Results 11 to 20 of about 359,043 (172)
Bill disparity and feeding strategies among fossil and modern penguins
Paleobiology, 2020 . One of the most remarkable differences between Paleogene penguins and their living relatives is the shape and length of their beaks. Many of the Eocene and Oligocene penguins have a thin and elongated spear-like bill, which contrasts with the ...
Martín Chávez-Hoffmeister
semanticscholar +3 more sources
New Miocene Fossils and the History of Penguins in Australia.
PLoS ONE, 2016 Australia has a fossil record of penguins reaching back to the Eocene, yet today is inhabited by just one breeding species, the little penguin Eudyptula minor.
Travis Park +4 more
doaj +2 more sources
Morphometric patterns in Recent and fossil penguins (Aves, Sphenisciformes)
Journal of Zoology, 1989 A total of 622 skin specimens, 527 skeletons, and myological data compiled by Schreiweis (1972) were used to investigate morphometric patterns within and among the 18 Recent species of Spheniscidae, and to compare the family with a fighted species, the ...
B. C. Livezey
semanticscholar +3 more sources
Bone histology in extant and fossil penguins (Aves: Sphenisciformes)
Journal of Anatomy, 2015 D. Ksepka +3 more
semanticscholar +3 more sources
The phylogeny of the living and fossil Sphenisciformes (penguins)
Cladistics, 2006 D. Ksepka, S. Bertelli, N. Giannini
semanticscholar +3 more sources
Fossil plotopterid seabirds from the Eo-Oligocene of the Olympic Peninsula (Washington State, USA): descriptions and functional morphology. [PDF]
PLoS ONE, 2011 The plotopterids (Aves, Plotopteridae) were a group of extinct wing-propelled marine birds that are known from Paleogene-aged sediments (Eocene to Miocene), mostly around the Pacific Rim (especially Japan and the northwest coast of North America).
Gareth J Dyke, Xia Wang, Michael B Habib
doaj +1 more source
Diversity, 2020 We describe a partial skeleton of a stem group penguin from the Waipara Greensand in New Zealand, which is tentatively assigned to Muriwaimanu tuatahi. The fossil includes the first complete wing of a Paleocene penguin and informs on previously unknown ...
Gerald Mayr +5 more
doaj +1 more source
Heliyon, 2023 Anthropogenic activities, especially associated with fossil fuel combustion, are raising concerns worldwide, but remote areas with extreme climate conditions, such as Antarctica, are isolated from the adverse influence of human civilisation.
Siwatt Pongpiachan +7 more
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Melanin concentration gradients in modern and fossil feathers. [PDF]
PLoS ONE, 2013 In birds and feathered non-avian dinosaurs, within-feather pigmentation patterns range from discrete spots and stripes to more subtle patterns, but the latter remain largely unstudied.
Daniel J Field +5 more
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Mutation and evolutionary rates in adélie penguins from the antarctic. [PDF]
PLoS Genetics, 2008 Precise estimations of molecular rates are fundamental to our understanding of the processes of evolution. In principle, mutation and evolutionary rates for neutral regions of the same species are expected to be equal. However, a number of recent studies
Craig D Millar +8 more
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