Results 41 to 50 of about 12,978 (245)

The Ediacaran origin of Ecdysozoa: integrating fossil and phylogenomic data

Journal of the Geological Society, 2022
Ecdysozoans (Phyla Arthropoda, Kinorhyncha, Loricifera, Nematoda, Nematomorpha, Onychophora, Priapulida, Tardigrada) are invertebrates bearing a tough, periodically moulted cuticle that predisposes them to exceptional preservation.
Richard J. Howard, M. Giacomelli, J. Lozano-Fernandez, G. Edgecombe, James F. Fleming, R. Kristensen, Xiao-Ya Ma, J. Olesen, M. V. Sørensen, P. Thomsen, M. Wills, P. Donoghue, D. Pisani   +12 more
semanticscholar   +1 more source

New data on geochemical features, fluid mode, age and potential ore content of granitoids of Isherim anticlinorium (North Ural)

Литосфера, 2018
Granitoids of Ishirim anticlinorium which is one of the major Precambrian structures of the North Urals, are poorly studied by modern geochemical and isotope-geochronological methods that led to the existence of different points of view on formation ...
Georg A. Petrov, Vladimir V. Holodnov, Yurii L. Ronkin   +2 more
doaj   +1 more source

Transgression–regression cycles drive correlations in Ediacaran–Cambrian rock and fossil records

Paleobiology, 2023
Non-technical Summary Ediacaran-age sedimentary rocks (635–538.8 million years ago) contain the oldest animal fos sils that are visible to the naked eye.
Daniel C. Segessenman, Shanan E. Peters
semanticscholar   +1 more source

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

Locating the BACE of the Cambrian: Bayan Gol in southwestern Mongolia and global correlation of the Ediacaran–Cambrian boundary

Earth-Science Reviews, 2022
The diversification of animals during the Cambrian Period is one of the most significant evolutionary events in Earth ’ s history. However, the sequence of events leading to the origin of ‘modern ’ ecosystems and the exact temporal relationship between ...
T. Topper, Marissa J. Betts, D. Dorjnamjaa, Guoxiang Li, Luo-Yang Li, Gundsambuu Altanshagai, Bakthuyag Enhkbaatar, C. Skovsted   +7 more
semanticscholar   +1 more source

Calibrating the coevolution of Ediacaran life and environment

Proceedings of the National Academy of Sciences of the United States of America, 2020
Significance Our understanding of the interactions between animal evolution, biogeochemical cycling, and global tectonics during the Ediacaran Period (635 to 541 Ma) is severely hampered by lack of a robust temporal framework.
A. Rooney, M. Cantine, K. Bergmann, I. Gómez-Pérez, Badar Al Baloushi, Thomas H. Boag, J. Busch, E. Sperling, J. Strauss   +8 more
semanticscholar   +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

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

Extensive primary production promoted the recovery of the Ediacaran Shuram excursion

Nature Communications, 2022
Member IV of the Ediacaran Doushantuo Formation records the recovery from the most negative carbon isotope excursion in Earth history. However, the main biogeochemical controls that ultimately drove this recovery have yet to be elucidated.
Fuencisla Cañadas, D. Papineau, M. Leng, Chao Li   +3 more
semanticscholar   +1 more source

The trace fossil record of the Nama Group, Namibia: Exploring the terminal Ediacaran roots of the Cambrian explosion

, 2021
The Ediacaran–Cambrian transition marks one of the most important geobiological revolutions in Earth History, including multiple waves of evolutionary radiation and successive episodes of apparent mass extinction.
S. Darroch, A. Cribb, L. Buatois, G. Germs, C. Kenchington, E. Smith, H. Mocke, Gretchen R. O'Neil, J. Schiffbauer, Katie M. Maloney, R. Racicot, Katherine A. Turk, B. Gibson, J. Almond, Bryce E. Koester, Thomas H. Boag, S. Tweedt, M. Laflamme   +17 more
semanticscholar   +1 more source