Results 31 to 40 of about 827 (199)
Andean Geology, 2012 Paleogene records of birds in the Eastern margin of the Pacific Ocean have increased in recent years, being almost exclusively restricted to fossil Sphenisciformes (penguins).
Roberto E Yury-Yáñez +5 more
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A review of Australian fossil penguins (Aves: Sphenisciformes) [PDF]
Memoirs of Museum Victoria, 2012 P ark, T. and Fitzgerald, E.M.G. 2012. A review of Australian fossil penguins (Aves: Sphenisciformes). Memoirs of Museum Victoria 69: 309–325. Australian fossil penguins (Sphenisciformes) are reviewed as a basis for future primary research. The five named species are based on type specimens of Eocene, Miocene—Pliocene and Holocene age collected from ...
Park, Travis, Fitzgerald, Erich M G
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Bone histology in extant and fossil penguins (Aves: Sphenisciformes) [PDF]
Journal of Anatomy, 2015 AbstractSubstantial changes in bone histology accompany the secondary adaptation to life in the water. This transition is well documented in several lineages of mammals and non‐avian reptiles, but has received relatively little attention in birds. This study presents new observations on the long bone microstructure of penguins, based on histological ...
Daniel T, Ksepka +3 more
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Gastrointestinal helminths of Adélie penguins (Pygoscelis adeliae) from Antarctica
Polar Research, 2016 Knowledge about parasitic organisms in Antarctica is scarce and fragmentary. The study reported here adds to the knowledge of gastrointestinal parasites of the Adélie penguin (Pygoscelis adeliae) (Sphenisciformes), from 25 de Mayo/King George Island ...
Julia Inés Diaz +6 more
doaj +1 more source
Another look at tarsometatarsi of early penguins
Polish Polar Research, 2015 The tarsometatarsus, a compound bone from the lower leg in birds, is the most important skeletal element in fossil penguin taxonomy, especially in the case of early members of this group.
Jadwiszczak Piotr
doaj +1 more source
, 2015 Published as part of Ksepka, DT & Clarke, JA, 2015, Phylogenetically vetted and stratigraphically constrained fossil calibrations within Aves, pp. 1-25 in Palaeontologia Electronica (Miami, Fla.) (Miami, Fla.) 18 on pages 6-8, DOI: 10.26879/373, http://zenodo.org/record ...
Ksepka, DT, Clarke, JA
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Three IgH isotypes, IgM, IgA and IgY are expressed in Gentoo penguin and zebra finch. [PDF]
PLoS ONE, 2017 Previous studies on a limited number of birds suggested that the IgD-encoding gene was absent in birds. However, one of our recent studies showed that the gene was definitely expressed in the ostrich and emu.
Binyue Han +5 more
doaj +1 more source
GEOCHEMICAL SIGNALS IN PALEOGENE PENGUINS FROM SEYMOUR ISLAND (ISLA MARAMBIO), ANTARCTIC PENINSULA
Publicación Electrónica de la Asociación Paleontológica Argentina, 2023 Trace elements, particularly rare earth elements (REE), are widely used as proxies to reconstruct paleoenvironmental and taphonomic conditions. We traced these elements in fossil penguin bones collected along the Paleogene sequence exposed in Seymour ...
Leandro Martín Pérez +6 more
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Health evaluation of penguins (Sphenisciformes) following mortality in the Falklands (South Atlantic) [PDF]
Diseases of Aquatic Organisms, 2001 In the Falklands, heavy mortality of rock-hopper penguins Eudyptes chrysocome occurred during the 1985-86 breeding season. Starvation was diagnosed as the primary cause of death, possibly caused by a shortage of euphausiid crustaceans (krill) due to unusual meterological conditions.
I F, Keyme +3 more
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Una nueva especie de spheniscidae del Mioceno Tardío de la Formación Pisco, Perú
Bulletin de l'Institut Français d'Études Andines, 2003 A new species of genus Spheniscus is described based on cranial elements from Late Miocene of Pisco Formation on the central-southern coast of Peru.
Marcelo Stucchi +2 more
doaj +1 more source