)."The known fossil penguins of Argentina are all from the Patagonia Formation, mostly from its basal part, in Chubut and Santa Cruz, probably early Miocene but possibly late Oligocene in ...
Ameghino, Florentino, 1853-1911. +1 more
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Patterning and microstructure of penguin plumage [PDF]
textPenguins (Sphenisciformes) exhibit an array of derived feather features. The characters describing penguin integument that are used in the phylogenetic reconstruction have not been reassessed since they were written in 2005.
Kulp, Felicia Briana
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Digital reconstruction of soft-tissue structures in fossils [PDF]
In the last two decades, advances in computational imaging techniques and digital visualization have created novel avenues for the study of fossil organisms.
Lautenschlager, Stephan
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Anatomía y morfología funcional del esqueleto de pingüinos (Aves, Sphenisciformes) actuales, aplicaciones en los fósiles [PDF]
Los pingüinos (Aves, Sphenisciformes) poseen una serie de modificaciones anatómicas, fisiológicas, y comportamentales relacionadas con el buceo. Su abundante registro fósil se remonta al Paleoceno, y cuenta con especímenes fósiles en excelente estado de ...
Haidr, Nadia Soledad
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18 p. : ill., maps ; 26 cm.Includes bibliographical references (p. 15-17).We report the discovery of the first vertebrate from the Paleogene of Tierra del Fuego (Isla Grande), Argentina, in southernmost South America. The specimen consists of parts of an
Clarke, Julia A. +2 more
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Evolución de los Balaenidae (Mammalia, Cetacea, Mysticeti) del Mioceno de Patagonia: sistemática, filogenia y aspectos paleobiológicos [PDF]
Los Balaenidae (Cetacea: Neoceti) son un grupo de misticetos caracterizados por presentar, en el cráneo y de la mandíbula, una serie de especializaciones vinculadas al sistema de alimentación por filtración, tales como un rostro muy arqueado y angosto ...
Buono, Mónica Romina
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