Results 21 to 30 of about 16,764 (247)

Ediacaran Macro Body Fossils [PDF]

Nature Precedings, 2010
This paper, Ediacaran Macro Body Fossils, reports a new discovery of well preserved three dimensional macro body fossils of the Ediacaran Period in central YunNan province in the People's Republic of China.
ChuanWei Yang, Chun-Lan Huang, Jei-Fu Shaw, Liang Zheng, Timothy D. Huang, YiLung Chang   +5 more
core   +4 more sources

A >70‐Myr‐Long Geomagnetic Field Reversal Hyperactivity Across the Ediacaran‐Cambrian Transition

Geophysical Research Letters
The long‐term variation of the geomagnetic field is a key constraint for unraveling the geodynamo processes and the evolution of Earth's deep interior.
Fuyun Shen, Bin Wen, Phil J. A. McCausland, Zheng Gong, Zongmin Zhu, Fangzheng Liu, Jingyi Wang   +6 more
doaj   +2 more sources

Localized and Transient Oxygenation of Shallow Oceans of Southwestern Laurentia at the Ediacaran-Cambrian Boundary. [PDF]

Geobiology
ABSTRACT The Ediacaran–Cambrian boundary, which precedes one of the most significant biotic diversification events in Earth's history, is associated with a global negative carbon isotope excursion termed the BAsal Cambrian carbon isotope Excursion (BACE).
Chanchai W, Nelson LL, Smith EF, Hardisty DS, Lonsdale MC, Burke JE, Lau KV.   +6 more
europepmc   +2 more sources

Ediacaran Extinction and Cambrian Explosion.

Trends in Ecology & Evolution, 2018
The Ediacaran-Cambrian (E-C) transition marks the most important geobiological revolution of the past billion years, including the Earth's first crisis of macroscopic eukaryotic life, and its most spectacular evolutionary diversification.
S. Darroch, E. F. Smith, M. Laflamme, D. Erwin   +3 more
semanticscholar   +3 more sources

Ediacaran organic-rich Kalus Beds of western Ukraine and NW Moldova: mineralogy, total organic carbon content and hydrocarbon potential [PDF]

Estonian Journal of Earth Sciences, 2021
The Ediacaran succession occurs at the southwestern slope of the East European Platform from the Black Sea to the Lublin-Podlasie Basin. It includes a black shale interval in Ukraine represented by the Kalus Beds which may have hydrocarbon source rock ...
Natalia Radkovets, Myroslav Pavlyuk, Yaroslava Yaremchuk, Yuriy Koltun   +3 more
doaj   +1 more source

Redox-Controlled Ammonium Storage and Overturn in Ediacaran Oceans

Frontiers in Earth Science, 2021
As a key nutrient, nitrogen can limit primary productivity and carbon cycle dynamics, but also evolutionary progress. Given strong redox-dependency of its molecular speciation, environmental conditions can control nitrogen localization and ...
Christian Hallmann, Emmanuelle Grosjean, Nathan D. Shapiro, Yuichiro Kashiyama, Yuichiro Kashiyama, Yoshito Chikaraishi, Yoshito Chikaraishi, David A. Fike, Naohiko Ohkouchi, Roger E. Summons   +9 more
doaj   +1 more source

Evolution of Holdfast Diversity and Attachment Strategies of Ediacaran Benthic Macroalgae

Frontiers in Earth Science, 2021
Holdfast morphologies and attachment strategies of benthic macroalgae are somewhat flexible and controlled by both the substrate condition and species.
Xiaopeng Wang, Xiaopeng Wang, Mengyin Wu, Bin Wan, Bin Wan, Changtai Niu, Changtai Niu, Wentao Zheng, Wentao Zheng, Chengguo Guan, Ke Pang, Ke Pang, Zhe Chen, Zhe Chen, Xunlai Yuan, Xunlai Yuan   +15 more
doaj   +1 more source

Carbonate storm deposits and C, O isotopes of the Lagoa do Jacaré Formation (Ediacaran) in the Paraopeba area, Bambuí Group, Brazil [PDF]

Brazilian Journal of Geology, 2022
A section investigated in the region of Paraopeba, Minas Gerais, provided detailed sedimentologic, stratigraphic and chemostratigraphic data from the Ediacaran Lagoa do Jacaré Formation, Bambuí Group, Southeast Brazil.
Marcio Vinicius Santana Dantas, Alexandre Uhlein, Gabriel Jubé Uhlein, Alex Rodrigues de Freitas, Thaís Keuffer Mendonça, José Arthur Oliveira Santos, Samuel Amaral Moura Silva   +6 more
doaj   +1 more source

C- AND Sr-ISOTOPE CHEMOSTRATIGRAPHY OF THE UPPER PROTEROZOIC – LOWER CAMBRIAN TRANSITIONAL DEPOSITS IN THE LENA-ANABAR TROUGH (NORTHEASTERN SIBERIAN PLATFORM)

Геодинамика и тектонофизика, 2023
Studies have been made of the carbon and strontium isotope composition in carbonate sediments of the Khorbusuonka group and Kessyusa formation corresponding to the Upper Vendian in deep Khastakhskaya-930 and Burskaya-341-0 boreholes at the northeastern ...
B. B. Kochnev, B. G. Pokrovsky, A. B. Kuznetsov   +2 more
doaj   +1 more source

A Great late Ediacaran ice age

National Science Review, 2023
The emergence of the Ediacara biota soon after the Gaskiers glaciation ca. 580 million years ago (Ma) implies a possible glacial fuse for the evolution of animals.
Ruimin Wang, B. Shen, X. Lang, Bin Wen, R. Mitchell, Haoran Ma, Z. Yin, Yongbo Peng, Yonggang Liu, Chuanming Zhou   +9 more
semanticscholar   +1 more source