Results 61 to 70 of about 30,777 (230)

Braincase anatomy and palaeoneurology of Venetoraptor gassenae, a lagerpetid pterosauromorph from the Late Triassic of southern Brazil

open access: yesPalaeontology, Volume 69, Issue 2, 2026.
Abstract There is a growing consensus that pterosaurs and the flightless Lagerpetidae are closely related. This relationship is supported by apomorphies throughout the skeleton, including endocranial character states such as a well‐developed floccular fossa and a tall anterior semicircular canal. Our knowledge of lagerpetid anatomy has been improved by
Lísie V.S. Damke   +6 more
wiley   +1 more source

Structural framework and evolution of the Golfo San Jorge Basin: a synthesis

open access: yesLatin American Journal of Sedimentology and Basin Analysis
The Golfo San Jorge Basin evolved through a complex multiphase structural history from the Middle Jurassic to the Neogene. Its stratigraphic record captures key tectonic events in central extra-Andean Patagonia during Gondwana fragmentation and the ...
José Oscar Allard   +6 more
doaj   +4 more sources

Serological Survey of Antibodies to Mannheimia haemolytica and Pasteurella multocida in Camelids from Argentina [PDF]

open access: yes, 2017
South American camelids are a source of livestock wealth in Andean countries. In Argentina,there is little information about camelid pathogens, and most of the literature data available areseroprevalence works against virus.
Calcagno, M. L.   +6 more
core  

Iron and other transition metals in Patagonian riverborne and windborne materials: Geochemical control and transport to the southern South Atlantic Ocean [PDF]

open access: yes, 2003
The bulk of particulate transition metals transported by Patagonian rivers shows an upper crustal composition. Riverine particulate 0.5 N HCl leachable trace metal concentrations are mainly controlled by Fe-oxides. Complexation of Fe by dissolved organic
Bidart, Susana M.   +4 more
core   +2 more sources

Caracterización tecnológica lítica de Acevedo 1 (Chubut, Argentina)

open access: yesComechingonia. Revista de Arqueología
Acevedo 1, located in Río Pico (Pico Valley, Chubut, Argentina), is an archaeological rock art site where human remains were recovered along with animal bones and a lithic assemblage. Diverse lines of evidence were studied there with the exception of the lithics.
Daniela S Cañete Mastrángelo   +4 more
openaire   +2 more sources

Shaping the human face: Periosteal bone modeling across ontogeny

open access: yesThe Anatomical Record, Volume 309, Issue 2, Page 271-292, February 2026.
Abstract Facial morphology is a defining aspect of Homo sapiens that distinguishes our species from fossil ancestors and plays a central role in estimating age, sex, and ancestry in both past and present populations. Understanding how the face develops during postnatal ontogeny is essential for interpreting adult facial variation.
Sarah E. Freidline   +5 more
wiley   +1 more source

Reemplazo total de cadera en un paciente con amputación supracondílea homolateral

open access: yesRevista de la Asociación Argentina de Ortopedia y Traumatología, 2020
Las fracturas de cadera en pacientes con amputación del miembro homolateral son lesiones infrecuentes que representan un reto para el cirujano ortopédico.
Edgar Gustavo Wagner, Reynaldo Quiroga
doaj   +1 more source

Dos nuevas especies de Pogonomyrmex (Hymenoptera: Formicidae) de la Argentina [PDF]

open access: yes, 2009
Se describen dos nuevas especies de Pogonomyrmex Mayr para la Argentina: P. mendozanus sp. nov. y P. kusnezovi sp. nov. Se presenta una lista actualizada de las especies de Pogonomyrmex de la Argentina junto con datos de distribución, comentarios sobre ...
Claver, Silvia   +1 more
core  

Nesting habitat of Chubut Steamer Ducks in Patagonia, Argentina

open access: yesEmu - Austral Ornithology, 2010
We studied nest-site selection of the flightless Chubut Steamer Duck (Tachyeresleucocephalus) along 292km of continental coastline and 59km of island coastline in Patagonia, Argentina, between 2004 and 2006. This area encompasses the main breeding range of the species. Almost all nests were on islands and islets, which ranged in area from 0.5 to 54.4ha
Agüero, Maria Laura   +2 more
openaire   +2 more sources

Balance hídrico en plantaciones de Pinus radiata en el NO de la Patagonia argentina

open access: yesEcología Austral, 2019
En la Región Andino Patagónica, el éxito de los sistemas silvopastoriles depende de la densidad de manejo forestal, que busca garantizar el mayor ingreso de agua al suelo para el forraje. El objetivo fue cuantificar y comparar los diferentes componentes
Federico A. Gomez   +4 more
doaj   +1 more source

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