Galeacysta Etrusca Complex: Dinoflagellate Cyst Marker of Paratethyan Influxes to the Mediterranean Sea Before and After the Peak of the Messinian Salinity Crisis

Popescu, Speranta‐Maria; Dalesme, Florent; Jouannic, Gwénaël; Escarguel, Gilles; Head, Martin J.; Melinte‐Dobrinescu, Mihaela Carmen; Sütő-Szentai, Mária; Bakrač, Koraljka; Clauzon, Georges; Suc, Jean‐Pierre

doi:10.2113/gspalynol.33.2.105

Cited by 55 publications

(87 citation statements)

References 64 publications

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“…2 certainly was before 4.341±0753 MYA (middle Pliocene). This coincides in time with the existence of the Dacic Basin, a vast water body that separated the present Carpathians from the present middle Bulgaria (POPOV et al 2004, 2006, POPESCU et al 2009). The Dacic Basin, part of the Paratethys, connected with the Pannonian Basin in the west, the Euxinian Basin in the east, and directly with the present Aegean Sea in the south, eventually decreasing in size, was still present till the latest Pliocene, 1.8 MYA.…”

Section: Resultsmentioning

confidence: 61%

Radiation in <i>Bythinella</i> Moquin-Tandon, 1856 (Mollusca: Gastropoda: Rissooidea) in the Balkans

Falniowski¹,

Szarowska²,

Glöer³

et al. 2012

Folia Malacologica

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61 sequences of cytochrome oxidase subunit 1 (COI), 570 bp long, from Central Europe (8), Slovenia (2), and from the Balkans (51: 6 from, Romania, 15 from Greece, 15 from Bulgaria, 6 from Serbia, and 9 from Montenegro), 33 of them new, together with 61 sequences of the ribosomal 18S, 450 bp long, all of them new, were analysed to infer the pattern of radiation of Bythinella in the Balkans. Thirty two nominal taxa of Bythinella (22 nominal species: B. austriaca, B. calimanica, B. charpentieri, B. compressa, B. dacica, B. dispersa, B. grossui, B. hansboetersi, B. luteola, B. micherdzinskii, B. molcsanyi, B. nonveilleri, B. pannonica, B. pesterica, B. radomani, B. rhodopensis, B. robiciana, B. schmidti, B. slaveyae, B. srednogorica, B. taraensis and B. viseuiana; one nominal subspecies: B. austriaca ehrmanni; and nine Greek species not yet described) were included, represented mostly by paratypes or at least topotypes, collected at 31 Balkan localities. The phylogeny, inferred on the combined data set with the ML approach, showed two large clades, although they were weakly supported. One of them comprised the Romanian and Montenegro populations, and one Serbian population, the other (less genetically diversified) consisted of one Serbian and all the Bulgarian/Greek populations. The origin of those two clades was dated, with the external data, to be more than 4.341±0753 MYA old, thus its origin was assigned to isolation by the Dacic Basin (part of Paratethys). All the Bulgarian populations presumably belong to one species, which may be assigned to the recent recolonisation of this territory from the south.

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Section: Resultsmentioning

confidence: 61%

Radiation in <i>Bythinella</i> Moquin-Tandon, 1856 (Mollusca: Gastropoda: Rissooidea) in the Balkans

Falniowski¹,

Szarowska²,

Glöer³

et al. 2012

Folia Malacologica

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“…S. paradoxus, S. zalaensis, S. balcanicus). Ezek a nagy felü letű, szivacsos membránok általános közös fiziológiai bélyegei sok paratethysi/pannon-tavi dinoflagellatának (POPESCU et al 2007(POPESCU et al , 2009. A Pannon-tavon kívül megtalálható paratethysi membrános dinociszták (pl.…”

Section: őSkörnyezeti éRtékelésunclassified

Az Endrődi Formáció kőzettani és palinológiai vizsgálata a Hódmezővásárhely–I fúrásban (Makói-árok) — őskörnyezeti és diagenezis-történeti értékelés

Varga¹,

Baranyi

Raucsik³

et al. 2017

Földt. Közl.

