Middle Devonian palynomorphs from southern Moravia: an evidence of rapid change from terrestrial deltaic plain to carbonate platform conditions

Vavrdová, Milada; Dašková, Jiřina

doi:10.2478/v10096-011-0010-2

Cited by 4 publications

(1 citation statement)

References 25 publications

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“…1B). The section above the entrance tunnel is the GSSP locality of the Přídolí Series (described in detail by Kříž et al 1986) Bouček (1937), Chlupáč (1953Chlupáč ( , 1957, Barnett (1972), Chlupáč et al (1972, Kříž et al (1986), Vavrdová (1989), Manda (2003Manda ( , 2008, Chlupáč and Hladil (2001) Kříž (1965, unpublished data). His study was the basis for the GSSP de nition of the Přídolí Series (Kříž et al 1981(Kříž et al , 1986) and the recent subdivision of the Series (Manda et al 2023).…”

Section: Požáry Quarriesmentioning

confidence: 99%

The Požáry section in the Prague Synform – a possible candidate auxiliary section for the basal Emsian GSSP redefinition

Slavík,

Weinerová,

Weiner

et al. 2024

Preprint

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The global correlation of the basal Emsian boundary is the most problematic issue within the Devonian System and still remains among the most problematic issues in the global Palaeozoic stratigraphy. The Požár 3 section in the Prague Synform, Czech Republic presented herein has many similarities with the published proposal for candidate section for the prospective basal GSSP redefinition – the Mramorka section, from the same area. It has strikingly similar lithology with the typical varied development of the Praha Formation which contains the Bohemian Graptolite Event (BGE), i.e. a prominent lithological marker in the NW part of the Prague Synform. The data from complex multiproxy studies including biostratigraphy, sedimentology, gamma-ray spectrometry, magnetic susceptibility, multi-element geochemistry (INAA, EDXRF), and stable isotopes (δ18O, δ13C) were integrated. These mostly show the same trends as in the Mramorka section and can also be interpreted accordingly. The gracilis Event, an alternative marker approximating the traditional boundary between the Pragian and Emsian stages has been confirmed in the Požár 3 section. The conodont index Latericriodus bilatericrescens gracilis Bultynck, 1985 enters, however, higher than in the Mramorka section, but still below the BGE. This confirms the Mramorka section as the best candidate for the basal Emsian GSSP relocation, whereas the Požár 3 section presented here has a great potential to be prospectively selected as Standard Auxiliary Boundary Stratotype (SABS).

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Section: Požáry Quarriesmentioning

confidence: 99%

The Požáry section in the Prague Synform – a possible candidate auxiliary section for the basal Emsian GSSP redefinition

Slavík,

Weinerová,

Weiner

et al. 2024

Preprint

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Netromorph acritarchs and related morphotypes in the middle Palaeozoic: a proposal for classification

Manzano,

Monnet,

Mertens

et al. 2025

Palynology

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Reconstructing the terrestrial flora and marine plankton of the Middle Devonian of Spain: implications for biotic interchange and palaeogeography

Askew¹,

Wellman²

2019

JGS

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A rich and well-preserved palynomorph assemblage from the Middle Devonian of northern Spain is analysed with regard to palaeobiogeography and palaeocontinental reconstruction. The communities of terrestrial plants (dispersed spores), marine zooplankton (chitinozoans) and marine phytoplankton (acritarchs and prasinophytes) all show significant endemism. They are depauperate in some respects, missing common species found elsewhere, but also containing many endemic taxa. Measures of similarity and cluster analysis reveal little relatedness to other contemporary assemblages, with both the spore and phytoplankton communities being sister groups to all other communities except one. Attempted correlation with local, regional and global sea-level and transgression-regression schemes is complicated by the absence of key index palynomorphs in this unusual assemblage. The distinctive sedimentary sequence of northern Spain may reflect an increased clastic input to the marine shelf resulting from an increasingly monsoonal climate, possibly connected to the Kacák extinction event. The assemblage's unusual, endemic character requires restrictions on dispersal. The terrestrial spore assemblage suggests that large tracts of ocean existed, without appreciable land bridges, between the Armorican Terrane Assemblage and Laurussia to the north and Gondwana to the south. The phytoplankton communities support existing evidence for significant east to west ocean currents through the Rheic Ocean.

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Middle Devonian palynomorphs from southern Moravia: an evidence of rapid change from terrestrial deltaic plain to carbonate platform conditions

Cited by 4 publications

References 25 publications

The Požáry section in the Prague Synform – a possible candidate auxiliary section for the basal Emsian GSSP redefinition

The Požáry section in the Prague Synform – a possible candidate auxiliary section for the basal Emsian GSSP redefinition

Netromorph acritarchs and related morphotypes in the middle Palaeozoic: a proposal for classification

Reconstructing the terrestrial flora and marine plankton of the Middle Devonian of Spain: implications for biotic interchange and palaeogeography

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