Ichnological record of the Frasnian–Famennian boundary interval: two examples from the Holy Cross Mts (Central Poland)

Stachacz, Michał; Uchman, Alfred; Rodrı́guez-Tovar, Francisco J.

doi:10.1007/s00531-016-1308-1

Cited by 12 publications

(2 citation statements)

References 39 publications

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“…The lowest unit exposed consists of marlstone, beds around 10-cm thick, interbedded with silty shale, up to 5-cm thick. Horizontal lamination occurs in both lithological types; however, some marlstone is slightly bioturbated (Stachacz et al 2016). The thickness of this unit visible in the outcrop is about 1 m but exposures nearby suggest a total thickness of about 20 m (Racki et al 2002).…”

Section: Unit 1: Marlstone Interbedded With Silty Shalementioning

confidence: 96%

“…The Lower and Upper Kellwasser horizons are both characterized by the occurrence of black bituminous limestones, which have been well dated based on conodonts. The origin of these two horizons is connected to anoxic episodes in the Late Devonian (Racki et al 2002;Bond et al 2004;Janiszewska et al 2007;Szrek 2007a;Rakociński et al 2016;Stachacz 2016).…”

Section: Geological Settingmentioning

confidence: 99%

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High-energy events in the Frasnian–Famennian boundary interval of the Płucki section in the Holy Cross Mountains, Poland

Szrek

Salwa

2020

Facies

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Of all the Devonian stratigraphic boundaries, the Frasnian-Famennian transition (372.2 ± 1.6 Ma) preserves the record of one of the most significant crises in the history of life, the final stages of which lie buried in the distinctive Kellwasser limestone. The Kellwasser facies occur in Western and Central Europe and the commonly cited Płucki area of Poland's geologically rich Holy Cross Mountains is the only site in that region where the Frasnian-Famennian boundary is considered to occur within Kellwasser facies. At this locality, the limestone contains slump structures, comprising contorted beds and folds. Actually the Kellwasser-like limestone from Płucki is composed of a mixture of three distinct types of sediment, occurring as clasts, commonly deformed and sheared, and matrix, rather than being one homogenous bed, as previously considered. Thus, earlier studies and interpretations of this limestone may need revising. This paper documents the evidence for sediment erosion and reworking, debris flows, sliding and soft-sediment deformation on a submarine slope, and suggests that seismic events were the likely triggering mechanism for slumping and resedimentation.

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Section: Unit 1: Marlstone Interbedded With Silty Shalementioning

confidence: 96%

Section: Geological Settingmentioning

confidence: 99%

High-energy events in the Frasnian–Famennian boundary interval of the Płucki section in the Holy Cross Mountains, Poland

Szrek

Salwa

2020

Facies

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Ichnology of the Cenomanian–Turonian boundary event in the southern Tethyan margin (Khanguet Grouz section, Ouled Nail Range, Algeria)

et al. 2022

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Evaluating tracemaker recovery after the Cretaceous–Paleogene (K–Pg) boundary event: different biotic responses at the Caravaca section

Rodríguez-Tovar

2024

J Iber Geol

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Trace fossils are an aid to characterize major extinction events, enriching evolutionary paleoecology research. Ichnological analysis at the Cretaceous–Paleogene (K–Pg) marine boundary interval, worldwide, points to a relatively minor disruption in the macrobenthic tracemaker community; that is, trace-fossil assemblages do not change significantly across the K–Pg boundary, showing relatively rapid recovery, locally in just a few years post-impact. To evaluate the incidence of this event and the rapid recovery of the tracemaker community afterwards, the evolution of planktic and benthic groups at the K–Pg boundary interval was analysed in the Caravaca section (Betic Cordillera) based on the integration of available data. In general terms, planktic foraminifera and calcareous nannoplankton dropped in abundance and diversity at the K–Pg boundary, whereas benthic foraminifera did not show significant extinction, but rather a sudden and dramatic decrease in diversity and reorganization. After the K–Pg boundary event, planktic communities exhibit a prolonged delay in recovery—mainly occurring above the dark boundary layer—with respect to benthic foraminifera. The K–Pg boundary event did not induce a severe crisis for the burrowing macroinfauna, as revealed by the similarity between pre- and post-event ichnotaxa, showing a comparatively rapid first colonization phase, less than 2 ky after the event. The record of Zoophycos and Chondrites at the base of the dark boundary layer evidences an opportunistic behaviour of tracemakers and a high independence from oxygen in pore waters and food in the sediment, allowing for the colonization of an overall unfavorable environment.

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Ichnological record of the Frasnian–Famennian boundary interval: two examples from the Holy Cross Mts (Central Poland)

Cited by 12 publications

References 39 publications

High-energy events in the Frasnian–Famennian boundary interval of the Płucki section in the Holy Cross Mountains, Poland

High-energy events in the Frasnian–Famennian boundary interval of the Płucki section in the Holy Cross Mountains, Poland

Ichnology of the Cenomanian–Turonian boundary event in the southern Tethyan margin (Khanguet Grouz section, Ouled Nail Range, Algeria)

Evaluating tracemaker recovery after the Cretaceous–Paleogene (K–Pg) boundary event: different biotic responses at the Caravaca section

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