Environmental and biotic changes across the Permian–Triassic boundary in western Tethys: The Bulla parastratotype, Italy

Farabegoli, Enzo; Perri, Maria Cristina; Posenato, Renato

doi:10.1016/j.gloplacha.2006.06.009

Cited by 99 publications

(101 citation statements)

References 57 publications

(88 reference statements)

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“…2), to define the extinction event which is most probably somewhat above ). This suggestion is in agreement with palaeontological results by Kozur (1994), but in contrast to sedimentological interpretations of the generation of the oolite or the interpretation of the disappearance of most biota which occurs at the base of the TOH in other western part of the Southern Alps PTB sections (Farabegoli et al 2007;Posenato 2009). The biota, however, were affected at the base of the TOH, but fusulinids and Permian holothurian sclerites still occur in the lower Tesero Oolite Horizon (e.g., Broglio Loriga & Cassinis 1992;Kozur 1994;Cirilli et al 1998;Cassinis et al 2000;Gorjan et al 2007).…”

Section: Geological Settingsupporting

confidence: 92%

“…The base of the Triassic, however, is defined by the International Commission on Stratigraphy by the first appearance datum (FAD) of the conodont Hindeodus parvus (Kozur & Pjatakova, 1976). Conodonts are rare in the Southern Alps, but Hindeodus and Isaricella occur, enabling identification of the boundary in the Pufels and Tesero sections and in the Gartnerkofel core (Perri 1991;Schaenlaub 1991;Farabegoli & Perri 1998;Nicora & Perri 1999;Farabegoli et al 2007;Posenato 2009Posenato , 2010. No conodont distributions are published for the Seis section.…”

Section: Geological Settingmentioning

confidence: 99%

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Organic carbon isotope values from the Late Permian Seis/Siusi succession (Dolomites, Italy): Implications for palaeoenvironmental changes

et al. 2011

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The Permian‐Triassic boundary is marked by a globally prominent negative carbon isotope excursion traceable in marine carbonates and organic matter. In the shallow marine carbonate succession at Seis/Siusi (Dolomites, Italy), the δ13Ccarb and δ13Corg signatures follow the general Permian‐Triassic boundary carbon isotope trend, but the δ13Corg values are slightly less depleted in 13C in two episodes representing restricted lagoonal environments and in the period around the Tesero Oolite Horizon. This isotopically less depleted organic matter in the lagoons is interpreted to be most likely caused by poor oxygen ventilation and/or slightly modified salinity which may have led to restricted bioproductivity and increased hence the relative amounts of continental‐sourced organic matter. In addition, elevated riverine influx and supply of terrestrial organic matter, perhaps triggered by a wet period, might be the cause for the relatively less depleted 13C in the organic matter around the Tesero Oolite Horizon and in overlying sediments. (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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Section: Geological Settingsupporting

confidence: 92%

Section: Geological Settingmentioning

confidence: 99%

Organic carbon isotope values from the Late Permian Seis/Siusi succession (Dolomites, Italy): Implications for palaeoenvironmental changes

et al. 2011

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“…The precise position of the PT boundary in the Southern Alps has been debated for long time (see Broglio Loriga & Cassinis, 1992 for a review). Although some early works put the boundary at or very close to the Bellerophon-Werfen Formation limit (Bosellini, 1964;Assereto et al, 1973;Posenato, 1988), the PT boundary is now thought to lie within (Pasini, 1985;Broglio Loriga et al, 1986;Visscher & Brugman, 1988;Farabegoli & Perri, 1998;Farabegoli et al, 2007) or at the top (Wignall et al, 1996) …”

Section: Geological Settingmentioning

confidence: 99%

The Permo-Triassic Tetrapod Faunal Diversity in the Italian Southern Alps

Avanzini¹,

Bernardi²,

Nicosia³

2011

Earth and Environmental Sciences

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“…The great abundance and cosmopolitan distribution of the lingulids during the earliest Triassic are related to their wide tolerance towards fluctuations of oxygen, temperature, and acidity. (e.g., Wignall, 2001;Heydari andHassanzadeh, 2003, Payne et al, 2007;Wignall et al, 2009;Farabegoli et al, 2007;Svensen et al, 2009;Payne and Clapham, 2012;Brand et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Adaptive strategies and environmental significance of lingulid brachiopods across the late Permian extinction

Posenato

Holmer

Prinoth³

2014

Palaeogeography, Palaeoclimatology, Palaeoecology

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The main adaptive strategies of Lingularia yini, in comparison with the Permian species, include: i) shell miniaturization; ii) increasing of the lophophoral cavity surface (respiratory surface); iii) increasing of shell width/length ratio. These modifications are interpreted as adaptations towards warming and hypoxia, two main killing mechanisms of the marine biota.The recovery species Lingularia borealis maintains a large lophophoral cavity, indicating an adaptation towards predominant low oxygenated bottom marine waters.The appearance and the great abundance of Lingularia yini in the Mazzin Member (early Induan) can represent a proxy of dysaerobic and acidic marine conditions, which determined the appearance of the second phase of the Lilliput biota, characterized by the definitive disappearance of the rhynchonelliform brachiopods and calcareous algae in the Southern Alps.

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Environmental and biotic changes across the Permian–Triassic boundary in western Tethys: The Bulla parastratotype, Italy

Cited by 99 publications

References 57 publications

Organic carbon isotope values from the Late Permian Seis/Siusi succession (Dolomites, Italy): Implications for palaeoenvironmental changes

Organic carbon isotope values from the Late Permian Seis/Siusi succession (Dolomites, Italy): Implications for palaeoenvironmental changes

The Permo-Triassic Tetrapod Faunal Diversity in the Italian Southern Alps

Adaptive strategies and environmental significance of lingulid brachiopods across the late Permian extinction

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