Additional records of ichnogenus Rhizocorallium from the Lower and Middle Triassic, South China: Implications for biotic recovery after the end-Permian mass extinction

2018 ◽  
Vol 130 (7-8) ◽  
pp. 1197-1215 ◽  
Author(s):  
Xueqian Feng ◽  
Zhong-Qiang Chen ◽  
David J. Bottjer ◽  
Margaret L. Fraiser ◽  
Yan Xu ◽  
...  
Keyword(s):  
South China ◽  
Mass Extinction ◽  
Middle Triassic ◽  
Biotic Recovery ◽  
Permian Mass Extinction

Early and Middle Triassic trends in diversity, evenness, and size of foraminifers on a carbonate platform in south China: implications for tempo and mode of biotic recovery from the end-Permian mass extinction

Paleobiology ◽  
2011 ◽  
Vol 37 (3) ◽  
pp. 409-425 ◽  
Author(s):  
Jonathan L. Payne ◽  
Mindi Summers ◽  
Brianna L. Rego ◽  
Demir Altiner ◽  
Jiayong Wei ◽  
...  
Keyword(s):  
South China ◽  
Mass Extinction ◽  
Evolutionary Dynamics ◽  
Middle Triassic ◽  
Carbonate Platform ◽  
Early Triassic ◽  
Data Set ◽  
Recovery Pattern ◽  
Biotic Recovery ◽  
Permian Mass Extinction

Delayed biotic recovery from the end-Permian mass extinction has long been interpreted to result from environmental inhibition. Recently, evidence of more rapid recovery has begun to emerge, suggesting the role of environmental inhibition was previously overestimated. However, there have been few high-resolution taxonomic and ecological studies spanning the full Early and Middle Triassic recovery interval, leaving the precise pattern of recovery and underlying mechanisms poorly constrained. In this study, we document Early and Middle Triassic trends in taxonomic diversity, assemblage evenness, and size distribution of benthic foraminifers on an exceptionally exposed carbonate platform in south China. We observe gradual increases in all metrics through Early Triassic and earliest Middle Triassic time, with stable values reached early in the Anisian. There is little support in our data set for a substantial Early Triassic lag interval during the recovery of foraminifers or for a stepwise recovery pattern. The recovery pattern of foraminifers on the GBG corresponds well with available global data for this taxon and appears to parallel that of many benthic invertebrate clades. Early Triassic diversity increase in foraminifers was more gradual than in ammonoids and conodonts. However, foraminifers continued to increase in diversity, size, and evenness into Middle Triassic time, whereas diversity of ammonoids and conodonts declined. These contrasts suggest decoupling of recovery between benthic and pelagic environments; it is unclear whether these discrepancies reflect inherent contrasts in their evolutionary dynamics or the differential impact of Early Triassic ocean anoxia or associated environmental parameters on benthic ecosystems.

Early Triassic trace fossils from South China marginal-marine settings: Implications for biotic recovery following the end-Permian mass extinction

2018 ◽  
Vol 131 (1-2) ◽  
pp. 235-251 ◽  
Author(s):  
Li-Jun Zhang ◽  
Luis A. Buatois ◽  
M. Gabriela Mángano ◽  
Yong-An Qi ◽  
Chao Tai
Keyword(s):  
South China ◽  
Mass Extinction ◽  
Trace Fossils ◽  
Early Triassic ◽  
Biotic Recovery ◽  
Permian Mass Extinction

scholarly journals The Luoping biota: exceptional preservation, and new evidence on the Triassic recovery from end-Permian mass extinction

2010 ◽  
Vol 278 (1716) ◽  
pp. 2274-2282 ◽  
Author(s):  
Shi-xue Hu ◽  
Qi-yue Zhang ◽  
Zhong-Qiang Chen ◽  
Chang-yong Zhou ◽  
Tao Lü ◽  
...  
Keyword(s):  
Mass Extinction ◽  
Middle Triassic ◽  
Marine Ecosystem ◽  
Marine Ecosystems ◽  
Trophic Levels ◽  
Marine Animals ◽  
Exceptional Preservation ◽  
Marine Reptiles ◽  
Biotic Recovery ◽  
Permian Mass Extinction

The timing and nature of biotic recovery from the devastating end-Permian mass extinction (252 Ma) are much debated. New studies in South China suggest that complex marine ecosystems did not become re-established until the middle–late Anisian (Middle Triassic), much later than had been proposed by some. The recently discovered exceptionally preserved Luoping biota from the Anisian Stage of the Middle Triassic, Yunnan Province and southwest China shows this final stage of community assembly on the continental shelf. The fossil assemblage is a mixture of marine animals, including abundant lightly sclerotized arthropods, associated with fishes, marine reptiles, bivalves, gastropods, belemnoids, ammonoids, echinoderms, brachiopods, conodonts and foraminifers, as well as plants and rare arthropods from nearby land. In some ways, the Luoping biota rebuilt the framework of the pre-extinction latest Permian marine ecosystem, but it differed too in profound ways. New trophic levels were introduced, most notably among top predators in the form of the diverse marine reptiles that had no evident analogues in the Late Permian. The Luoping biota is one of the most diverse Triassic marine fossil Lagerstätten in the world, providing a new and early window on recovery and radiation of Triassic marine ecosystems some 10 Myr after the end-Permian mass extinction.

Extreme euxinia just prior to the Middle Triassic biotic recovery from the latest Permian mass extinction

2014 ◽  
Vol 73 ◽  
pp. 113-122 ◽  
Author(s):  
Ryosuke Saito ◽  
Masahiro Oba ◽  
Kunio Kaiho ◽  
Philippe Schaeffer ◽  
Pierre Adam ◽  
...  
Keyword(s):  
Mass Extinction ◽  
Middle Triassic ◽  
Biotic Recovery ◽  
Permian Mass Extinction
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