Conchostracans in continental deposits of the Zechstein–Buntsandstein transition in central Germany: Taxonomy and biostratigraphic implications for the position of the Permian–Triassic boundary within the Zechstein Group

Scholze, Frank; Schneider, Jörg W.; Werneburg, Ralf

doi:10.1016/j.palaeo.2016.02.021

Cited by 26 publications

(55 citation statements)

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“…Cornia Lutkevich, 1938 is characterized by a narrow spine on the larval valve. This genus belongs to the family Vertexiidae Kobayashi, 1954 [4,17]. A specimen identified as "C. papillaria" Lutkevich, 1937 was found in the Kedrovii Mb.…”

Section: Resultsmentioning

confidence: 99%

“…in the Babii Kamen section. This species is an indicator of the Lower Triassic [4,18,20] and has a fine pitted shell microsculpture ( Fig. 3).…”

Section: Resultsmentioning

confidence: 99%

“…Permian and Triassic conchostracans are widely distributed in continental successions all around the world: they occur on the East European Platform, in Eastern and Western Siberia, Europe, Africa, Asia, Arabia, India, Antarctica, Australia, North and South America. Their use in biostratigraphy has been in focus of many research initiatives [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

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Microsculpture Study of Late Permian and Early Triassic Conchostracans From the Babii Kamen Section (Western Siberia)

Sabirova¹

2019

Uch. Zap. Kazan. Univ. Ser. Estestv. Nauki

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The microsculpture of Permian and Triassic conchostracans from the Babii Kamen section (Western Siberia) was studied in order to determine the significance of microsculpture inthe taxonomy of conchostracan species. Five types of ornamentation have been identified in conchostracans from the Permian-Triassic reference section of Western Siberia (Babii Kamen section): pitted, nodular, reticulated, radial lirae, radial fringes. The results show that several microsculpture types are common for the genus level of conchostracans. Transition from one type of ornamentation to another was noted in three species: ?Megasitum lopokolense Novojilov, 1970, "Cornia papillaria" Lutkevich, 1937, and "Concherisma tomensis" Novojilov, 1958. The observed changes in the shell microsculpture types can be considered as a taxonomic feature for these three species and should form the base for future taxonomical revisions.

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Section: Resultsmentioning

confidence: 99%

“…in the Babii Kamen section. This species is an indicator of the Lower Triassic [4,18,20] and has a fine pitted shell microsculpture ( Fig. 3).…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Microsculpture Study of Late Permian and Early Triassic Conchostracans From the Babii Kamen Section (Western Siberia)

Sabirova¹

2019

Uch. Zap. Kazan. Univ. Ser. Estestv. Nauki

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“…The sedimentary succession of the Zechstein and Buntsandstein Groups in Central Germany were the focus of numerous recent studies (e.g., Szurlies et al, 2003;Bachmann and Kozur, 2004;Korte and Kozur, 2005;Kozur and Weems, 2010;Hiete et al, 2006Hiete et al, , 2013Szurlies, 2013;Scholze et al, 2016) examining both the position of the Permian-Triassic boundary, and the palaeoenvironmental changes during the end-Permian mass extinction. As known from previous studies, the end-Permian mass extinction event has been linked to oceanic anoxia (Song et al, 2014), ocean acidification (e.g., Clarkson et al, 2015), or volcanism (Reichow et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

“…Our interdisciplinary study was performed on classical and new sections of the Zechstein-Buntsandstein transition in Thuringia, Saxony-Anhalt, and Hesse ( Table 1). The work differs from previous studies in central Germany (e.g., Bachmann and Kozur, 2004;Korte and Kozur, 2005;Kozur andWeems, 2010, 2011) by the following aspects: (1) more dense sample intervals for δ 13 Ccarb and δ 18 Ocarb analyses; (2) studies of new key sections (i.e., Caaschwitz quarry at the Galgenberg hill, drill core Caaschwitz 6/2012); (3) use of latest published conchostracan biostratigraphic correlations to the Late Permian-Early Triassic continental deposits in central Russia and central Germany (Scholze et al, 2016). Table 1.…”

Section: Introductionmentioning

confidence: 99%

A multistratigraphic approach to pinpoint the Permian-Triassic boundary in continental deposits: The Zechstein–Lower Buntsandstein transition in Germany

