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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 ...
Calibrating the Ediacaran-Cambrian transition in the SW Gondwana
(Consejo Superior Investigaciones Cientificas-csic, 2019-01-01)
The paleontological, isotopic and geochronological data summarized below support the paleogeographic and temporal correlation between Itapucumi (Paraguay) and Corumba (Brazil) groups, suggesting a coeval sedimentary evolution ...
Calibrating the Ediacaran-Cambrian transition in the SW Gondwana
(2019-01-01)
The paleontological, isotopic and geochronological data summarized below support the paleogeographic and temporal correlation between Itapucumi (Paraguay) and Corumbá (Brazil) groups, suggesting a coeval sedimentary evolution ...
Enduring evolutionary embellishment of cloudinids in the Cambrian
(Royal Soc, 2021-12-08)
The Ediacaran-Cambrian transition and the following Cambrian Explosion are among the most fundamental events in the evolutionary history of animals. Understanding these events is enhanced when phylogenetic linkages can be ...
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 ...
Goldilocks at the dawn of complex life: mountains might have damaged Ediacaran–Cambrian ecosystems and prompted an early Cambrian greenhouse world
(2021-12-01)
We combine U–Pb in-situ carbonate dating, elemental and isotope constraints to calibrate the synergy of integrated mountain-basin evolution in western Gondwana. We show that deposition of the Bambuí Group coincides with ...
Global or regional? Constraining the origins of the middle Bambuí carbon cycle anomaly in Brazil
(2020-09-15)
The Ediacaran-Cambrian Bambuí Group in Brazil records an anomalously positive excursion in carbonate carbon isotopes (δ13Ccarb) with a sustained plateau of ca. +15‰ (aka the Middle Bambuí Excursion–MIBE). Considering that ...
Trace fossils and the agronmomic revolution at the Neoproterozoic – Cambrian transition in Southwest Gondwana
(Elsevier, 2009-12)
The Ediacaran-Early Cambrian transition in the southwestern margin of Gondwana is represented in the Andean Margin of South America by the thick sequence of the Puncoviscana Basin. In southern Africa, the Nama and Vanrhynsdorp ...
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 ...