Journal
GLOBAL AND PLANETARY CHANGE
Volume 73, Issue 1-2, Pages 123-140Publisher
ELSEVIER
DOI: 10.1016/j.gloplacha.2010.03.011
Keywords
Shelly community; Permian; Triassic; mass extinction; aftermath; community structure; South China
Funding
- Australian Research Council [DP0770938]
- National Natural Science Foundation of China [40325004, 40872003, 40972003]
- Australian Research Council [DP0770938] Funding Source: Australian Research Council
Ask authors/readers for more resources
The Permian/Triassic (P/Tr) transition is ecologically assessed based on examining 23 shelly communities from five shallow platform, ramp and shelf basin facies Permian-Triassic boundary (FTB) sections in South China. The shelly communities have undergone two major collapses coinciding with the two episodes of the end-Permian mass extinction. The first P/Tr extinction event devastated shelly communities in all types of settings to some extent. The basin communities have been more severely impacted than both platform and ramp communities. The survival faunas have rebounded more rapidly in shallow niches than in relatively deep habitats. The second P/Tr crisis destroyed the survival communities in shallow setting and had little impact on the basin communities in terms of community structures. The early Griesbachian communities are overall low-diversity and high-dominance. The governorship switch from brachiopods to bivalves in marine communities has been facilitated by two pulses of the end-Permian mass extinction and the whole takeover process took about 200 ka across the P/Tr boundary. Bivalve ecologic takeover initially occurred immediately after the first P/Tr extinction in shallow water habitats and was eventually completed in all niches after the second P/Tr event. Some post-extinction communities have the irregular rarefaction curves due to the unusual community structures rather than sampling intensities. Crown Copyright (C) 2010 Published by Elsevier B.V. All rights reserved.
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