Early Devonian Ostracodes of Thuringian Ecotype from NW Anatolia (Turkey)

Dojen, Claudia; Özgül, Necdet; Göngüoglu, Yakut; Göngüoglu, Cernal M.

doi:10.1127/njgpm/2004/2004/733

Cited by 11 publications

(6 citation statements)

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“…Sayar and Schallreuter (1989) collected Upper Caradocian-Asgillian ostracodes from this section and pointed out that they exhibited a faunal affinity with the Baltic region. Early Devonian ostracodes from the İstanbul area belong to the Thuringian ecotype and thus indicate affinity to the Gondwanian regions of the European Hercynides (Dojen et al 2004). This has long been known by the identification of the İstanbul Palaeozoic fauna as being of 'Rhenic' type.…”

Section: The İstanbul Zonementioning

confidence: 99%

The phanerozoic palaeotectonics of Turkey. Part I: an inventory

Şengör¹,

Lom

Sunal³

et al. 2019

Med. Geosc. Rev.

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Section: The İstanbul Zonementioning

confidence: 99%

The phanerozoic palaeotectonics of Turkey. Part I: an inventory

Şengör¹,

Lom

Sunal³

et al. 2019

Med. Geosc. Rev.

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“…), Spain (Emsian: Becker & Sánchez de Posada ; Becker ), southern France (Feist & Groos‐Uffenorde ), Turkey (Pontides) (Emsian: Dojen et al . ; Olempska et al . ) and Japan (Emsian: Kuwano ).…”

Section: The Thuringian Ecotype and The Palaeopsychrospherementioning

confidence: 99%

“…The recent study of Late Devonian ostracod palaeobiogeography by Song & Gong (2017) (Feist & Groos-Uffenorde 1979), Turkey (Pontides) (Emsian: Dojen et al 2004;Olempska et al 2015) and Japan (Emsian: Kuwano 1987). We have also plotted on Figure 3 the USA (Ohio) Silica Formation ostracod assemblage (Givetian: Kesling & Chilman 1978) because although not a TMA it contains taxa with possible TMA affinities (discussed further below).…”

mentioning

confidence: 99%

The palaeopsychrosphere in the Devonian

Crasquin

Horne

2018

LET

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The interpretation of Palaeozoic marine benthonic ostracods of the Thuringian ‘Ecotype’ or ‘Mega‐assemblage’ as indicative of a palaeopsychrosphere has been controversial. We review the evidence and conclude that the characteristics and distribution of these ostracods are consistent with the existence of deep, cold, well‐oxygenated water masses, formed by high‐latitude sinking of surface waters, in the Devonian oceans, comparable with those of the modern ocean that constitute the psychrosphere (waters below the thermocline with temperature <10°C). We present a new palaeoceanographic model for the Frasnian–Famennian (Late Devonian) Kellwasser events that resulted in the extinction of 75% of marine ostracod taxa, mostly neritic or pelagic forms, while the deep water Thuringian Mega‐assemblage was relatively unaffected. We offer an explanation for the unlikely preservation of examples of such a deep water (bathyal to abyssal) ostracod fauna that involves upwelling of deep cold waters on continental margins.

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“…Göncüoğlu, 2010). The differences in lithostratigraphy, structural and metamorphic features and palaeobiogeography of these terranes was discussed in earlier studies in considerable detail (Göncüoğlu & Kozur, 1998; Göncüoğlu & Kozlu, 2000; Kozur & Göncüoğlu, 2000; Dojen et al 2004; Yanev et al 2006; Bozkaya, Yalçin & Göncüoğlu, 2012 a, b ; Sachanski et al 2012; Okuyucu, Vachard & Göncüoğlu, 2013). In contrast to the detailed evaluation of the Ordovician – lower Carboniferous marine deposition in the IT and ZT, our knowledge of the stratigraphy, ages and depositional environment of the Permian – Lower Triassic overstep sequences are very scarce.…”

Section: Introductionmentioning

confidence: 96%

Late Permian (Tatarian) fluvio-lacustrine successions in NW Anatolia (Zonguldak Terrane, Turkey): palaeogeographic implications

et al. 2016

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Late Permian fluvio-lacustrine successions of the Çakraz Formation in the Zonguldak Terrane between the regions of Akçakoca and Ereğli were investigated in order to describe the litho- and biostratigraphic properties and explain the depositional environment. The studied succession with black, dark-grey to greenish-grey shales, siltstones and limestones is named the Alaplı Member to distinguish it from the classical red clastic successions, which are tentatively named the Ereğli Member of the Çakraz Formation. The organic-rich black shales, mudstones and limestones of the Alaplı Member yielded palynological assemblages suggesting a Lopingian (Tatarian) age. The lack of any marine macro- or microfossils, the fine-grained character of the lithofacies with abundant plant material and the association of poorly sorted conglomerates in the middle part of the succession indicate possible deposition in a broad range of fluvial and lacustrine environments. Successions of similar age and depositional environment are known from the East European Variscan Belt in Bulgaria and Romania. Common successions were also developed in actively extending shallow-marine platforms on the NW Palaeotethyan margin at the end of the Permian Period.

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Early Devonian Ostracodes of Thuringian Ecotype from NW Anatolia (Turkey)

Cited by 11 publications

References 0 publications

The phanerozoic palaeotectonics of Turkey. Part I: an inventory

The phanerozoic palaeotectonics of Turkey. Part I: an inventory

The palaeopsychrosphere in the Devonian

Late Permian (Tatarian) fluvio-lacustrine successions in NW Anatolia (Zonguldak Terrane, Turkey): palaeogeographic implications

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