Two episodes of evolution of trace fossils during the Early Triassic in the Guiyang area, Guizhou Province, South China

Shi, Guo; Woods, Adam D.; Yu, Meiyi; Wei, Hengye

doi:10.1016/j.palaeo.2015.03.019

Cited by 23 publications

(8 citation statements)

References 54 publications

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“…An investigation on the distribution of diverse ichnofaunal communities led Beatty, Zonneveld & Henderson (2008) and Zonneveld, Gingras & Beatty (2010) to hypothesise that wave-aerated settings on shallow marine shelves created oxygenated habitats that could support a diverse and large macrofauna during periods when oxygen minimum zones expanded into shallow settings, dubbed the habitable zone hypothesis. Support for a habitable zone during the Early Triassic also comes from tropical and subtropical settings in Nunavat, Canada ( Beatty, Zonneveld & Henderson, 2008 ; Proemse et al, 2013 ), western Canada ( Beatty, Zonneveld & Henderson, 2008 ), western USA ( Fraiser & Bottjer, 2009 ; Pietsch, Mata & Bottjer, 2014 ; Woods et al, 2019 ), Lombardy, Italy ( Foster et al, 2018a ), Dolomites, Italy ( Foster et al, 2017 ; Posenato, 2019 ), South China ( Shi et al, 2015 ; Feng et al, 2017 ), Svalbard ( Foster, Danise & Twitchett, 2017 ), and Australia ( Chen, Fraiser & Bolton, 2012 ; Feng et al, 2021 ). Even though, many successions support this hypothesis, the habitable zone or an oxygenated setting does not guarantee rapid recovery ( Twitchett et al, 2004 ; Foster et al, 2015 ; Feng et al, 2017 ).…”

Section: Discussionmentioning

confidence: 99%

Palaeoecology of the Hiraiso Formation (Miyagi Prefecture, Japan) and implications for the recovery following the end-Permian mass extinction

Foster

Godbold

Brayard

et al. 2022

PeerJ

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The Hiraiso Formation of northeast Japan represents an important and under-explored archive of Early Triassic marine ecosystems. Here, we present a palaeoecological analysis of its benthic faunas in order to explore the temporal and spatial variations of diversity, ecological structure and taxonomic composition. In addition, we utilise redox proxies to make inferences about the redox state of the depositional environments. We then use this data to explore the pace of recovery in the Early Triassic, and the habitable zone hypothesis, where wave aerated marine environments are thought to represent an oxygenated refuge. The age of the Hiraiso Formation is equivocal due to the lack of key biostratigraphical index fossils, but new ammonoid finds in this study support an early Spathian age. The ichnofossils from the Hiraiso Formation show an onshore-offshore trend with high diversity and relatively large faunas in offshore transition settings and a low diversity of small ichnofossils in basinal settings. The body fossils do not, however, record either spatial or temporal changes, because the shell beds represent allochthonous assemblages due to wave reworking. The dominance of small burrow sizes, presence of key taxa including Thalassinoides, Rhizocorallium and Holocrinus, presence of complex trace fossils, and both erect and deep infaunal tiering organisms suggests that the benthic fauna represents an advanced stage of ecological recovery for the Early Triassic, but not full recovery. The ecological state suggests a similar level of ecological complexity to late Griesbachian and Spathian communities elsewhere, with the Spathian marking a globally important stage of recovery following the mass extinction. The onshore-offshore distribution of the benthic faunas supports the habitable zone hypothesis. This gradient is, however, also consistent with onshore-offshore ecological gradients known to be controlled by oxygen gradients in modern tropical and subtropical settings. This suggests that the habitable zone is not an oxygenated refuge that is only restricted to anoxic events. The lack of observed full recovery is likely a consequence of a persistent oxygen-limitation (dysoxic conditions), hot Early Triassic temperatures and the lack of a steep temperature/water-depth gradient within the habitable zone.