Scholze

Wang

Kirscher

et al. 2017

Global and Planetary Change

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The Central European Basin is very suitable for high-resolution multistratigraphy of Late Permian to Early Triassic continental deposits. Here, the well exposed transition of the lithostratigraphic Zechstein and Buntsandstein Groups of central Germany was studied for isotope-chemostratigraphy (δ 13 Corg, δ 13 Ccarb, δ 18 Ocarb), major-and trace-element geochemistry, magnetostratigraphy, palynology, and conchostracan biostratigraphy. The analyzed material was obtained from both classical key sections (abandoned Nelben clay pit, Caaschwitz quarries, Thale railway cut, abandoned Heinebach clay pit) and a recent drill core section (Caaschwitz 6/2012) spanning the Permian-Triassic boundary. The Zechstein-Buntsandstein transition consists of a complex sedimentary facies comprising sabkha, playalake, aeolian, and fluvial deposits of predominantly red-colored siliciclastics and intercalations of lacustrine oolitic limestones. The new data on δ 13 Corg range from-28.73 ‰ to-21.67 ‰ showing multiple excursions. Strongest negative shifts correlate to single intercalations of oolites and gray-colored clayey siltstones, while isotopically more heavy shifts correspond to an onset of palaeosoil overprint. The δ 13 Ccarb range from-9.69 ‰ to-1.34 ‰ with strongest variations recorded in dolomitic nodules from the Zechstein Group. A correlation of δ 18 Ocarb-values with the carbonate content is interpreted to reflect diagenesis. In contrast to sedimentary facies shifts across the Zechstein-Buntsandstein boundary, majorelement values used as proxy (CIA, CIA*, CIA-K) for palaeoclimate conditions indicate climatic stability. Trace-element data used for a geochemical characterization of the Late Permian to Early Triassic transition in central Germany indicate a decrease in the Rb at the Zechstein-Buntsandstein boundary.New palynological data obtained from the Caaschwitz quarry section reveal occurrences of Late Permian palynomorphs in the Lower Fulda Formation, while Early Triassic elements were recorded in the upper part of the Upper Fulda Formation. The present study confirms an onset of a normal-polarized magnetozone in the Upper Fulda Formation of the Caaschwitz quarry section supporting an interregional correlation of this crucial stratigraphic interval with the normal magnetic polarity of the basal Early Triassic known from marine sections in other regions. Based on a synthesis of the multistratigraphic data, the Permian-Triassic boundary is proposed to be placed in the lower part of the Upper Fulda Formation, which is biostratigraphically confirmed by the first occurrence date of the Early Triassic Euestheria gutta-Palaeolimnadiopsis vilujensis conchostracan fauna. Rare records of conchostracans reported from the siliciclastic deposits of the lower to middle Zechstein Group may point to its potential for further biostratigraphic subdivision of the Late Permian continental deposits.

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Biostratigraphic significance and geometric morphometrics of Euestheria gutta (Crustacea: Branchiopoda: Spinicaudata): An index fossil of continental Permian–Triassic transitional beds

et al. 2021

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The Permian-Triassic mass extinction was the largest biotic extinction event in the Phanerozoic and affected both marine and continental life. Marine Permian-Triassic transitional sequences can be correlated in many regions, but this has proved difficult for continental successions. A growing number of studies show that spinicaudatans are some of the most common fossils in continental strata and can be used as index fossils for continental stratigraphic division and correlation. Here we document the morphology and biostratigraphic significance of Euestheria gutta based on wellpreserved fossils from southwestern China. It shows strong intraspecific morphological variation, while the most important feature is the strongly convex larval valve and significant finely pitted to weakly reticulated ornamentation on the growth bands.Evidence from palaeobotany, charcoal, and organic carbon isotopes indicated that the continental mass extinction in southwestern China was marked by the catastrophic loss of tropical rainforest vegetation, enhanced wildfire and a negative carbon isotope excursion (CIE) during the P-Tr transition. Meanwhile, abundant E. gutta first appeared at the onset of the negative CIE and just above the horizon of the loss of macroflora. Based on the global geographic distribution of E. gutta and temporal correlation, we conclude that this species existed from the latest Permian to the earliest Triassic, and the occurrence of E. gutta could be used as an index fossil of the continental mass extinction interval or P-Tr transitional beds.

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Conchostracans in continental deposits of the Zechstein–Buntsandstein transition in central Germany: Taxonomy and biostratigraphic implications for the position of the Permian–Triassic boundary within the Zechstein Group

Cited by 26 publications

References 50 publications

Microsculpture Study of Late Permian and Early Triassic Conchostracans From the Babii Kamen Section (Western Siberia)

Microsculpture Study of Late Permian and Early Triassic Conchostracans From the Babii Kamen Section (Western Siberia)

A multistratigraphic approach to pinpoint the Permian-Triassic boundary in continental deposits: The Zechstein–Lower Buntsandstein transition in Germany

Biostratigraphic significance and geometric morphometrics of Euestheria gutta (Crustacea: Branchiopoda: Spinicaudata): An index fossil of continental Permian–Triassic transitional beds

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