Journal
GEOLOGY
Volume 36, Issue 10, Pages 771-774Publisher
GEOLOGICAL SOC AMER, INC
DOI: 10.1130/G24952A.1
Keywords
Canadian arctic; Permian-Triassic extinction; ichnofossils; anoxia
Categories
Funding
- Natural Science and Engineering Research of Canada (NSERC)
- American Association of Petroleum Geologists
Ask authors/readers for more resources
Early Triassic trace fossil assemblages from the northwest margin of Pangea record a diverse suite of postextinction infauna. These ichnofossil assemblages occurred within well-oxygenated, shallow-marine refuges in a Panthalassa Ocean otherwise characterized by widespread anoxia. We propose an environmentally controlled model for their distribution, in which wave aeration, enhanced by frequent storms, gave rise to an optimal zone for benthic colonization. Within this habitable zone extinction pressures were ameliorated and postextinction recovery duration was minimized.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available