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This paper presents the results of a mineralogical, petrographic and palynological study of selected Pannonian calcareous marl and sandstone samples penetrated by the Hódmezővásárhely-I (Hód-I) well, Endrőd Formation (Tótkomlós Member, cores 35 and 40, 5167.0-5183.0 m and 5468.0-5486.0 m, respectively); this formation is part of the Makó Trough of the Pannonian Basin, SE Hungary. The studied sections comprise mixed carbonate-siliciclastic rocks with abundant silt-to sand-sized angular grains such as monocrystalline and polycrystalline quartz, muscovite, biotite, chlorite, carbonate and metamorphic rock fragments. This polymictic and immature clast composition reflects the importance of local provenance, suggesting that intrabasinal structural highs represent additional source areas to the basin. Palynological analysis was carried out on selected core segments of the well in order to provide a biostratigraphic framework and palaeoenvironmental interpretation for the studied interval. In the investigated samples two biozones were distinguished: the Spiniferites bentorii oblongus Zone and the Spiniferites paradoxus Zone. The successive changes of the dinocyst assemblages reflect changes in the distance from the shoreline or the terrestrial input from the margin of the Makó Trough. The older assemblage indicates a more proximal setting in relation to the shoreline and/or a higher terrestrial input; the younger dinocyst assemblage -with a more open-water taxa point in relation to a greater distance from the shoreline -represents an increase in the water level, and/or decreased terrestrial input. The predominance of membranous dinocysts in this assemblage indicates a fluctuation in the lake surface salinity, or possibly a shift to a holoplanktonic lifestyle due to periodical oxygen depletion in the water column. The assemblages of both zones demonstrate their regional distribution throughout the whole Pannonian Basin and therefore they can be used to document regional scale trends in phytoplankton communities, as well as implying the communication of water bodies. The colour and preservation of the palynomorphs suggests significant burial heating and the high maturity of the sedimentary organic matter. In the studied samples a series of paragenetic events have been identified using petrographic methods. Early diagenesis was generally represented by cementation (i.e. of framboidal pyrite and carbonates with variable iron content) and weak mechanical compaction. On the other hand, late diagenesis involved pressure solution (chemical compaction), cementation (late pyrite) and, occasionally, dolomite replacement and mineral transformation (smectite to illite) processes. It is noteworthy that in these two core sections neither significant macroporosity nor microporosity were observed, this being due to pervasive cementation.Keywords: Pannonian, endemic, dinocysts, Spiniferites, diagenesis, paragenetic sequence ÖsszefoglalásMunkánkban a Hódmezővásárhely-I fúrás 35. és 40. magfúrási szakaszaiból (5167,0-5183,0 m, ill...

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“…The Russian pollen and spore floras of Alyoshina (1972, 1978) and Bobrov et al (1983) were also used. In situ dinocysts were identified with reference to Marret et al (2004), Mudie et al (2001), Popescu et al (2009), Sorrel et al (2006 and others. CONISS cluster analysis (Grimm, 1987) was applied to identify pollen and non-pollen zones.…”

Section: Radiocarbon Datingmentioning

confidence: 99%

Reconstructions of deltaic environments from Holocene palynological records in the Volga delta, northern Caspian Sea

et al. 2014

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New palynological and ostracod data are presented from the Holocene Volga delta, obtained from short cores and surface samples collected in the Damchik region, near Astrakhan, Russian Federation in the northern Caspian Sea. Four phases of delta deposition are recognized and constrained by accelerated mass spectrometry (AMS) radiocarbon ages. Palynological records show that erosive channels, dunes (Baer hills) and inter-dune lakes were present during the period 11,500-8900 cal. BP at the time of the Mangyshlak Caspian lowstand. The period 8900-3770 cal. BP was characterized regionally by extensive steppe vegetation, with forest present at times with warmer, more humid climates, and with halophytic and xerophytic vegetation present at times of drought. The period 3770-2080 cal. BP was a time of active delta deposition, with forest or woodland close to the delta, indicating relatively warm and humid climates and variable Caspian Sea levels. From 2080 cal. BP to the present-day, aquatic pollen is frequent in highstand intervals and herbaceous pollen and fungal hyphae frequent in lowstand intervals. Soils and incised valley sediments are associated with the regional Derbent regression and may be time-equivalent with the 'Medieval Warm Period'. Fungal spores are an indicator of erosional or aeolian processes, whereas fungal hyphae are associated with soil formation. Freshwater algae, ostracods and dinocysts indicate mainly freshwater conditions during the Holocene with minor brackish influences. Dinocysts present include Spiniferites cruciformis, Caspidinium rugosum, Impagidinium caspienense and Pterocysta cruciformis, the latter a new record for the Caspian Sea. The Holocene Volga delta is a partial analogue for the much larger oil and gas bearing Mio-Pliocene palaeo-Volga delta.

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Galeacysta Etrusca Complex: Dinoflagellate Cyst Marker of Paratethyan Influxes to the Mediterranean Sea Before and After the Peak of the Messinian Salinity Crisis

Cited by 55 publications

References 64 publications

Radiation in <i>Bythinella</i> Moquin-Tandon, 1856 (Mollusca: Gastropoda: Rissooidea) in the Balkans

Radiation in <i>Bythinella</i> Moquin-Tandon, 1856 (Mollusca: Gastropoda: Rissooidea) in the Balkans

Az Endrődi Formáció kőzettani és palinológiai vizsgálata a Hódmezővásárhely–I fúrásban (Makói-árok) — őskörnyezeti és diagenezis-történeti értékelés

Reconstructions of deltaic environments from Holocene palynological records in the Volga delta, northern Caspian Sea

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