Results 101 to 110 of about 8,670 (237)
Autopsy of a biological extinction example: the Frasnian-Famennian boundary crisis (364 Ma) [PDF]
Without studying the causes of the F/F boundary mass extinction, the precise analysis of ostracod species shows evolutionary process only discernable it the global scale.
Casier, J.G., Lethiers, F.
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Multiverse Predictions for Habitability: Fraction of Life that Develops Intelligence
Do mass extinctions affect the development of intelligence? If so, we may expect to be in a universe that is exceptionally placid. We consider the effects of impacts, supervolcanoes, global glaciations, and nearby gamma ray bursts, and how their rates ...
Sandora, McCullen
core +1 more source
Development of bryozoaus (bryozoa type) on the border of devonian carboniferous in western part of the altai sayanskaya folded area [PDF]
The features of pearlside development in Late Devonian and Early Carboniferous time in western part of the Altai-Sayanskaya folded area have been revealed.
Tolokonnikova, Z. A.
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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.
core +1 more source
The early Ludfordian leintwardinensis graptolite event and the Gorstian-Ludfordian boundary in Bohemia (Silurian, Czech Republic) [PDF]
Loydell, David K. +2 more
core +2 more sources
Same taxonomic name, different species: a threat to stromatoporoid biodiversity research [PDF]
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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