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Quantitative analysis of the ecological dominance of benthic disaster taxa in the aftermath of the end-Permian Mass Extinction

Published on Aug 1, 2016in Paleobiology2.354
· DOI :10.1017/pab.2015.47
Elizabeth Petsios6
Estimated H-index: 6
(SC: University of Southern California),
David J. Bottjer58
Estimated H-index: 58
(SC: University of Southern California)
Abstract
Abstract. The end-Permian mass extinction, the largest extinction of the Phanerozoic, led to a severe reduction in both taxonomic richness and ecological complexity of marine communities, eventually culminating in a dramatic ecological restructuring of communities. During the Early Triassic recovery interval, disaster taxa proliferated and numerically dominated many marine benthic invertebrate assemblages. These disaster taxa include the bivalve genera Claraia, Unionites, Eumorphotis, and Promyalina, and the inarticulate brachiopod Lingularia. The exact nature and extent of their dominance remains uncertain. Here, a quantitative analysis of the dominance of these taxa within the fossil communities of Panthalassa and Tethys benthic realms is undertaken for the stages of the Early Triassic to examine temporal and regional changes in disaster-taxon dominance as recovery progresses. Community dominance and disaster-taxon abundance is markedly different between Panthalassic and Tethyan communities. In Panthala...
  • References (68)
  • Citations (12)
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References68
Newest
#1Hengye Wei (UC: University of Cincinnati)H-Index: 5
#2Jun Shen (UC: University of Cincinnati)H-Index: 56
Last. Thomas J. Algeo (UC: University of Cincinnati)H-Index: 31
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Abstract The recovery of marine ecosystems following a mass extinction event involves an extended interval of increasing biotic diversity and ecosystem complexity. The pace of recovery may be controlled by intrinsic ecosystem or extrinsic environmental factors. Here, we present an analysis of changes in marine conditions following the end-Permian mass extinction with the objective of evaluating the role of environmental factors in the protracted (~ 5-Myr-long) recovery of marine ecosystems durin...
36 CitationsSource
#1Haijun SongH-Index: 20
#2Paul B. WignallH-Index: 58
Last. Li TianH-Index: 14
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90 CitationsSource
#1Carlie PietschH-Index: 1
1 Citations
#1Carlie Pietsch (SC: University of Southern California)H-Index: 3
#2David J. Bottjer (SC: University of Southern California)H-Index: 58
Abstract The end-Permian mass extinction, 252 million years ago, decimated life on Earth including the benthic marine invertebrate macrofauna. A return to pre-extinction levels of diversity and complex ecological systems took approximately 5 million years. This review provides the most up to date synthesis of the progression of the benthic marine invertebrate macrofaunal recovery. We found the rates and patterns of the benthic recovery to vary both across the globe and between different investig...
39 CitationsSource
#1Ashley A. Dineen (UWM: University of Wisconsin–Milwaukee)H-Index: 4
#2Margaret L. Fraiser (UWM: University of Wisconsin–Milwaukee)H-Index: 18
Last. Peter M. Sheehan (UWM: University of Wisconsin–Milwaukee)H-Index: 1
view all 3 authors...
Abstract A review of the literature shows that understanding of biotic restructuring following the Permo-Triassic mass extinction (PTME) is typically based on only a few components of the ecosystem, such as taxonomic diversity, and that Early Triassic paleocommunities previously have been considered fully recovered when previous dominance and diversity were regained. To more fully characterize Triassic ecologic restructuring, we propose herein that paleoecologists take into account functional di...
27 CitationsSource
#1Richard Hofmann (UZH: University of Zurich)H-Index: 12
#2Michael Hautmann (UZH: University of Zurich)H-Index: 24
Last. Hugo Bucher (UZH: University of Zurich)H-Index: 37
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Based on the quantitative community analysis using species-level identifications, we track the restoration of benthic ecosystems after the end-Permian mass extinction throughout the Lower Triassic of the western USA. New data on the palaeoecology of the Thaynes Group and Sinbad Formation are provided, which fill a gap between the recently studied palaeoecology of the Griesbachian-Dienerian Dinwoody Formation and the Spathian Virgin Formation. In the Sinbad Formation and Thaynes Group, 17 species...
