The terminal Permian in European Russia: Vyaznikovian Horizon, Nedubrovo Member, and Permian–Triassic boundary

Lozovsky, V. R.; Balabanov, Yu. P.; Karasev, E. V.; Новиков, И. В.; Ponomarenko, Alexandr G.; Yaroshenko, O. P.

doi:10.1134/s0869593816040043

Cited by 16 publications

(6 citation statements)

References 26 publications

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“…Detailed descriptions of associations have come from Western Europe [42–44], and from Russia in deposits associated with creation of the Ural Mountains and the Volga and Kama River basins [45–47]. One latest Permian site, the Sokovka locality in European Russia [48], records the earliest occurrence of leaf mining [45], a distinctive interaction whose earliest occurrence previously was recorded from the Middle Triassic [9]. In East Asia, interactions, including those of mite borings, have focused principally on lower Permian deposits in the Pingquan district of Hebei Province, North China [49], bored spores from the middle Permian Ningxia Hui Autonomous Region, North China [50], middle–upper Permian deposits of Taiyuan city and the Xiedao locality, both in Shanxi Province, North China [51,52], the Permian of the northern Helan Mountains, in the Inner Mongolia (Nei Mongol) and Ningxia Huizu Autonomous Regions, northern China [53] and from the upper Permian of Yunnan Province, South China [54], representing the North China and South China tectonic terranes, respectively.…”

Section: Introductionmentioning

confidence: 99%

Floral Assemblages and Patterns of Insect Herbivory during the Permian to Triassic of Northeastern Italy

2016

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To discern the effect of the end-Permian (P-Tr) ecological crisis on land, interactions between plants and their insect herbivores were examined for four time intervals containing ten major floras from the Dolomites of northeastern Italy during a Permian–Triassic interval. These floras are: (i) the Kungurian Tregiovo Flora; (ii) the Wuchiapingian Bletterbach Flora; (iii) three Anisian floras; and (iv) five Ladinian floras. Derived plant–insect interactional data is based on 4242 plant specimens (1995 Permian, 2247 Triassic) allocated to 86 fossil taxa (32 Permian, 56 Triassic), representing lycophytes, sphenophytes, pteridophytes, pteridosperms, ginkgophytes, cycadophytes and coniferophytes from 37 million-year interval (23 m.yr. Permian, 14 m.yr. Triassic). Major Kungurian herbivorized plants were unaffiliated taxa and pteridosperms; later during the Wuchiapingian cycadophytes were predominantly consumed. For the Anisian, pteridosperms and cycadophytes were preferentially consumed, and subordinately pteridophytes, lycophytes and conifers. Ladinian herbivores overwhelming targeted pteridosperms and subordinately cycadophytes and conifers. Throughout the interval the percentage of insect-damaged leaves in bulk floras, as a proportion of total leaves examined, varied from 3.6% for the Kungurian (N = 464 leaves), 1.95% for the Wuchiapingian (N = 1531), 11.65% for the pooled Anisian (N = 1324), to 10.72% for the pooled Ladinian (N = 923), documenting an overall herbivory rise. The percentage of generalized consumption, equivalent to external foliage feeding, consistently exceeded the level of specialized consumption from internal feeding. Generalized damage ranged from 73.6% (Kungurian) of all feeding damage, to 79% (Wuchiapingian), 65.5% (pooled Anisian) and 73.2% (pooled Ladinian). Generalized-to-specialized ratios show minimal change through the interval, although herbivore component community structure (herbivore species feeding on a single plant-host species) increasingly was partitioned from Wuchiapingian to Ladinian. The Paleozoic plant with the richest herbivore component community, the coniferophyte Pseudovoltzia liebeana, harbored four damage types (DTs), whereas its Triassic parallel, the pteridosperm Scytophyllum bergeri housed 11 DTs, almost four times that of P. liebeana. Although generalized DTs of P. liebeana were similar to S. bergeri, there was expansion of Triassic specialized feeding types, including leaf mining. Permian–Triassic generalized herbivory remained relatively constant, but specialized herbivores more finely partitioned plant-host tissues via new feeding modes, especially in the Anisian. Insect-damaged leaf percentages for Dolomites Kungurian and Wuchiapingian floras were similar to those of lower Permian, north-central Texas, but only one-third that of southeastern Brazil. Global herbivore patterns for Early Triassic plant–insect interactions remain unknown.

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Section: Introductionmentioning

confidence: 99%

Floral Assemblages and Patterns of Insect Herbivory during the Permian to Triassic of Northeastern Italy

2016

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“…A controversy exists regarding whether there is a hiatus (e.g., Lozovsky et al, 2016) or continuity (e.g., Golubev et al, 2012a, b, 2015; Golubev, 2017a) in the latest Permian–earliest Triassic geologic record in the study area. While there is no doubt about the presence of various (diachronic) locally developed stratigraphic gaps around the Permian-Triassic boundary in the Moscow Syneclise (e.g., Lozovsky, 1992, 1997; Lozovsky et al, 2016), the studied sections located around the towns of Vyazniki and Gorokhovets expose a continuous late Permian (Zhukovian Regional Stage) to Early Triassic (Vokhmian Regional Stage) profile (e.g., Golubev et al, 2012a, b). Regardless of these controversial discussions, neither the Zhukovian Regional Stage nor the Vokhmian Regional Stage are, so far, directly correlated to the marine Standard Global Chronostratigraphic Scale.…”

