Detailed lithostratigraphy of the Ordovician lower Volkhovian limestone along the eastern part of the Baltic‐Ladoga Glint, northwestern Russia

Dronov, A. V.; Savitsky, Juriy V.; Fedorov, Petr V.; Tsyganova, Elena A.

doi:10.1080/11035899609546226

Cited by 17 publications

(18 citation statements)

References 2 publications

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“…It is one of the best-documented successions in Baltoscandia. The detailed lithostratigraphy of the carbonates, as well as various palaeontological studies from this interval are reported in numerous papers (Dronov et al 1996(Dronov et al , 2000Egerquist, 1999;Melnikova, 1999). A first attempt at providing a sequence stratigraphic framework for this part of the region was recently proposed by Dronov & Holmer (1999), and the Volkhov Stage has been considered to represent a depositional third order 'Volkhov' sequence.…”

Section: Geological Backgroundmentioning

confidence: 98%

Faunal composition and dynamics in unconsolidated sediments: a case study from the Middle Ordovician of the East Baltic

et al. 2003

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The Volkhov Regional Stage (Middle Ordovician) in the East Baltic preserves diverse fossil assemblages dominated by epibenthic suspension feeders. Brachiopods, ostracodes, conodonts, echinoderms and bryozoans are the main components of palaeocommunities obtained from clay horizons in the Putilovo section (St Petersburg region, Russia), whereas trilobites, machaeridians, hyolithids, graptolites, benthic foraminifers and gastropods are rare or occur sporadically. Brachiopod bioclasts volumetrically dominate the debris of the studied sediments. Quantitative faunal data are used to assess species diversity patterns, as expressed by the species richness (total number of species in the standardized sample size) and by the evenness or equitability of the community. The numerical abundance of particular taxa in each standardized sample was used to evaluate the density of the fauna. The communities in the Volkhov Stage in Putilovo Quarry reveal a remarkable stability throughout the studied interval and are characterized by high density (1000–6000 specimens per 100 g), relatively moderate species richness (10–15 species) and a moderately variable equitability (0.3–0.7) for the dominant fossil groups (conodonts, ostracodes and brachiopods). Ostracodes significantly increase in numbers within the upper part of the section. This confirms a shallowing of the basin during the late Volkhov interval. Small-scale variability of the diversity estimates does not correlate with the small-scale sea-level changes reconstructed for this part of the basin. It may be connected with error in diversity measurement, or the result of undetected environmental parameters. Variability estimates for different faunal groups are poorly correlated because particular groups have different environmental tolerances.

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Section: Geological Backgroundmentioning

confidence: 98%

Faunal composition and dynamics in unconsolidated sediments: a case study from the Middle Ordovician of the East Baltic

et al. 2003

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“…Therefore, lower Ordovician borings should not be surprising. In fact, lower Ordovician borings have already been reported from Utah (Dattilo 1993;Benner & Ekdale 1999) as well as Sweden (Lindström 1963;Ekdale & Bromley 1995, 1996 and Russia (Dronov et al 1996).…”

Section: Borings Versus Burrowsmentioning

confidence: 94%

“…Lower Ordovician macroborings have been reported brie y in hardgrounds in southern Sweden (Andersson 1896;Jaanusson 1961;Lindström 1963Lindström , 1979, Russia (Hecker 1960;Dronov et al 1996), Estonia (Orviku 1940(Orviku , 1960 and western Utah (Dattilo 1993), but details of their morphology and occurrences have not been described in detail. The lower Ordovician trace fossils from Sweden that were studied for this paper appear to be true borings, because they can be seen to cut cleanly through bioclasts and lithi ed limestone.…”

Section: Early History Of Hardground Bioerosionmentioning

confidence: 99%

“…By middle and late Ordovician time, bioerosion of carbonate hardgrounds became more common, and macroborings are widespread (Carriker & Yochelson 1968;Richards & Shabica 1969;Kapp 1975;Palmer & Palmer 1977;Brett & Liddell 1978;Byers & Stasko 1978;Kobluk et al 1978;Elias 1980Elias , 1986Kobluk & Nemcsok 1982;Palmer 1982;Brett & Brook eld 1984;Pickerill et al 1984;Wilson & Palmer 1988, 1990Fillion et al 1990;Dronov et al 1996). Most of these borings are referred to the ichnogenus Trypanites and are quite different in size and shape from the lower Ordovician macroborings considered here.…”

Section: Early History Of Hardground Bioerosionmentioning

confidence: 99%

“…During the Arenig Series of the Ordovician, a sea level highstand on the Baltic Shield allowed deposition of broad expanses of marine carbonates (Männil 1966a;Lindström 1971a;Jaanusson 1973). This epicratonic sea covered more than one-half million square kilometers from the Oslo Graben in Norway (Owen et al 1990;Rasmussen 1991) across southern Sweden (Lindström 1963(Lindström , 1971a(Lindström , 1979 and the Danish island of Bornholm (Poulsen 1966;Nielsen 1995) to the Baltic countries and western Russia (Männil 1966a(Männil , 1990Männil & Meidla 1994;Dronov et al 1996).…”

Section: Geologic Settingmentioning

confidence: 99%

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Bioerosional innovation for living in carbonate hardgrounds in the Early Ordovician of Sweden

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Some of the world's oldest macroborings occur in hardgrounds in lower Ordovician (Arenig) limestones exposed on the island of Ö land, southern Sweden. The trace fossils, which are described here as Gastrochaenolites oelandicus isp. nov., appear to be dwelling structures excavated in the indurated substrate by invertebrates of unknown taxonomic af nity. They are the oldest examples of this ichnogenus. The appearance of a macroboring life habit at this early time represents a revolutionary new adaptive strategy for inhabiting carbonate hardgrounds. However, this innovative strategy apparently was not successful for the long term, because this particular macroboring taxon seems to have disappeared shortly after its early Ordovician appearance. &Boring, Gastrochaenolites, hardground, Ordovician, Sweden, trace fossil. A.A. Ekdale [ekdale@mines.utah.edu],

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The oldest bryozoans of Baltoscandia from the lowermost Floian (Ordovician) of north-western Russia: two new rare, small and simple species of Revalotrypidae

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2017

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Detailed lithostratigraphy of the Ordovician lower Volkhovian limestone along the eastern part of the Baltic‐Ladoga Glint, northwestern Russia

Cited by 17 publications

References 2 publications

Faunal composition and dynamics in unconsolidated sediments: a case study from the Middle Ordovician of the East Baltic

Faunal composition and dynamics in unconsolidated sediments: a case study from the Middle Ordovician of the East Baltic

Bioerosional innovation for living in carbonate hardgrounds in the Early Ordovician of Sweden

The oldest bryozoans of Baltoscandia from the lowermost Floian (Ordovician) of north-western Russia: two new rare, small and simple species of Revalotrypidae

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