Results 81 to 90 of about 3,539 (164)

Phytoplankton dynamics from the Cambrian Explosion to the onset of the Great Ordovician Biodiversification Event: a review of Cambrian acritarch diversity [PDF]

open access: yes, 2015
Most early Palaeozoic acritarchs are thought to represent a part of the marine phytoplankton and so constituted a significant element at the base of the marine trophic chain during the ‘Cambrian Explosion’ and the subsequent ‘Great Ordovician ...
Molyneux, Stewart G.   +4 more
core   +3 more sources

Pre-Cambrian to Palaeozoic Palaeopalynology and Palaeobotany

open access: yesCarnets de Géologie, 2005
A set of 14 abstracts and short papers (extended abstracts) of presentations given at a meeting organized by the NFSR Working Group, "Micropaléontologie végétale et Palynologie (MVP)", held on May 11, 2005 at the University of Liège, Belgium.
Steemans Philippe, Javaux Emmanuelle
doaj  

Acritarcos e Prasinófitas do Siluriano da Bacia do Amazonas: um Poderoso Auxílio na Calibração Bioestratigráfica do Grupo Trombetas [PDF]

open access: yesAnuário do Instituto de Geociências, 2005
This paper deals with borehole data from 1.587,80-1.660,75 m interval of the well 1-AM-1-AM, which represents the most complete section of the Silurian in Amazon basin.
Tereza Regina Machado Cardoso   +1 more
doaj  

MICROPALEONTOLOGY OF THE LOWER MESOPROTEROZOIC ROPER GROUP, AUSTRALIA, AND IMPLICATIONS FOR EARLY EUKARYOTIC EVOLUTION [PDF]

open access: yes, 2016
ELiTE: Early Life Traces, Evolution, and Implications for ...
Javaux, Emmanuelle, Knoll, Andrew H.
core   +1 more source

The role of marine microphytoplankton in the Ordovician Biodiversification Event

open access: yesCarnets de Géologie, 2005
The Ordovician fossil record provides evidence of the most rapid, long sustained burst of biotic diversification in the history of marine life on Earth (The Great Ordovician Biodiversification Event, Webby et alii, 2004).
Servais Thomas   +2 more
doaj  

Organic walled microfossils in wet peperites from the early Cretaceous Paraná-Etendeka volcanism of Brazil. [PDF]

open access: yesSci Rep, 2023
Del Mouro L   +10 more
europepmc   +1 more source

Correlation of the 83w421 Kortrijk (Sint-Antonius) and 83w44 Kortrijk (Lust) boreholes with acritarchs (late Aeronian-early Telychian, Silurian, Belgium) [PDF]

open access: yes, 2006
25 samples from the 83W421 Kortrijk (Sint-Antonius) and 83W44 Kortrijk (Lust) boreholes are investigated. Acritarchs provide a more reliable and precise correlation of these two boreholes than graptolites and chitinozoans because of large barren and/or ...
Wauthoz, B.
core  

A Middle Cambrian age for the Ediacara-type fauna from the Booley Bay Formation, County Wexford, Ireland: new acritarch data and their implications

open access: yesCarnets de Géologie, 2005
Ten years ago a well-preserved Ediacara-type fauna was recorded for the first time in sediments at the type section of the Lower Palaeozoic Booley Bay Formation in County Wexford, Ireland (Crimes et alii, 1995).
Brück Peter, Vanguestaine Michel
doaj  

Chitinozoans from the Ordovician-Silurian Boundary Beds in the Eastern Cincinnati Region in Ohio and Kentucky [PDF]

open access: yes, 1985
Author Institution: Geological Survey of Sweden ; Department of Geology and Mineralogy, The Ohio State UniversityRepresentatives of seven species of chitinozoans, one of which is new (Ancyrochitina belfastensis n.
Bergstrom, Stig M., Grahn, Yngve
core  

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