Results 21 to 30 of about 281 (131)

EARLY AND MIDDLE JURASSIC MARINE GASTROPODS FROM THE NEUQUÉN BASIN, ARGENTINA

open access: yesPublicación Electrónica de la Asociación Paleontológica Argentina
Systematic knowledge of Early and Middle Jurassic marine gastropods from Argentina has been supplied during the last decade through several contributions.
Mariel Ferrari
doaj   +1 more source

Tracking sea bed topography in the Jurassic. The Lotena Group in the Sierra de la Vaca Muerta (Neuquén Basin, Argentina)

open access: yesGeologica Acta, 2005
The Lotena Group is a clastic to evaporitic unit up to 650 m thick that accumulated during the Middle to Late Jurassic in the Neuquén Basin, western Argentina.
Carlos Zavala
doaj   +1 more source

Phylogeny of subtribe Gonolobinae (Apocynaceae‐Asclepiadoideae) based on molecular and morphological data with a revised generic classification

open access: yesTAXON, Volume 75, Issue 2, April 2026.
Abstract The presently most densely sampled molecular phylogeny of the widespread New World subtribe Gonolobinae is presented, including about 35% of the ca. 520 species. Sampling focused on an even representation of the three main areas of total Gonolobinae distribution, South America, Central/North America, and the West Indian Islands, and the ...
Sigrid Liede‐Schumann   +4 more
wiley   +1 more source

High-resolution analysis of an erg-margin system from the cretaceous Candeleros Formation (La Buitrera Paleontological Area, Río Negro Province, Argentina): an approach to different scales fluvial-aeolian interactions

open access: yesLatin American Journal of Sedimentology and Basin Analysis, 2021
Several studies have emphasized the complexity of the interaction between fluvial and aeolian processes at erg margin settings, and their importance in the resulting geological record. The Cretaceous Candeleros Formation in the “Cañadón de Las Tortugas”
Joaquín Pérez Mayoral   +3 more
doaj   +2 more sources

Late Triassic to Early Jurassic sedimentation in northern Neuquén Basin, Argentina: Tectosedimentary Evolution of the First Transgression

open access: yesGeologica Acta, 2005
The present paper interprets and discusses the Late Triassic-Early Jurassic of the first transgression at northern Neuquén basin (Argentina) and its paleostructural control due to ancient horsts and half-grabens.
Sílvia Lanes
doaj   +1 more source

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

NUEVOS DATOS PALINOLOGICOS DE LA FORMACION LAJAS, JURASICO MEDIO DE LA CUENCA NEUQUINA, ARGENTINA

open access: yesPublicación Electrónica de la Asociación Paleontológica Argentina, 2010
New palynological data from the Middle Jurassic Lajas Formation, Neuquén Basin, Argentina. Six spore types are described which have not been mentioned before from the Neuquén Basin: Antulsporites baculatus, Calamospora hartungiana, Dictyophyllidites ...
M. B. Sanchez
doaj  

Isotopic characterization of Jurassic evaporites. Aconcagua-Neuquén Basin, Argentina

open access: yesGeologica Acta, 2005
Isotopic analysis can be used to interpret the origin of evaporitic sediments. A preliminary isotopic study of strontium, oxygen and sulphur has been carried out in Ca-sulphate facies of Jurassic marine evaporates (Tábanos Formation and Auquilco ...
Gabriela Lo Forte   +2 more
doaj   +1 more source

High-precision U–Pb ages in the early Tithonian to early Berriasian and implications for the numerical age of the Jurassic–Cretaceous boundary [PDF]

open access: yesSolid Earth, 2019
The numerical age of the Jurassic–Cretaceous boundary has been controversial and difficult to determine. In this study, we present high-precision U–Pb geochronological data around the Jurassic–Cretaceous boundary in two distinct sections from different ...
L. Lena   +10 more
doaj   +1 more source

Wildland–Urban Interface Planning: Lessons From a Participatory Mapping Exercise

open access: yesGeo: Geography and Environment, Volume 13, Issue 1, January‐June 2026.
Short Abstract This study examines how participatory mapping can help capture stakeholder values, co‐develop future urban expansion scenarios, and inform spatial planning in San Martín de los Andes, Argentina, a city experiencing residential expansion.
Clara Mosso   +2 more
wiley   +1 more source

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