Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Gretchen R. O'Neil"'
Publikováno v:
PALAIOS. 37:703-717
Bioturbating activities have played a vital role in shaping the marine ecosystem throughout metazoan history, influencing the abundance and preservation potential of body fossil-producing taxa and driving major environmental and geochemical changes.
Autor:
Tara Selly, Michael A. Strange, Emily F. Smith, James D. Schiffbauer, Lyle L. Nelson, Michael Steiner, Yaoping Cai, Gretchen R. O'Neil, Natalia Bykova, John Warren Huntley, Sarah M. Jacquet, Ben Yang, Brock D. Andreasen, Casey A. Thater
Publikováno v:
Journal of Systematic Palaeontology. 18:357-379
Owing to their temporal position during the decline of the classic Ediacara biota and the appearance of the more recognizable metazoans of the Cambrian Period, the terminal Ediacaran (∼551–539 Ma) ...
Publikováno v:
Geological Society of America Abstracts with Programs.
Autor:
Gretchen R. O'Neil, Lydia S. Tackett
Publikováno v:
Geological Society of America Abstracts with Programs.
Autor:
Gerard J.B. Germs, Brandt M. Gibson, Thomas H. Boag, Rachel A. Racicot, Alison Cribb, John Almond, James D. Schiffbauer, Charlotte G. Kenchington, Helke Mocke, Simon A.F. Darroch, Katie Maloney, Luis A. Buatois, Bryce E. Koester, Gretchen R. O'Neil, Sarah M. Tweedt, Marc Laflamme, Katherine A. Turk, Emily F. Smith
Publikováno v:
Earth-Science Reviews. 212:103435
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. Among the proposed drivers of thes
Autor:
James D. Schiffbauer, Simon A.F. Darroch, Marc Laflamme, Yaoping Cai, John Warren Huntley, Gretchen R. O'Neil
Publikováno v:
GSA Today. :4-11
This is the published version of an article published by the Geological Society of America.
Publikováno v:
Precambrian Research. 345:105768
The lower Member of the Wood Canyon Formation contains a variety of simple late Precambrian–early Cambrian dwelling and grazing traces, typical of early bioturbators. The traces, dominated by Planolites and Palaeophycus, are heavily abundant throug
Autor:
Gretchen R. O'Neil, Lydia S. Tackett
Publikováno v:
Geological Society of America Abstracts with Programs.
Autor:
Casey A. Thater, Gretchen R. O'Neil, James D. Schiffbauer, Emily F. Smith, Lyle L. Nelson, Tara Selly, John Warren Huntley, Michael A. Strange, Yaoping Cai, Brock D. Andreasen, Sarah M. Jacquet
Publikováno v:
Geological Society of America Abstracts with Programs.
Publikováno v:
Geological Society of America Abstracts with Programs.