Section: Geologic Settingmentioning

confidence: 96%

Late Permian conchostracans (Crustacea, Branchiopoda) from continental deposits in the Moscow Syneclise, Russia

et al. 2018

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The Moscow Syneclise on the East European Platform is an important area for the study of the continental biota of late Permian to Early Triassic age in continuous sections. This study attempts a taxonomic description of the late Permian conchostracan fauna of this area. The rich, new material was collected, bed by bed, during geological and paleontological excavations of lacustrine and fluvial deposits of the Obnora Formation and Vokhma Formation of the late Permian Zhukovian Regional Stage near the towns of Vyazniki and Gorokhovets. The conchostracan fauna of the Zhukovian Regional Stage consists predominantly ofPseudestheriaand less frequently ofPalaeolimnadiopsis. In the earliest Triassic Vokhmian Regional Stage, a more diverse fauna includingEuestheria,Magniestheria,Cornia,Palaeolimnadiopsis, andRossolimnadiopsiswas already recorded. The preliminary taxonomic determination of the pseudestheriids from the Zhukovian Regional Stage is intended to serve as a prerequisite for future studies of late Permian conchostracan biostratigraphy on the regional to interregional scale.

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“…During the Vyaznikovian, the flora was dominated by peltasperms (50-80%), followed by ginkgophytes and conifers. Ferns were rare and sphenophytes only locally present (Newell et al, 1999;Naugolnykh, 2005;Karasev and Krassilov, 2006;Lozovsky et al, 2016). As such, this plant assemblage includes typical elements of the East European platform and the Zechstein flora of Europe.…”

Section: South Urals Russiamentioning

confidence: 99%

“…The Vyaznikovian fossil assemblage also shows abundant evidence for plant-arthropod interactions (Krassilov and Karasev, 2008), as well as a rich insect fauna including Thysanoptera (Lophoneurida), Neuroptera, Mecoptera, Hemiptera, Paleomanteida, Coleoptera, Trichoptera, Blattida, Grylloblattida, Orthoptera, and Dermaptera (Protelytroptera). Cockroaches (Blattida) dominate (65% of insect remnants); leafhoppers (Hemiptera) and grylloblattids (Grylloblattoda), consisting of 17% and 8%, respectively, are less common (Aristov et al, 2013;Lozovsky et al, 2016).…”

Section: South Urals Russiamentioning

confidence: 99%

“…While the floral records are scarce and do not provide definitive data for further analysis, the two are marked by the presence of conifers. The ((Southern Urals, Zechstein), Southern Alps) cluster is mainly grouped on the basis of floral similarity, with abundant peltasperms, conifers, and well-represented ginkgophytes (e.g., Schweitzer, 1986;Uhl and Kerp, 2002;Naugolnykh, 2005;Karasev and Krassilov, 2006;Lozovsky et al, 2016;Kustatscher et al, 2017). The relative abundance of pareiasaurs also links the Southern Alps, South Urals and the Zechstein, although the latter two are characterised by the presence of dicynodonts in higher abundance compared to the Southern Alps.…”

Section: Late Permian Biogeographymentioning

confidence: 99%

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Late Permian (Lopingian) Terrestrial Ecosystems: A Global Comparison With New Data From the Low Latitude Bletterbach Biota

Petti¹,

Bernardi²,

Kustatscher³

et al. 2017

Geological Society of America Abstracts With Programs

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Keywords:Tetrapoda flora phytoprovinces plant-insect interactions climate endemism latitudinal diversity gradient A B S T R A C TThe late Palaeozoic is a pivotal period for the evolution of terrestrial ecosystems. Generalised warming and aridification trends resulted in profound floral and faunal turnover as well as increased levels of endemism. The patchiness of well-preserved, late Permian terrestrial ecosystems, however, complicates attempts to reconstruct a coherent, global scenario. In this paper, we provide a new reconstruction of the Bletterbach Biota (Southern Alps, NE Italy), which constitutes a unique, low-latitude record of Lopingian life on land. We also integrate floral, faunal (from skeletal and footprint studies), and plant-insect interaction data, as well as global climatic interpretations, to compare the composition of the 14 best-known late Permian ecosystems. The results of this ecosystem-scale analysis provide evidence for a strong correlation between the distribution of the principal clades of tetrapod herbivores (dicynodonts, pareiasaurs, captorhinids), phytoprovinces and climatic latitudinal zonation. We show that terrestrial ecosystems were structured and provincialised at high taxonomic levels by climate regions, and that latitudinal distribution is a key predictor of ecosystem compositional affinity. A latitudinal diversity gradient characterised by decreasing richness towards higher latitudes is apparent: mid-to lowlatitude ecosystems had the greatest amount of high-level taxonomic diversity, whereas those from high latitudes were dominated by small numbers of higher taxa. The high diversities of tropical ecosystems stem from their inclusion of a mixture of late-occurring holdovers from the early Permian, early members of clades that come to prominence in the Triassic, and contemporary taxa that are also represented in higher latitude assemblages. A variety of evidence suggests that the Permian tropics acted as both a cradle (an area with high origination rates) and museum (an area with low extinction rates) for biodiversity.

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The terminal Permian in European Russia: Vyaznikovian Horizon, Nedubrovo Member, and Permian–Triassic boundary

Cited by 16 publications

References 26 publications

Floral Assemblages and Patterns of Insect Herbivory during the Permian to Triassic of Northeastern Italy

Floral Assemblages and Patterns of Insect Herbivory during the Permian to Triassic of Northeastern Italy

Late Permian conchostracans (Crustacea, Branchiopoda) from continental deposits in the Moscow Syneclise, Russia

Late Permian (Lopingian) Terrestrial Ecosystems: A Global Comparison With New Data From the Low Latitude Bletterbach Biota

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