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Evolution of Precambrian life in the Brazilian geological record
(CAMBRIDGE UNIV PRESSNEW YORK, 2012)
Precambrian rocks comprise nearly one-quarter of the surface of Brazil and range from Paleoarchean (ca. 3.6 Ga) to the latest Ediacaran (0.542 Ga) in age. Except for controversial phosphatized 'embryo-like' microfossils ...
New mesozoic and cenozoic fossils from Ecuador: invertebrates, vertebrates, plants, and microfossils
Ecuador is well known for its extensive extant biodiversity, however, its paleobiodiversity is still poorly explored. Here we report seven new Mesozoic and Cenozoic fossil localities from the Pacific coast, inter-Andean ...
Integrated stratigraphy and paleontology of the lower Miocene Monte León Formation, southeastern Patagonia, Argentina: Unraveling paleonvironmental changes and factors controlling sedimentation
(Elsevier Science, 2020-03)
Marine sedimentary rocks of the lower Miocene Monte León Formation of southeastern Patagonia (Austral Basin), Argentina are important geological archives for better understanding regional tectonics, paleoenvironments, ...
Palaeontology, sedimentology, and biostratigraphy of a fossiliferous outcrop of the Early Miocene Querales Formation, Falcón Basin, Venezuela
(Springer, 2016-09)
The top of the Querales Formation is well exposed at the Quebrada Corralito section, 17 m thick, in northern Venezuela. The section, dominated by siliciclastic accumulations of fine-grained sediments, preserves one cycle ...
Sponge spicules indicate Holocene environmental changes on the Nabileque River floodplain, southern Pantanal, Brazil
(2013-01-01)
Sponge spicules are siliceous microfossils that are especially useful for analysis of sandy fluvio-lacustrine sediments. Sponge spicules in a long sediment core (~550 cm below surface), consisting of fine sand, sandy silt, ...
Sponge spicules indicate Holocene environmental changes on the Nabileque River floodplain, southern Pantanal, Brazil
(2013-01-01)
Sponge spicules are siliceous microfossils that are especially useful for analysis of sandy fluvio-lacustrine sediments. Sponge spicules in a long sediment core (~550 cm below surface), consisting of fine sand, sandy silt, ...
Postglacial environments in the southern coast of Lago Fagnano, central Tierra del Fuego, Argentina, based on pollen and fungal microfossils analyses
(Elsevier Science, 2017-03)
We analyzed a peat-bog sequence from the central region of Tierra del Fuego, southernmost Patagonia, to reconstruct the environmental changes over the past 15,000 years. Postglacial vegetation was mainly composed by ...
Late Holocene plant use in lowland central Argentina: Microfossil evidence from dental calculus
(Elsevier, 2019-08)
The central region of Argentina, especially Córdoba province, has been the subject of numerous bioarchaeologicaland archaeobotanical studies over recent years. However, the available information related to plant use hasbeen ...