Results 141 to 150 of about 12,978 (245)

Edrathina obditchia, an Ediacaran stem-group ctenophore from the Fermeuse Formation of Newfoundland

Frontiers in Ecology and Evolution
The Ediacaran fossil Edrathina obditchia gen. et sp. nov., is considered herein to be a large soft bodied metazoan with a bauplan that conforms most closely with that of the stem-group ctenophores.
Heléna Muirhead-Hunt, Simon Rosse-Guillevic, Duncan McIlroy   +2 more
doaj   +1 more source

Age constraints for the Ediacaran-Cambrian boundary in the Iberian Chains, NE Spain

, 2019
The Paracuellos Group is the oldest sedimentary sequence of the Iberian Chains in north-east Spain. The group is subdivided into three formation which are, in stratigraphic order, the Sestrica Formation, known only from drill cores, the Saviñan Formation
Streng, Michael,
core  

Resúmenes cortos presentados en el Congreso Internacional sobre el Ediacárico y el tránsito Ediacárico-Cámbrico (Guadalupe, Extremadura, España, 17 al 24 de Octubre de 2019)

Estudios Geologicos, 2019
El siguiente documento recopila los resúmenes cortos presentados en el IMECT (International Meeting on the Ediacaran System and the Ediacaran-Cambrian Transition), celebrado del 17 al 24 de octubre de 2019 en Guadalupe (Geoparque Villuercas-Ibores-Jara).
J. J. Álvaro, S. Jensen
doaj  

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   +1 more source

Enhanced phosphorus regeneration linked to Ediacaran ocean oxygenation

Communications Earth & Environment
Several pulses of ocean oxygenation events were recognized in the Ediacaran period. However, the intrinsic triggers behind them remain ambiguous. Here we report phosphorus speciation data from the Ediacaran Doushantuo Formation, South China, to elucidate
Dongtao Xu, Xinqiang Wang, Eva E. Stüeken, Weiming Xu, Zheng Qin, Jihua Hao, Xiaoying Shi, Dongjie Tang   +7 more
doaj   +1 more source

Relating Ediacaran Fronds [PDF]

, 2017
Ediacaran fronds are key components of terminal-Proterozoic ecosystems. They represent one of the most widespread and common body forms ranging across all major faunal localities and time slices postdating the Gaskiers glaciation, but uncertainty over ...
Laflamme, Marc, Dececchi, Thomas Alexander, Narbonne, Guy M, Greentree, Carolyn   +3 more
core  

Re-evaluating molecular clock maximum age calibrations revives pre-Ediacaran divergence estimates for animals. [PDF]

Sci Adv
Lole Durbin OM, Anttila ESC, Briggs DEG, Macdonald FA, Anderson RP.   +4 more
europepmc   +1 more source

Reversed marine phosphorus gradient in the Ediacaran Ocean. [PDF]

Nat Commun
Dodd MS, Li C, Cheng M, Hu J, Zhang Z, Gu H, Fang J, Zheng L, Sadekov AY, Hou M, Algeo TJ, Mills BJW.   +11 more
europepmc   +1 more source

Uranium Isotope Evidence for Persistent Global Ocean Anoxia Across the Ediacaran-Cambrian Transition in Siberia. [PDF]

Geobiology
Doerrler AD, Gan T, Gilleaudeau GJ, Pedersen MG, Bykova N, Marusin V, Ivanova NA, Kochnev B, Grazhdankin DV, Kletetschka K, Kaufman AJ.   +10 more
europepmc   +1 more source

Continental weathering-phosphogenesis coupling across the ediacaran-cambrian transition, Southwestern China. [PDF]

PLoS One
Yang Y, Hao Q, Wen J, Zhao W, Zhang C.
europepmc   +1 more source