Results 71 to 80 of about 1,147 (200)

Paleontological evidence for Late Cambrian in the Arburese area, SW Sardinia

open access: yesCarnets de Géologie, 2005
New palynological investigations allowed a better definition of the age of terrigenous deposits of the Monte Fonnesu tectonic Unit, exposed in the Arburese area (SW Sardinia).
Musumeci Giovanni   +3 more
doaj  

Paleoclimate changes and ecosystem responses of the Bulgarian Black Sea zone during the last 26000 years [PDF]

open access: yesNature Conservation
Multi-proxy analysis (spore-pollen, dinoflagellate cysts, other non-pollen palynomorphs (NPPs), radiocarbon dating and lithology) was performed on marine sediments from three new cores retrieved during the two cruise expeditions on board the Research ...
Mariana Filipova-Marinova   +2 more
doaj   +3 more sources

CIMP Faro'09 - II Joint meeting of spores/ pollen and acritarch subcommissions - Abstracts [PDF]

open access: yes, 2014
This meeting builds on the last CIMP meeting held in 2007 in Lisbon and the suggestion of organizing a Second Joint Meeting of Spore/Pollen and Acritarch Subcommissions in Portugal was warmly accepted by us.

core   +1 more source

Late Devonian and Carboniferous acritarch stratigraphy and paleogeography [PDF]

open access: yes, 1986
Detailed analysis of literature on late Devonian and Carboniferous acritarchs learns that, up to now, late Devonian acritarch zonation has been proposed only for Algeria, U.S.A. and Belgium.
Vanguestaine, M.
core  

“Complexo” Veryhachium: Acritarcos Indicativos do Siluriano? [PDF]

open access: yesAnuário do Instituto de Geociências, 2005
Acritarchs are known to be related to cysts of marine microphytoplankton, and are reliable indicators of marine paleoenvironments. The acritarch genus Veryhachium was erected by Deunff (1954) to encompass an entire plexus of microfossils first ...
Tereza Regina Machado Cardoso   +1 more
doaj  

Truncated bimodal latitudinal diversity gradient in early Paleozoic phytoplankton. [PDF]

open access: yesSci Adv, 2021
Zacaï A   +6 more
europepmc   +1 more source

Acritarch assemblages from the Silurian Pomeranian Caledonides and their foreland [PDF]

open access: yes, 2000
Comprehensive palynological studies of the Silurian rocks of the Pomeranian Caledonides are described, the first since Eisenack's (1972) work. 250 clastic rock samples were analysed, all from deep boreholes.
Jachowicz, M.
core  

Acritarch (marine microphytoplankton) diversity in an Early Ordovician deep-water setting (the Skiddaw Group, northern England) : implications for the relationship between sea-level change and phytoplankton diversity [PDF]

open access: yes, 2009
Early Ordovician acritarch (microphytoplankton) assemblages from an outer shelf to slope facies in northern England show changes in diversity that parallel changes in sea level, with high diversity occurring during lowstands and low diversity during ...
Stewart G. Molyneux   +1 more
core   +1 more source

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