Results 91 to 100 of about 3,600 (212)

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

Sci Rep, 2023
Del Mouro L, Becker-Kerber B, Janasi VA, de Araújo Carvalho M, Waichel BL, Lima EF, Rossetti LMM, Cruz V, Silva MS, Famelli N, Ortega-Hernández J.   +10 more
europepmc   +1 more source

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

Carnets 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  

Ediacaran Microfossils from the Ura Formation, Baikal-Patom Uplift, Siberia: Taxonomy and Biostratigraphic Significance [PDF]

, 2014
Abundant and diverse microfossils from shales of the uppermost Ura Formation, central Siberia, document early to middle Ediacaran life along the southeastern margin of the Siberian Platform.
Knoll, Andrew Herbert, Sergeev, Vladimir N., Vorob, Natalya G.   +2 more
core   +1 more source

Paleobiology of an Ediacaran acanthomorphic acritarch [PDF]

Goldschmidt2021 abstracts, 2021
Samuel Domino, Corentin Loron, Marie Catherine Sforna, Vincent Calers, Emmanuelle Javaux   +4 more
openaire   +1 more source

Biostratigrafie spodní křídy manínské jednotky (lom Butkov, Strážovské vrchy, Západní Karpaty) [PDF]

, 2003
This paper is a continuation of systematic stratigraphical research of Lower Cretaceous sequence of the Manín Unit excavated in the Butkov quarry. Calcareous deposits are significant especially by richness of ammonites.
Halásová, Eva, Reháková, Daniela, Skupien, Petr, Vašíček, Zdeněk   +3 more
core   +1 more source

Eukaryotic Organisms in Proterozoic Oceans [PDF]

, 2010
The geological record of protists begins well before the Ediacaran and Cambrian diversification of animals, but the antiquity of that history, its reliability as a chronicle of evolution and the causal inferences that can be drawn from it remain subjects
Cohen, Phoebe A, Hewitt, David, Javaux, Emmanuelle J., Knoll, Andrew Herbert   +3 more
core   +1 more source

A case for an active eukaryotic marine biosphere during the Proterozoic era. [PDF]

Proc Natl Acad Sci U S A, 2022
Eckford-Soper LK, Andersen KH, Hansen TF, Canfield DE.   +3 more
europepmc   +1 more source

Hydrocarbon-Generating Assemblages and Organic Matter Accumulation Patterns from the Basal Silurian Renheqiao Formation in Western Yunnan, China

Journal of Marine Science and Engineering
The organic-rich shales of the Upper Ordovician–Lower Silurian Renheqiao Formation in Yunnan, China, represent a valuable target for understanding marine hydrocarbon systems and offshore oil and gas exploration.
Shucan Zheng, Qinglai Feng, Xuesong Lu, Ronghe Jin, Xiaomei Nie   +4 more
doaj   +1 more source

Miospore assemblages from Late Ordovician (Katian-Hirnantian), Ghelli Formation, Alborz Mountain Range North-eastern Iran: Palaeophytogeographic and palaeoclimatic implications [PDF]

Journal of Sciences, Islamic Republic of Iran, 2016
Well-preserved miospore assemblages are recorded from the Late Ordovician (Katian-Hirnantian), Ghelli Formation in Pelmis-gorge at the north-eastern Alborz Mountain The palynomorphs were extracted from siliciclastic deposits which are well-dated by using
M. Ghavidel-syooki
doaj  

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

, 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