Results 31 to 40 of about 14,980 (261)

Ediacara biota flourished in oligotrophic and bacterially dominated marine environments across Baltica. [PDF]

, 2018
Middle-to-late Ediacaran (575-541 Ma) marine sedimentary rocks record the first appearance of macroscopic, multicellular body fossils, yet little is known about the environments and food sources that sustained this enigmatic fauna.
Bekker, Andrey, Junium, Christopher K, Kuznetsov, Anton, Love, Gordon D, Pehr, Kelden, Podkovyrov, Victor, Shumlyanskyy, Leonid, Sokur, Tetyana   +7 more
core   +3 more sources

Himatiichnus mangano igen. et isp. nov., a scalidophoran trace fossil from the late Ediacaran of Namibia. [PDF]

R Soc Open Sci
Turk KA, Pulsipher MA, Mocke H, Laflamme M, Darroch SAF.   +4 more
europepmc   +2 more sources

The achievements of Volodymyr Grytsenko in stratigraphy, paleontology and paleoenvironments and in the field of the geoheritage

Geo&Bio, 2018
This paper is about the achievements of V. P. Grytsenko in scientific and pedagogical activity, his discoveries in the field of paleontology and stratigraphy.
M. Reshetnik, K. Rudenko
doaj   +1 more source

Recycling of the Proterozoic crystalline basement in the Coastal Block (Moroccan Meseta): New insights for understanding the geodynamic evolution of the northern peri-Gondwanan realm [PDF]

, 2018
Detrital zircon age spectra from the siliciclastic rocks of the Lalla Mouchaa Calcschists and El Jadida Dolomitic formations (the Coastal Block of the Moroccan Meseta) are dominated by Paleoproterozoic and Ediacaran ages.
El Attari, Ahmed, El Houicha, Mohamed, Ennih, Nasser, Ezzouhairi, Hassan, Fekkak, Abdelilah, Gama, Cristina, Jouhari, Abdellatif, Pereira, Manuel Francisco, Silva, Jose Brandão   +8 more
core   +1 more source

Evidence for high-frequency oxygenation of Ediacaran shelf seafloor during early evolution of complex life

Communications Earth & Environment, 2023
Increasing oxygenation of the early Ediacaran Ocean is thought to have been responsible for the emergence of early animals. Although geochemical studies have suggested periods of oceanic oxygenation in the Ediacaran, direct evidence for seafloor ...
Liangxuan Jiao, Zhenbing She, Dominic Papineau, Chao Zhang, Thomas J. Algeo, Matthew S. Dodd, Genming Luo, Kenan Cao, Chao Li   +8 more
doaj   +1 more source

Sedimentology and stratigraphic correlation of Vendian deposits in the southwestern Siberian Craton: Major contribution of an exocratonic clastic source to sedimentary systems

Литосфера, 2018
The study focuses on the sedimentation and stratigraphy of a large Vendian (Ediacaran) sedimentary basin in the southwestern Siberian craton, with implications for the origin of its units and subunits.
Julius K. Sovetov
doaj   +1 more source

Engineering the Cambrian explosion: the earliest bioturbators as ecosystem engineers [PDF]

, 2017
By applying modern biological criteria to trace fossil types and assessing burrow morphology, complexity, depth, potential burrow function and the likelihood of bioirrigation, we assign ecosystem engineering impact (EEI) values to the key ichnotaxa in ...
Callow, Richard H. T., Callow, Richard H.T., Herringshaw, Liam G., McIlroy, Duncan   +3 more
core   +1 more source

The role of volcanic-derived clays in the preservation of Ediacaran biota from the Itajaí Basin (ca. 563 Ma, Brazil)

Scientific Reports, 2021
The early evolution of metazoans has been reconstructed by studies on exceptionally preserved molds in siliciclastic rocks from the Ediacaran Period.
Bruno Becker-Kerber, Abderrazak El Albani, Kurt Konhauser, Ahmed Abd Elmola, Claude Fontaine, Paulo S. G. Paim, Arnaud Mazurier, Gustavo M. E. M. Prado, Douglas Galante, Pedro B. Kerber, Ana L. Z. da Rosa, Thomas R. Fairchild, Alain Meunier, Mírian L. A. F. Pacheco   +13 more
doaj   +1 more source

The laurentian record of neoproterozoic glaciation, tectonism, and eukaryotic evolution in Death Vally, California [PDF]

, 2013
Neoproterozoic strata in Death Valley, California contain eukaryotic microfossils and glacial deposits that have been used to assess the severity of putative Snowball Earth events and the biological response to extreme environmental change.
A. E. Fallick, A. R. Prave, Aitken, ALLISON, Allison, Armin, Bekker, Berney, BOND, Bowring, Brasier, BURCHFIEL, CLOUD, Cohen, Colpron, CORSETTI, Corsetti, Corsetti, D. Trotzuk, Dalziel, Dalziel, E. F. Smith, Erwin, F. A. Macdonald, F. Waechter, Fanning, FLECK, Goodge, Gutstadt, HOFFMAN, Hoffman, Hoffmann, James, K. Oates, Karlstrom, Kaufman, Kenny, Knauth, Labotka, Licari, Love, Lund, Macdonald, Macdonald, MILLER, Moores, NOBLE, Prave, R. Petterson, S. B. Pruss, Sears, SNOW, Snow, Snow, Timmons, Tucker, Vorob'eva, Walker, WERNICKE, Wright, WRIGHT, Yin, Zhou   +62 more
core   +1 more source

Uncovering the Ediacaran phosphorus cycle

Nature, 2023
Phosphorus is a limiting nutrient that is thought to control oceanic oxygen levels to a large extent1-3. A possible increase in marine phosphorus concentrations during the Ediacaran Period (about 635-539 million years ago) has been proposed as a driver for increasing oxygen levels4-6.
Matthew S. Dodd, Wei Shi, Chao Li, Zihu Zhang, Meng Cheng, Haodong Gu, Dalton S. Hardisty, Sean J. Loyd, Malcolm W. Wallace, Ashleigh vS. Hood, Kelsey Lamothe, Benjamin J. W. Mills, Simon W. Poulton, Timothy W. Lyons   +13 more
openaire   +4 more sources