Environmental controls on the post-Permian recovery of benthic, tropical marine ecosystems in western Palaeotethys (Aggtelek Karst, Hungary)

Foster, William J.; Danise, Silvia; Sedlacek, Alexa R.C.; Price, Gregory D.; Hips, Kinga; Twitchett, Richard J.

doi:10.1016/j.palaeo.2015.09.004

Cited by 44 publications

(66 citation statements)

References 85 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As noted previously [11], however, and as recorded in neighbouring regions such as Hungary [12], there is no significant change in the composition of benthic faunas (Fig 8). The trend towards more positive C-isotope values is temporarily interrupted at the base of the upper Siusi Member by a ~2‰ negative isotope excursion, before resuming through the remaining Siusi Member (Fig 3).…”

Section: Discussionsupporting

confidence: 82%

Subsequent biotic crises delayed marine recovery following the late Permian mass extinction event in northern Italy

et al. 2017

Self Cite

View full text Add to dashboard Cite

The late Permian mass extinction event was the largest biotic crisis of the Phanerozoic and has the longest recovery interval of any extinction event. It has been hypothesised that subsequent carbon isotope perturbations during the Early Triassic are associated with biotic crises that impeded benthic recovery. We test this hypothesis by undertaking the highest-resolution study yet made of the rock and fossil records of the entire Werfen Formation, Italy. Here, we show that elevated extinction rates were recorded not only in the Dienerian, as previously recognised, but also around the Smithian/Spathian boundary. Functional richness increases across the Smithian/Spathian boundary associated with elevated origination rates in the lower Spathian. The taxonomic and functional composition of benthic faunas only recorded two significant changes: (1) reduced heterogeneity in the Dienerian, and (2) and a faunal turnover across the Smithian/Spathian boundary. The elevated extinctions and compositional shifts in the Dienerian and across the Smithian/Spathian boundary are associated with a negative and positive isotope excursion, respectively, which supports the hypothesis that subsequent biotic crises are associated with carbon isotope shifts. The Spathian fauna represents a more advanced ecological state, not recognised in the previous members of the Werfen Formation, with increased habitat differentiation, a shift in the dominant modes of life, appearance of stenohaline taxa and the occupation of the erect and infaunal tiers. In addition to subsequent biotic crises delaying the recovery, therefore, persistent environmental stress limited the ecological complexity of benthic recovery prior to the Spathian.

show abstract

Section: Discussionsupporting

confidence: 82%

Subsequent biotic crises delayed marine recovery following the late Permian mass extinction event in northern Italy

et al. 2017

Self Cite

View full text Add to dashboard Cite

show abstract

“…Therefore, it is unlikely that photosynthetic cyanobacterial mats provided enough oxygen alone to sustain a benthic community. Based on our results, a more parsimonious explanation is that benthic oxygenation was related to a wave‐aerated shallow setting as observed in non‐microbial shallow environments (Beatty et al., ; Chen, Fraiser, & Bolton, ; Foster, Danise, Price, & Twitchett, ; Foster et al., , ; Pietsch & Bottjer, ; Zonneveld, Gingras, & Beatty, ).…”

Section: Discussionsupporting

confidence: 67%

“…Microbial mats are inferred to have been abundant in non‐microbialite successions of the Early Triassic by the high abundance of wrinkle marks (Mata & Bottjer, , ; Pruss & Bottjer, ). Unlike microbialites, wrinkle‐marked sediments are not known to yield diverse or unique benthic assemblages of grazers despite being ubiquitous in some Early Triassic successions, such as the Bódvaszilas Sandstone Formation (Foster et al., ; Hips, ), Werfen Formation (Foster, Danise, Price, & Twitchett, ; a), and Virgin Limestone Formation (Hofmann, Hautmann, Wasmer, & Bucher, ; Mata & Bottjer, ). Microbial mats, therefore, are unlikely to have provided a unique, unlimited food supply in the aftermath of the latest Permian mass extinction.…”

Section: Discussionmentioning

confidence: 99%

“…Systematic studies of the species that occur in the microbialites also find that at both the genus and species levels the microbialites did not contain a unique suite of benthic invertebrates, and these taxa are also mainly characterized as cosmopolitan taxa (Foster et al, 2019;Hautmann et al, 2015). This observed difference between (Foster et al, 2015;Hips, 1996), Werfen Formation (Foster, Danise, Price, & Twitchett, 2017;a), and Virgin Limestone Formation (Hofmann, Hautmann, Wasmer, & Bucher, 2013;Mata & Bottjer, 2009). Microbial mats, therefore, are unlikely to have provided a unique, unlimited food supply in the aftermath of the latest Permian mass extinction.…”

Section: "Microbialite Refuge" Hypothesismentioning

confidence: 96%

See 1 more Smart Citation

Facies selectivity of benthic invertebrates in a Permian/Triassic boundary microbialite succession: Implications for the “microbialite refuge” hypothesis

