Buscar
Mostrando ítems 1-10 de 18
The worm Palaeoscolex from the Cambrian of NW Argentina: extending the biogeography of Cambrian priapulids to South America.
(Taylor & Francis Ltd, 2011-06)
Over one hundred years of palaeontological research in northwestern Argentina has provided extensive knowledge of Andean lower Palaeozoic fossil assemblages, with trilobites, graptolites, brachiopods and echinoderms being ...
Paleobiology of the Itajaí Basin (Ediacaran, Santa Catarina, Brazil): evolutionary, paleoecological and taphonomical implications
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Ecologia e Recursos Naturais - PPGERNCâmpus São Carlos, 2020-06-04)
New studies on the geologic history of Earth are increasingly revealing the complex relationships among evolutionary patterns, diversification of major groups, and environmental changes. In the fossil record of the Ediacaran ...
Discs and discord: The paleontological record of Ediacaran discoidal structures in the south American continent
(Elsevier B.V., 2019-01-01)
Discoidal sedimentary structures are commonly described in Proterozoic strata, and even more common in Ediacaran to lower Cambrian sedimentary successions. Many abiotic processes are able to produce such circular or discoidal ...
Bioaccumulation of some trace elements in the biota of the hydrothermal fields of the Guaymas Basin (Gulf of California)
(Boletín de la Sociedad Geológica Mexicana, 2009)
Data from the hydrothermally influenced Guaymas Basin of the Gulf of California are presented on the concentration and distribution of Ag, As, Au, Ba, Cd, Co, Cr, Cu, Fe, Hg, Mn, Pb, Sb, Se, and Zn in different tissues of ...
Ediacaran metazoan fossil record from South America and its implications in the studies about origin and complexification of animal lifeO registro fossilífero de metazoários ediacaranos na América do Sul e suas implicações nos estudos sobre origem e complexificação da vida animal
(Universidade de São Paulo, Instituto de Geociências, 2013)
Discs and discord: The paleontological record of Ediacaran discoidal structures in the south American continent
(Pergamon-Elsevier Science Ltd, 2019-01)
Discoidal sedimentary structures are commonly described in Proterozoic strata, and even more common in Ediacaran to lower Cambrian sedimentary successions. Many abiotic processes are able to produce such circular or discoidal ...
Data on hydrocarbons in sediment samples, and its body burden levels in tissues of Anomalocardia flexuosa from toxicity testing
(2020-08-01)
The analysis of hydrocarbons in terms of individual compounds is relevant to understand the origin and source of these substances, as well as its distribution in environmental compartments, including sediments and biota. ...
Determinación de la calidad de agua mediante el uso de diatomeas bentónicas en el tramo padre Carollo-Paus, del Rio Blanco. parroquia Rio Blanco, cantón Morona, provincia de Morona Santiago.
(Escuela Superior Politécnica de Chimborazo, 2018-12)
The objective was to determine the water quality of the Río Blanco through the use of benthic diatoms and using the IPS Biological Index, which does not condition the ecological characteristics and population dynamics of ...
Concentração de metais traços na água, sedimento em ascídia Microcosmus exasperatus (Heller, 1878) na baía de Paranaguá, litoral do Paraná - Brasil
(Universidade Tecnológica Federal do ParanáCuritibaBrasilPrograma de Pós-Graduação em Ciência e Tecnologia AmbientalUTFPR, 2020-08-25)
Estuaries are marine environments with high biological productivity that favor human occupation and economic activities, which results in anthropic actions. The water quality of the Paranaguá Estuarine Complex in the marine ...