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Biodiversity of the Ediacaran-early Cambrian transition in northwestern Argentina and related areas
(Muséum d'Histoire Naturelle, 2012-03)
The Ediacaran-early Cambrian is a significant time of geological history in terms of biodiversity dynamics. During this time-span a particular soft-bodied fauna developed and disappeared, being replaced by the emergent ...
Ediacaran discs from South America: Probable soft-bodied macrofossils unlock the paleogeography of the Clymene Ocean
(Nature Publishing Group, 2016-07)
The origin, affinity and paleoecology of macrofossils of soft-bodied organisms of the terminal Ediacaran Period have been highly debated. Previous discoveries in South America are restricted to small shelly metazoans of ...
Microbially induced pseudotraces from a Pantanal soda lake, Brazil: Alternative interpretations for Ediacaran simple trails and their limits
(Geological Society of America, 2020-05)
Despite the absence of metazoans, structures resembling animal traces are common in a soda lake from the western Brazil Pantanal wetland. Pantanal soda lakes are ecologically extreme environments that preclude complex life, ...
Palaeontological analyses across the Ediacaran-Cambrian boundary, Upper Corumba Group, Brazil
(Consejo Superior Investigaciones Cientificas-csic, 2019-01-01)
This work presents the results of a palaeontological analysis focused on twenty-six species sampled in five sections of the Tamengo and Guaicurus formations, Corumba and Ladario regions: Corcal and Laginha quarries, Porto ...
Sedimentary evolution and tectonic setting of the Itapucumi Group, Ediacaran, northern Paraguay: From Rodinia break-up to West Gondwana amalgamation
(Elsevier Science, 2019-03)
The Itapucumi Group is recognized worldwide due to its well-preserved Ediacaran fossil assemblage. Despite its paleontological importance, this unit remains as the least studied South American Neoproterozoic sedimentary ...
Sedimentary evolution and tectonic setting of the Itapucumi Group, Ediacaran, northern Paraguay: From Rodinia break-up to West Gondwana amalgamation
(Elsevier B.V., 2019-03-01)
The Itapucumi Group is recognized worldwide due to its well-preserved Ediacaran fossil assemblage. Despite its paleontological importance, this unit remains as the least studied South American Neoproterozoic sedimentary ...
Biostratigraphy
(Elsevier, 2009)
Neoproterozoic stromatolites were first recognised in the Río de la Plata Craton (RPC) by González Bonorino (1954) in the Sierras Bayas Group (Argentina). The first body fossils were also described from this unit by Fairchild ...
Procesos de silicificación de las unidades del Turoniano – Campaniano en la Cuenca Cretácica Colombiana
(Universidad Nacional de ColombiaBogotá - Ciencias - Maestría en Ciencias - GeologíaDepartamento de GeocienciasFacultad de CienciasBogotá, ColombiaUniversidad Nacional de Colombia - Sede Bogotá, 2020)
La silicificación, en el registro litológico del Cretácico superior colombiano se encuentra
presente en ciertas unidades litoestratigráficas de las cuencas sedimentarias del valle del
río Magdalena y la cordillera oriental, ...