Diet and habitat of toxodont megaherbivores (Mammalia, Notoungulata) from the late Quaternary of South and Central America
Argentina ; Bolivia ; Brazil ; Central America ; Diet ; Habitat ; Holocene ; Honduras ; Isotope analysis ; Mammal ; Palaeo-ecology ; Palaeontology ; Peru ; Pleistocene ; Quaternary ; South America
These toxodont megaherbivores were endemic to South and Central America during the late Quaternary. Isotopic signatures of 47 toxodont teeth were analysed to reconstruct diet and ancient habitat. Tooth enamel carbon isotope data from 6 regions
of South and Central America indicate significant differences in toxodont diet and local vegetation during the late Quaternary.
Aquifer ; Coastal environment ; Drinking water ; Evapotranspiration ; Groundwater ; Mauritania ; Model ; Quaternary ; Sea level ; Water resources
(Continental Terminal) during the Quaternary. It highlights the dominant role of evaporation in the evolution of water table of the Trarza aquifer, whose impact is similar to the one of the Quaternary marine level increase.
Within-taxon morphological diversity in late-Quaternary Neotoma as a paleoenvironmental indicator, Bonneville Basin, northwestern Utah, USA
Arid area ; Biodiversity ; Climatic index ; Holocene ; Palaeo-ecology ; Palaeo-environment ; Precipitation ; Quaternary ; Rodent ; United States of America ; Utah
Ecological data indicate that as the amount of precipitation in an arid areas increases, so too does mammalian taxonomic richness. The correspondence has been found in two late-Quaternary mammalian faunas from Utah, one from Homestead Cave
The organic deposits derived from the mangrove swamps form reliable stratigraphic makers within the Late Quaternary sequence of Kerala-Konkan Basin. Three generations of such deposits have been identified. Pollen analyses confirm that the deposits
The late Quaternary evolution of the Negro River, Amazon, Brazil : implications for island and floodplain formation in large anabranching tropical systems
Amazon Basin ; Braided channel ; Brazil ; Floodplain ; Holocene ; Palaeohydrology ; Quaternary ; Sediment transport ; Stream ; Tectonics ; Tropical zone
The progradational behavior of the Rio Negro, filling tectonic basins as successive sediment traps with sand in the upper basins and fines in the downstream ones, illustrates how a large river system responses to profound changes in Late Quaternary
Rivers turned to rock : Late Quaternary alluvial induration influencing the behaviour and morphology of an anabranching river in the Australian monsoon tropics
Australia ; Braided channel ; Climatic variation ; Monsoon ; Quaternary ; Queensland ; Sediment transport ; Stream ; Th/U dating ; Thermoluminescence ; Tropical zone
Late Quaternary alluvial induration has greatly influenced contemporary channel morphology on the anabranching Gilbert River in the monsoon tropics of the Gulf of Carpentaria. A tropical climate and reactive catchment lithology have enhanced
A record of Late-Quaternary moisture balance change and vegetation response from the White Mountains, New Hampshire
Holocene ; Lake ; Lake level ; Moisture ; Palaeobiogeography ; Palynology ; Pollen diagram ; Quaternary ; United States of America ; Vegetation dynamics