Results 61 to 70 of about 16,764 (247)

Comment on “Bilaterian Burrows and Grazing Behavior at >585 Million Years Ago” [PDF]

, 2013
Pecoits et al. (Reports, 29 June 2012, p. 1693) describe bilaterian trace fossils and assign them an Ediacaran age based on the age of a granite interpreted as intrusive.
Beri, Angeles, Bettucci Sanchez, Leda, Bossi, Jorge, Gaucher, Claudio, Poire, Daniel Gustavo   +4 more
core   +2 more sources

A New Conulariid (Cnidaria, Scyphozoa) From the Terminal Ediacaran of Brazil

Frontiers in Earth Science, 2022
Paraconularia ediacara n. sp., the oldest documented conulariid cnidarian, is described based on a compressed thin specimen from the terminal Ediacaran Tamengo Formation near Corumbá, Mato Grosso do Sul State, Brazil.
J. Leme, Heyo Van Iten, M. Simões
semanticscholar   +1 more source

Ocean acidification in the aftermath of the Marinoan glaciation [PDF]

, 2014
Boron isotope patterns preserved in cap carbonates deposited in the aftermath of the younger Cryogenian (Marinoan, ca. 635 Ma) glaciation confirm a temporary ocean acidification event on the continental margin of the southern Congo craton, Namibia.
Fallick, Anthony E., Kasemann, Simone A., Ohnemueller, Frank, Prave, Anthony R.   +3 more
core   +1 more source

The occurrence of Dickinsonia in non-marine facies

Estudios Geologicos, 2019
Dickinsonia in the central Urals occurs in a succession transitional from marginal marine to non-marine. Even within this sequence Dickinsonia appears to be restricted to the least marine facies interpreted as a coastal lagoon surrounded by tidal flats ...
N. I. Bobkov, A. V. Kolesnikov, A. V. Maslov, D. V. Grazhdankin   +3 more
doaj   +1 more source

New Facies Model and Carbon Isotope Stratigraphy for an Ediacaran Carbonate Platform From South America (Tamengo Formation—Corumbá Group, SW Brazil)

Frontiers in Earth Science, 2022
The Ediacaran is a period characterized by the diversification of early animals and extensive neritic carbonate deposits. These deposits are still not well understood in terms of facies and carbon isotope composition (δ13C). In this study we focus on the
Maria E. A. F. Ramos, Martino Giorgioni, Detlef H. G. Walde, Dermeval A. do Carmo, Gabriella Fazio, Lucieth C. Vieira, Matheus Denezine, Roberto V. Santos, Rodrigo R. Adôrno, Rodrigo R. Adôrno, Lucas Lage Guida   +10 more
doaj   +1 more source

Massive formation of early diagenetic dolomite in the Ediacaran ocean: Constraints on the “dolomite problem”

Proceedings of the National Academy of Sciences of the United States of America, 2020
Significance Massive Paleozoic and Precambrian dolostone successions have long puzzled geologists in light of the kinetic barriers that inhibit low-temperature dolomite nucleation and precipitation (i.e., the “dolomite problem”).
Biao Chang, Chao Li, Deng Liu, I. Foster, A. Tripati, M. Lloyd, I. Maradiaga, G. Luo, Z. An, Zhenbing She, S. Xie, J. Tong, Junhua Huang, T. Algeo, T. Lyons, A. Immenhauser   +15 more
semanticscholar   +1 more source

Systematic paleontology, acritarch biostratigraphy, and δ 13C chemostratigraphy of the early Ediacaran Krol A Formation, Lesser Himalaya, northern India

Journal of Paleontology, 2022
. Acritarch biostratigraphic and δ13C chemostratigraphic data from the Krol A Formation in the Solan area (Lesser Himalaya, northern India) are integrated to aid inter-basinal correlation of early–middle Ediacaran strata.
S. Xiao, G. Jiang, Qin Ye, Ouyang Qing, D. M. Banerjee, B. Singh, A. Muscente, Chuanming Zhou, N. Hughes   +8 more
semanticscholar   +1 more source

Strike-slip fault system and its control on ediacaran hydrocarbon system in central Sichuan Basin: insights from petrology, U-Pb dating and seismic interpretation

Frontiers in Earth Science
Strike-slip faults are closely related to the enrichment of hydrocarbon resources, with a series of large oil and gas fields associated with strike-slip faults discovered in regions such as the Ordos Basin in China and the West Siberian Basin.
Yongjing Cen, Jianhai Li, Feng Liang, Lien Wang, Xin Zhang   +4 more
doaj   +1 more source

New palaeodirections and palaeointensity data from extensive profiles through the Ediacaran section of the Volyn Basalt Province (NW-Ukraine)

Geophysical Journal International, 2022
Changes of the geomagnetic field over geologic time scales can be used to study the evolution and processes of its sources in Earth's deep interior.
D. Thallner, V. V. Shcherbakova, V. Bakhmutov, V. Shcherbakov, G. Zhidkov, I. Poliachenko, A. Biggin   +6 more
semanticscholar   +1 more source

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