Results 141 to 150 of about 16,764 (247)
Comment on ‘‘Geodynamic evolution of the SW Europe [PDF]
Ribeiro et al. [2007] have presented a geodynamic view of the SW Iberia Variscides based on data from Portugal. Their treatment of already published data is commendable, and the knowledge gained will surely encourage the discussion of the SWEurope ...
Chichorro, Martim +2 more
core +1 more source
Uranium isotope evidence for an expansion of anoxia in terminal Ediacaran oceans
Anoxic and iron-rich oceanic conditions prevailed throughout most of the Archean and Proterozoic (4000 to c.540 million years ago, Ma), but the oceans are hypothesised to have become progressively oxygen-rich during the Ediacaran–Cambrian transition ...
R. Tostevin +7 more
semanticscholar +1 more source
Evolution: An Ediacaran ecdysozoan
A new study describes a fossilized ecdysozoan from Ediacaran rocks, extending the body fossil record for this hyper-diverse group and emphasizing the pivotal insights provided by Ediacaran fossils in documenting the early evolutionary history of major animal clades.
openaire +2 more sources
At the Ediacaran/Cambrian boundary, ecosystems witnessed an unparalleled biological innovation: the appearance of shelled animals. Here, we report new paleoecological and paleobiological data on Cloudina, which was one of the most abundant shelled ...
Bruno Becker-Kerber +5 more
doaj +1 more source
The enduring Ediacaran paleomagnetic enigma
M. Domeier +6 more
semanticscholar +1 more source
Developing proxies to constrain redox gradients in terminal Ediacaran oceans [PDF]
There is a long-standing interest in the relationship between the rise of early Metazoans and changes in the redox structure of the oceans. As such, there is a need for reliable geochemical proxy archives that record palaeo-redox.
Tostevin, R
core
Global and local drivers of the Ediacaran Shuram carbon isotope excursion
J. Busch +7 more
semanticscholar +1 more source
In silico transitions to multicellularity
The emergence of multicellularity and developmental programs are among the major problems of evolutionary biology. Traditionally, research in this area has been based on the combination of data analysis and experimental work on one hand and theoretical ...
Duran-Nebreda, Salva, Solé, Ricard V.
core +1 more source

