The Upper Triassic crenogenic limestones in Upper Silesia (southern Poland) and their paleoenvironmental context

Szulc, Joachim; Gradziński, Michał; Lewandowska, Anna; Heunisch, Carmen

doi:10.1130/2006.2416(09)

Cited by 34 publications

(94 citation statements)

References 17 publications

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“…This lithostratigraphic position of the Poręba exposures is essentially equivalent to 127 that of mid-upper Middle Keuper strata detected in the Niwki and Poręba boreholes, both located 128 close to the fossil-bearing site (Szulc et al, 2006). 129…”

Section: Upper Keuper Formations (Middle-upper Stubensandstein-steinmmentioning

confidence: 91%

“…Norian (see Szulc et al 2006) or Rhaetian -sensu polonico" (see Franz et al, 2007a, b;Franz, 190 2008 Poland, representing up to 15 taxa (Niedźwiedzki, 2015). Most of the vertebrates occur in the grey 201 carbonate mudstones and siltstones in the middle part and at the top of the exposed section (Fig.…”

Section: Upper Keuper Formations (Middle-upper Stubensandstein-steinmmentioning

confidence: 99%

“…This part of the basin is still poorly understood and 107 contains floristic and faunal elements unknown from other areas of the Germanic Basin (e.g. Dzik 108 and see Szulc et al, 2006). The Zbąszynek beds exposed at Poręba contain conglomerates (with rare 120 magmatic rocks and quartzitic pebbles), grey to yellowish sandstones, grey to greenish mudstone 121 and siltstone, ‗bone-breccia' horizons (horizons termed as the ‗Lisów Breccia' by geologists) and 122 horizons with carbonaceous nodules (probably pedogenic in origin), as well as pyrite nests (Fig.…”

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confidence: 99%

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Coprolites of Late Triassic carnivorous vertebrates from Poland: An integrative approach

Zatoń

Niedźwiedzki

Marynowski

et al. 2015

Palaeogeography, Palaeoclimatology, Palaeoecology

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Vertebrate coprolites derived from the Upper Triassic terrestrial deposits of southern Poland have been subjected for various analytical methods in order to retrieve the information about their composition, potential producer's diet and nature of the preserved microbial structures. Morphologically, they have been classified to four morphotypes, of which only three were further analysed due to their good state of preservation. Their groundmass occurred to be composed by francolite, a carbonate-rich apatite, in which abundant coccoid structures are preserved. Based on various microscopic and organic geochemical techniques, they are interpreted as fossilized bacteria which could have mediated the phosphatization of the faeces. The thin sectioning revealed that the coprolites consist of those containing exclusively bone remains, and those preserving both bone and plant remains. Those coprolites preserving only vertebrate remains are suggestive for exclusive carnivorous diet of the producers. However, the interpretation of coprolites consisting of both vertebrate and plant remains is more debatable. Although they may attest for omnivory, it is not excluded that potential producers were carnivorous which occasionally ingested plants, or accidentally swallowed plant material during feeding. The latter may involve predation or scavenging upon other herbivorous animals which used to fed on plants. It is not excluded that the potential producers may have been animals that foraged in or near aquatic habitats, such as semi-aquatic archosaurs and/or temnospondyls, what is supported by the presence of ostracode remain and fish scales within the coprolites, as well as by the presence of such specific biomarkers as phytanic and pristanic acids, which are characteristic constituents of fish oil. The preservation of such labile organic compounds as sterols, palmitin, stearin or levoglucosan attests for mineralization of the faeces on very early stages of diagenesis. The article concerns the study of coprolites derived from the Upper Triassic, bonebearing deposits of southern Poland. For the first time we used integrative approach combining various analytical methods (transmission-light microscopy, scanning electron microscopy, transmission electron microscopy, scanning transmission x-ray microscopy, Xray absorption near edge structure, electron microprobe analysis, XRD, inorganic and organic geochemistry, palynology) in order to decipher various problems concerning the coprolites, including the coprolite composition, the producers' diet, the nature of the coprolite groundmass and microbial consortia preserved. Thus, to our knowledge, this paper is the first of such a kind ever published and may be a reference article to other research concerning paleobiology of coprolites. As recently the journal published several papers concerning coprolites and related papers, we think that the submitted article fits well the journal scope and would also be often cited in the future. Therefore, we hope the paper will be considered for...