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Section: Discussionmentioning

confidence: 99%

Palaeoecology of the Hiraiso Formation (Miyagi Prefecture, Japan) and implications for the recovery following the end-Permian mass extinction

Foster

Godbold

Brayard

et al. 2022

PeerJ

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“…Lower Triassic ichnoassemblages have been widely reported from around the world (Twitchett and Wignall, 1996;Wignall et al, 1998;Twitchett, 1999;Pruss and Bottjer, 2004;Beatty et al, 2008;Fraiser and Bottjer, 2009;Hu et al, 2009Hu et al, , 2015Knaust, 2010;Zonneveld et al, 2010;Hofmann et al, 2011Hofmann et al, , 2015Mata and Bottjer, 2011;Chen et al, 2011Chen et al, , 2012Chen et al, , 2015Lovelace and Lovelace, 2012;Foster et al, 2015;Shi et al, 2015;Zhao et al, 2015;Baucon and De Carvalho, 2016;Bordy and Krummeck, 2016;Luo et al, 2016;Uchman et al, 2016;Feng et al, 2017) (Fig. 12).…”

Section: Comparisons With Coeval Ichnoassemblages Elsewhere In the Worldmentioning

confidence: 97%

“…1, HZGM section, North China (this study). 2, Western Spitsbergen (Wignall, 1998); 3, British Columbia, Western Canada (Beatty et al, 2008;Zonneveld et al, 2010); 4, Persian Gulf, Iran (Knaust, 2010); 5, Northern Italy (Hofmann et al, 2011); 6, Northern Italy (Twitchett and Wignall, 1996;Twitchett, 1999); 7, Carnic Alps, Italy (Baucon and De Carvalho, 2016); 8, Northern Hungary (Foster et al, 2015); 9, Utah, USA (Fraiser and Bottjer, 2009;Hofmann et al, 2015); 10, Western USA (Pruss and Bottjer, 2004); 11, Western USA (Mata and Bottjer, 2011); 12, Wyoming, USA (Lovelace and Lovelace, 2012); 13, Spitsbergen, Svalbard (Uchman et al, 2016); 14, Lower Yangtze region, South China (Chen et al, 2011;Luo et al, 2016); 15, Middle Yangtze region, South China (Zhao et al, 2015;Feng et al, 2017); 16, Upper Yangtze region, South China (Shi et al, 2015;Luo et al, 2016). 17, Western Australia (Chen et al, 2012); 18, Karoo Basin, South Africa (Bordy and Krummeck, 2016); 19, Henan Province, North China (Hu et al, 2009(Hu et al, , 2015.…”

Section: Fig 2 Amentioning

confidence: 99%

“…Early Triassic ichnofaunas have been widely reported from many localities around the world, and they have been well tested as a useful tool for assessing the recovery process and pattern of marine trace-maker organisms (Twitchett and Wignall, 1996;Twitchett, 1999Twitchett, , 2006Twitchett and Barras, 2004;Pruss and Bottjer, 2004;Beatty et al, 2008;Fraiser and Bottjer, 2009;Zonneveld et al, 2010;Knaust, 2010;Chen et al, 2011Chen et al, , 2012Chen et al, , 2015Mata and Bottjer, 2011;Hoffmann et al, 2011Hoffmann et al, , 2015Luo and Chen, 2014;Zhao et al, 2015;Shi et al, 2015;Foster et al, 2015;Luo et al, 2016;Feng et al, 2017). Most works show that ichnofaunas of the Griesbachian-Dienerian (Induan) interval were depauperate, and that trace-makers did not recover worldwide until the Spathian in terms of various ecological and ichnological proxies, such as ichnodiversity, burrow size, complexity, tiering level, and bioturbation level (Twitchett, 1999;Pruss and Bottjer, 2004;Fraiser and Bottjer, 2009;Chen et al, 2011;Mata and Bottjer, 2011;Zhao et al, 2015;Luo et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

“…Most works show that ichnofaunas of the Griesbachian-Dienerian (Induan) interval were depauperate, and that trace-makers did not recover worldwide until the Spathian in terms of various ecological and ichnological proxies, such as ichnodiversity, burrow size, complexity, tiering level, and bioturbation level (Twitchett, 1999;Pruss and Bottjer, 2004;Fraiser and Bottjer, 2009;Chen et al, 2011;Mata and Bottjer, 2011;Zhao et al, 2015;Luo et al, 2016). In particular, the Griesbachian (early Induan) was a tough time for ichnotaxa, which usually appear at very low ichnodiversity, small burrow size, and shallow tiering level, and are dominated by small, simple/unbranching, low-tier burrows or traces (Twitchett and Barras, 2004;Fraiser and Bottjer, 2009;Chen et al, 2011;Mata and Bottjer, 2011;Zhao et al, 2015;Shi et al, 2015;Luo et al, 2016). The Griesbachian substrate is also usually weakly bioturbated and lacks the mixed layer (Hoffmann et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