64 CitationsSource
#1Carlie Pietsch (SC: University of Southern California)H-Index: 3
#2Scott A. Mata (SC: University of Southern California)H-Index: 7
Last. David J. Bottjer (SC: University of Southern California)H-Index: 58
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The end-Permian mass extinction event was the greatest loss of biodiversity ever experienced on the planet. The event is thought to have been triggered by the initiation of the volcanic eruptions of the Siberian Traps. The five million year recovery interval that followed the extinction event was strongly influenced by the environmental effects of sustained volcanic eruptions including extreme temperature events and persistent global and regional oxygen minimum zones. The effects of these enviro...
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#1Renato Posenato (University of Ferrara)H-Index: 18
#2Lars E. Holmer (Uppsala University)H-Index: 27
Last. Herwig PrinothH-Index: 3
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Abstract Linguliform brachiopods are traditionally considered a conservative group which seems to pass through the late Permian extinction without any significant loss and even appear to thrive immediately after the extinction peak. In the Southern Alps, lingulids are very common in the post-extinction Mazzin Member (early Induan) of the Werfen Formation. Sparse occurrences are also known in the overlying Siusi and Gastropod Oolite members (late Induan and early Olenekian in age respectively). T...
25 CitationsSource
At least two-thirds of marine genera died out during the end-Permian mass extinction about 252 million years ago. An analysis of extinct and surviving taxa shows no substantial loss in global functional diversity, although there were significant losses in some settings such as tropical reefs.
74 CitationsSource
#1Bryony A. Caswell (OU: Open University)H-Index: 4
#2Angela L. Coe (OU: Open University)H-Index: 26
Severe paleoclimatic change during the Toarcian (Early Jurassic) oceanic anoxic event (OAE) was characterized by a negative δ 13 C excursion, increased weathering, higher seawater temperatures, oceanic deoxygenation, and mass extinction. We present abundance and size data (n ≈ 36,000) for the two dominant epifaunal bivalve species from the Toarcian OAE, Yorkshire, UK. We statistically correlate the biotic data with geochemical proxies for environmental change and show that our results are compar...
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#2Yang Zhang (China University of Geosciences)
Last. Yuanlin Sun (PKU: Peking University)H-Index: 15
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#1Ting Song (China University of Geosciences)H-Index: 2
#2Jinnan Tong (China University of Geosciences)H-Index: 26
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Abstract Immediately after the latest Permian mass extinction, bivalve faunas colonized the Permian-Triassic Transitional Beds (PTTB), especially in littoral clastic facies of South China. The Permian-Triassic (P-Tr) transitional bivalve fauna is composed of holdovers, long-term survivors and newly evolved taxa, and characterized by moderate diversity and high dominance. However, the taxonomy and ecology of this bivalve fauna of littoral clastic facies have not been well understood, especially i...
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#1Xueqian Feng (China University of Geosciences)H-Index: 5
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Abstract We report two shallow marine, ichnofauna-bivalve-microbial mat biofacies from the Lower Triassic Xiahuancang Formation of the southern Qilian area, Qinghai Province, northwestern China, which was located at moderate-high paleolatitudes on the northern margin of the Paleotethys Ocean. Paleoenvironmental analyses show that Members I and II of the Xiahuancang Formation represent a shoreface and a lower shoreface to offshore transition setting, respectively. Biofacies 1, recognized from Mem...
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After the end-Permian mass extinction, genus Claraia (Bivalvia) was the most abundant and most noticeable fossil during the survival and recovery stage. However, the reasons for the proliferation of Claraia are still debated. This paper describes a new Griesbachian (Early Triassic) mollusc fauna from deep-water settings in South China in the aftermath of end-Permian mass extinction. This fauna yielded five bivalve species in two genera (Claraia griesbachi, C. wangi, C. stachei, C. radialis, and ...
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Abstract The late Permian mass extinction was the most severe biotic crisis of the Phanerozoic, with associated environmental changes that included the expansion of hypoxic and anoxic conditions in shallow shelf settings. It has been hypothesized that wave aeration promoted oxygen transport to the seafloor providing a ‘habitable zone' in the shallowest marine environments that allowed the survival and rapid recovery of benthic invertebrates during the Early Triassic. We test this hypothesis by s...
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An exceptional buildup of thin-shelled bivalves (3.5 m thick and more than 12 m long), apparently the largest in the literature, is reported from the External Subbetic (Betic Cordillera, southern Spain). Calcareous nannofossils indicate the NJT8 biozone (late Aalenian) below the buildup and the NJT9 biozone (early Bajocian) at the base of the buildup. The thin-shelled bivalves, commonly referred to as filaments, are Bositra-like forms, an opportunistic bivalve that flourished under stressed cond...
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#1Elizabeth Petsios (SC: University of Southern California)H-Index: 6
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