Results 71 to 80 of about 8,948 (183)

DOS NUEVOS MARSUPIALES "PSEUDODIPROTODONTES" DEL EOCENO DE PATAGONIA, ARGENTINA

open access: yesPublicación Electrónica de la Asociación Paleontológica Argentina, 2015
Quirogalestes alniagaucha n. gen. et sp. is an early Eocene Pichipilinae (Paucituberculata, Caenolestidae) distinguished from Pichipilus and Phonocdromus by the larger size of its p3, and by having a lower molar pattern that is primitive with respect to ...
Francisco J. Goin, Adriana M. Candela
doaj  

The Southernmost Known Population of the Monito Del Monte, Dromiciops gliroides [PDF]

open access: yesEcol Evol
A range extension for a relict south American marsupial. ABSTRACT The monito del monte (genus Dromiciops) is a small arboreal marsupial endemic to the temperate rainforests of southern South America, and the sole extant representative of the order Microbiotheria. This lineage, considered a sister group of Australian marsupials, is of great evolutionary,
Nespolo R   +8 more
europepmc   +2 more sources

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  

Future Climate Change Threatens the Genetic Diversity and Distribution of Some South American Freshwater Crustaceans of the Genus Aegla

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 1, January 2026.
ABSTRACT Climate change significantly threatens biodiversity, particularly in freshwater ecosystems, which host many endemic and threatened species. Among them, aeglids stand out as strictly endemic, ecologically important and highly threatened crustaceans, making them a relevant model for investigating the impacts of climate change on aquatic ...
Gislaine Puli   +4 more
wiley   +1 more source

A new meiolaniform turtle from the Maastrichtian of Northern Patagonia, Argentina

open access: yesActa Palaeontologica Polonica
Meiolaniformes are a group of chelonians including the famous horned-turtles Niolamia argentina (Patagonia) and Meiolania platyceps (Australia). In South America, the Late Cretaceous meiolaniforms are represented by two named taxa: Patagoniaemys ...
Federico L. Agnolin   +5 more
doaj   +1 more source

Caenogastropods and heterobranch gastropods from the Hettangian deposits of Luxembourg: palaeobiogeography and Early Jurassic faunal recovery in the western Tethys

open access: yesPapers in Palaeontology, Volume 12, Issue 1, January/February 2026.
Abstract We describe the Hettangian Caenogastropoda and Heterobranchia of the Luxembourg Sandstone Formation, a wedge of clastic sediments deposited along the eastern margin of Paris Basin during the Early Jurassic. Five new genera and 11 new species are erected: Bourguetia bipartita sp. nov., Globularia delsatei sp. nov., Oonia feidtorum sp.
Stefano Monari   +3 more
wiley   +1 more source

Patagonian Imaginary Nature: Colonial Narratives in Documentary Films on Subnational Spaces (1920–1955)

open access: yesBulletin of Latin American Research, Volume 45, Issue 1, January 2026.
This study contributes to the ongoing historical examination of ecological and postcolonial questions in Latin America through the lens of new media genre narratives. Early 20th‐century documentary films of Argentine Patagonia institutionalised a natural binary opposition, positioning those challenging colonial power relations based on natural ...
Cielo Zaidenwerg, Mauricio Dimant
wiley   +1 more source

Adverse social determinats and risk for congenital anomalies [PDF]

open access: yes, 2014
INTRODUCCIÓN: Diferentes trabajos han relacionando condiciones sociales adversas a nivel familiar y regional con resultados perinatales (mortalidad neonatal, bajo peso y prematuridad); sin embargo, pocos estudiaron el efecto de la pobreza sobre anomalías
Campaña, Hebe   +8 more
core   +3 more sources

Chloroplast Genome Characterization of Benthamiella Patagonica (Benthamielleae, Solanaceae)

open access: yesEcology and Evolution, Volume 15, Issue 12, December 2025.
This study presents the first complete chloroplast genome (155,570 bp) of Benthamiella patagonica, representing the early‐diverging tribe Benthamielleae within Solanaceae. Comparative genomic analyses revealed high structural similarity with other Solanaceae species, while phylogenetic reconstruction confirmed B.
Abdullah   +6 more
wiley   +1 more source

Corrales de piedra, campos abiertos y pampas de camaruco: Memorias de relacionalidad en la meseta central de Chubut Stone yards, open fields and sacred places: Memories of relatedness in the Chubut´s central plateau

open access: yesMemoria Americana, 2008
La "cuestión indígena" como política de estado en Argentina ha estado acompañada por la elaboración académica de mapas étnicos. Las definiciones hegemónicas de estas entidades han presupuesto generalmente algún elemento "esencial" como, por ejemplo ...
Ana Ramos, Walter Delrio
doaj  

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