Palynofloras of the Chigua (Devonian) and Malimán (Mississippian) formations from the Precordillera Argentina: age, correlation and discussion of the D/C boundary [PDF]
, 2009 Se presenta el análisis cualitativo y cuantitativo de las asociaciones palinológicas obtenidas de las formaciones Chigua (Devónico) y Malimán (Mississippiano), aflorantes en la Cuenca Río Blanco, Precordillera Argentina.
Azcuy, Carlos Leopoldo +2 more
core
The early Ludfordian leintwardinensis graptolite event and the Gorstian-Ludfordian boundary in Bohemia (Silurian, Czech Republic) [PDF]
, 2014 Loydell, David K. +2 more
core +2 more sources
A compilation of information and data on the Manson impact structure [PDF]
A problem for the impact hypothesis for the Cretaceous-Tertiary (K-T) mass extinction is the apparent absence of an identifiable impact site. The Manson Impact Structure is a candidate because it is the largest recognized in the U.S.; it is relatively ...
Anderson, Raymond R., Hartung, Jack B.
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Same taxonomic name, different species: a threat to stromatoporoid biodiversity research [PDF]
, 2012 Taxonomic inconsistencies between two published collections on Devonian stromatoporoids were examined. The studied collections contain stromatoporoids sampled from the Middle and Upper Devonian from the Ardennes (collection by Lecompte) and the Holy ...
Wolniewicz, P.
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Ar-40 to Ar-39 dating of pseudotachylites from the Witwatersrand basin, South Africa, with implications for the formation of the Vredefort Dome [PDF]
The formation of the Vredefort Dome, a structure in excess of 100 km in diameter and located in the approximate center of the Witwatersrand basin, is still the subject of lively geological controversy.
Boer, R. H. +5 more
core +1 more source
Massive wildfires followed oceanic anoxic events during the Late Devonian Frasnian-Famennian mass extinction. [PDF]
Sci AdvLu M +8 more
europepmc +1 more source
Evolution of Insect Pollination Before Angiosperms and Lessons for Modern Ecosystems. [PDF]
InsectsNegri I, Toledo ME.
europepmc +1 more source
The Silurian Hypothesis: Would It Be Possible to Detect an Industrial Civilization in the Geological Record? [PDF]
If an industrial civilization had existed on Earth many millions of years prior to ourown era, what traces would it have left and would they be detectable today?
Frank, Adam, Schmidt, Gavin A.
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Mass extinction triggered the early radiations of jawed vertebrates and their jawless relatives (gnathostomes). [PDF]
Sci AdvHagiwara W, Sallan L.
europepmc +1 more source
Decoupled phenotypic constraints framed by respiratory adaptation in the rise of land vertebrates. [PDF]
Sci AdvYu Y, Xu X, Benson RBJ.
europepmc +1 more source