Foster

Lehrmann

et al. 2019

Geobiology

Self Cite

View full text Add to dashboard Cite

Thrombolite and stromatolite habitats are becoming increasingly recognized as important refuges for invertebrates during Phanerozoic Oceanic Anoxic Events (OAEs); it is posited that oxygenic photosynthesis by cyanobacteria in these microbialites provided a refuge from anoxic conditions (i.e., the “microbialite refuge” hypothesis). Here, we test this hypothesis by investigating the distribution of ~34, 500 benthic invertebrate fossils found in ~100 samples from a microbialite succession that developed following the latest Permian mass extinction event on the Great Bank of Guizhou (South China), representing microbial (stromatolites and thrombolites) and non‐microbial facies. The stromatolites were the least taxonomically diverse facies, and the thrombolites also recorded significantly lower diversities when compared to the non‐microbial facies. Based on the distribution and ornamentation of the bioclasts within the thrombolites and stromatolites, the bioclasts are inferred to have been transported and concentrated in the non‐microbial fabrics, that is, cavities around the microbial framework. Therefore, many of the identified metazoans from the post‐extinction microbialites are not observed to have been living within a microbial mat. Furthermore, the lifestyle of many of the taxa identified from the microbialites was not suited for, or even amenable to, life within a benthic microbial mat. The high diversity of oxygen‐dependent metazoans in the non‐microbial facies on the Great Bank of Guizhou, and inferences from geochemical records, suggests that the microbialites and benthic communities developed in oxygenated environments, which disproves that the microbes were the source of the oxygenation. Instead, we posit that microbialite successions represent a taphonomic window for exceptional preservation of the biota, similar to a Konzentrat‐Lagerstätte, which has allowed for diverse fossil assemblages to be preserved during intervals of poor preservation.

show abstract

“…Certainly, some filter feeding organisms such as crinoids seem to have re-diversified earlier in the Boreal Realm (at least after the latest Induan A. fassaensis bivalve zone equivalent63), yet typical encrusters including cyclostome bryozoans and serpulid polychaetes did not fully re-establish until the Rhaetian64. This conspicuous underrepresentation – which is likely not taphonomic because Palaeozoic encrusters possessed similar calcitic skeletons65 and cemented to the substrate throughout the sessile phase of their life cycle – accords with extreme fluctuations in oceanic salinity66, de-oxygenation94067, intense weathering and run-off that are thought to have promoted widespread eutrophication and the proliferation of stromatolite-forming microbial substrates10112668 in the absence of mat-grazing organisms5569. Moreover, these markedly atypical conditions apparently favoured microconchids, which were ubiquitous across marine to brackish and even freshwater habitats367071 and readily colonized microbial/algal substrates, perhaps because of their stability and immediate supply of nutrients and oxygen3472.…”

Section: Discussionmentioning

confidence: 99%

Boreal earliest Triassic biotas elucidate globally depauperate hard substrate communities after the end-Permian mass extinction

Zatoń

Niedźwiedzki

Blom

et al. 2016

Sci Rep

View full text Add to dashboard Cite

The end-Permian mass extinction constituted the most devastating biotic crisis of the Phanerozoic. Its aftermath was characterized by harsh marine conditions incorporating volcanically induced oceanic warming, widespread anoxia and acidification. Bio-productivity accordingly experienced marked fluctuations. In particular, low palaeolatitude hard substrate communities from shallow seas fringing Western Pangaea and the Tethyan Realm were extremely impoverished, being dominated by monogeneric colonies of filter-feeding microconchid tubeworms. Here we present the first equivalent field data for Boreal hard substrate assemblages from the earliest Triassic (Induan) of East Greenland. This region bordered a discrete bio-realm situated at mid-high palaeolatitude (>30°N). Nevertheless, hard substrate biotas were compositionally identical to those from elsewhere, with microconchids encrusting Claraia bivalves and algal buildups on the sea floor. Biostratigraphical correlation further shows that Boreal microconchids underwent progressive tube modification and unique taxic diversification concordant with changing habitats over time. We interpret this as a post-extinction recovery and adaptive radiation sequence that mirrored coeval subequatorial faunas, and thus confirms hard substrate ecosystem depletion as a hallmark of the earliest Triassic interval globally.

show abstract

Environmental controls on the post-Permian recovery of benthic, tropical marine ecosystems in western Palaeotethys (Aggtelek Karst, Hungary)

Cited by 44 publications

References 85 publications

Subsequent biotic crises delayed marine recovery following the late Permian mass extinction event in northern Italy

Subsequent biotic crises delayed marine recovery following the late Permian mass extinction event in northern Italy

Facies selectivity of benthic invertebrates in a Permian/Triassic boundary microbialite succession: Implications for the “microbialite refuge” hypothesis

Boreal earliest Triassic biotas elucidate globally depauperate hard substrate communities after the end-Permian mass extinction

Contact Info

Product

Resources

About