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Section: Upper Keuper Formations (Middle-upper Stubensandstein-steinmmentioning

confidence: 91%

Section: Upper Keuper Formations (Middle-upper Stubensandstein-steinmmentioning

confidence: 99%

mentioning

confidence: 99%

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Coprolites of Late Triassic carnivorous vertebrates from Poland: An integrative approach

Zatoń

Niedźwiedzki

Marynowski

et al. 2015

Palaeogeography, Palaeoclimatology, Palaeoecology

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“…2). Polish Triassic sedimentary basin is part of the Germanic Basin (Mader, 1997;Franz, 2009), however its marginal position, and marked local facies variability make stratigraphical correlations difficult (Szulc et al, 2006;Racki, 2010;Pacyna, 2014). A new framework was recently proposed by Szulc and Racki (2015).…”

Section: Geological and Palaeoxylological Settingmentioning

confidence: 98%

“…Based on palynological data, wood source strata were referred to the local Polish Corollina meyerana palynozone (Orłowska-Zwolińska, 1983, 1985 which is correlated with Middle Europe Granuloperculatipollis rudis zone (Cirilli, 2010;Kürschner and Herngreen, 2010). Investigated localities provided rich invertebrate and vertebrate tracks and skeletal remains (Szulc et al, 2006;Dzik et al, 2008;Budziszewska-Karwowska et al, 2010;Racki, 2010;Skawina and Dzik, 2011;Sulej et al, 2012;Sadlok and Wawrzyniak, 2013).…”

Section: Geological and Palaeoxylological Settingmentioning

confidence: 99%

News from an old wood — Agathoxylon keuperianum (Unger) nov. comb. in the Keuper of Poland and France

Philippe

Pacyna

Wawrzyniak

et al. 2015

Review of Palaeobotany and Palynology

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Widespread freshwater carbonate in the Olduvai Basin, a precursor to a major eruption in the East African Rift System

Ashley

Wet

Houser

et al. 2020

The Depositional Record

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Freshwater limestones are uncommon in the sedimentary record of the East African Rift System. Recent research in the Olduvai Basin, Tanzania has revealed an extensive carbonate unit ca 1.8 Ma in age that varies spatially in thickness, petrography, trace element and rare earth geochemistry, C and O isotope values and freshwater microfossils. Five distinct lithologies are recognized. Four reflect deposition in carbonate‐rich environments that occurred at the same time in a catena‐like pattern over a heterogeneous landscape: spring, wetland, freshwater lake/pond and saline playa lake. The fifth is carbonate nodular soil that formed by paedogenesis on areas of topographically higher terrane. The δ18O of the carbonate, as negative as −6.5‰, indicates that the groundwater is meteoritic derived. The origin of the carbonate comprising this thick, extensive, isochronostratigraphic deposit has not been determined, but it is believed that carbonatite volcanism may have supplied elevated levels of carbonate to the basin which then entered the groundwater system. The carbonate was deposited just prior to a major trachyte‐phonolite eruption of Mount Olmoti, and the deposition of a basin wide tuff, Tuff IF. The region is seismically active today and seismic events were likely associated with Olmoti volcanism. The widespread carbonate unit may have preceded the Olmoti eruption and formed from a recurring seismically induced increase in aquifer porosity and permeability. The carbonate‐enriched groundwater episodically discharged onto the land surface, interacting locally with both fresh and saline ponded water.

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The Upper Triassic crenogenic limestones in Upper Silesia (southern Poland) and their paleoenvironmental context

Cited by 34 publications

References 17 publications

Coprolites of Late Triassic carnivorous vertebrates from Poland: An integrative approach

Coprolites of Late Triassic carnivorous vertebrates from Poland: An integrative approach

News from an old wood — Agathoxylon keuperianum (Unger) nov. comb. in the Keuper of Poland and France

Widespread freshwater carbonate in the Olduvai Basin, a precursor to a major eruption in the East African Rift System

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