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A diverse trackway-dominated marine ichnoassemblage from the Lower Triassic in the northern Paleotethys: Ichnology and implications for biotic recovery

Feng

Chen

Benton

et al. 2019

Palaeogeography, Palaeoclimatology, Palaeoecology

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Here, we document a diverse ichnoassemblage from the marine interbeds of the Lower Triassic terrestrial succession in the Houzhougongmiao (HZGM) section of Shaanxi Province, western North China. The integrated biostratigraphic data (bivalve, palynology and conchostracan) reveals that the ichnofossil-bearing marine beds are Griesbachian (Induan, Early Triassic) in age. The marine interbeds are interpreted as the result of the earliest Triassic transgression of the Paleo-Tethys Ocean northward to the southern margin of North China Craton. The HZGM ichnoassemblage includes 17 ichnospecies in 16 ichnogenera and is dominated by the shallow-tier Asteriacites and Biformites produced by ophiuroids, the scratch marks or trackways Dimorphichnus, Diplichnites, and Monomorphichnus produced by arthropods, with a minor constituent of the fish swimming trace Undichna. Of these, the hook-shaped imprints Biformites, representing the arm moving impressions of ophiuroids, are reported for the first time from the Lower Triassic. These trace-makers are interpreted to have lived in a low energy, semi-restricted, but oxygenated, shallow embayment environment. Although possessing relatively high ichnodiversity, the HZGM ichnoassemblage differs clearly from other coeval diverse ichnocoenoses in the lack of complex burrow forms (i.e. Thalassinoides, Diplocraterion, or Rhizocorallium) and mixed layer, and in having abundant shallow tiers. Accordingly, the resting trace or trackway-dominated ichnoassemblage from the HZGM section may represent an exceptional ichnofauna, an initial recovery of the trace-maker ecosystem after the Permian-Triassic mass extinction. The trace-makers such as arthropods and ophiuroids perhaps were opportunistic organisms that proliferated in marginal marine settings when other biota were still suffering post-extinction biotic depletion and environmental stresses.

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The variations of terrestrial trace fossils and sedimentary substrates after the end‐Permian extinction in the Dengfeng area, North China

Zheng

Wan

et al. 2022

Geological Journal

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Evolution of terrestrial infauna in the Early Triassic enables to understand terrestrial biotic recovery after the end-Permian mass extinction (EPME). Six ichnospecies in two ichnogenera, including Skolithos linearis, S. verticalis, S. annulatus, S. isp., Planolites montanus, and P. beverleyensis, were recognized from the Lower Triassic Liujiagou Formation (Induan Stage) and Heshanggou Formation (Olenekian Stage) in the Baiping section of the Dengfeng area, North China. The ichno-ecological analyses of ichno-taxonomic abundance, ichnodiversity, bioturbation index, burrow size, and tiering level revealed that terrestrial infauna expanded from epibenthic to endobenthic through the Early Triassic. The tiering deepening suggested that tracemakers gradually began to excavate into the sediments instead of moving on the microbial mats, indicating that the burrowing capability of trace-making animals has recovered in the Olenekian. Four types of sedimentary substrates were summarized: non-bioturbated matground, matground with bioturbated patches, weakly bioturbated mixed ground, and moderately bioturbated mixed ground. Occurrence of the substrate of mixed ground may be a sign of the initial recovery of the terrestrial ecosystem after the EPME.

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Two episodes of evolution of trace fossils during the Early Triassic in the Guiyang area, Guizhou Province, South China

Cited by 23 publications

References 54 publications

Palaeoecology of the Hiraiso Formation (Miyagi Prefecture, Japan) and implications for the recovery following the end-Permian mass extinction

Palaeoecology of the Hiraiso Formation (Miyagi Prefecture, Japan) and implications for the recovery following the end-Permian mass extinction

A diverse trackway-dominated marine ichnoassemblage from the Lower Triassic in the northern Paleotethys: Ichnology and implications for biotic recovery

The variations of terrestrial trace fossils and sedimentary substrates after the end‐Permian extinction in the Dengfeng area, North China

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