Mosaic of environments recorded by bryozoan faunas from the Middle Miocene of Hungary

Moissette, Pierre; Dulai, Alfréd; Escarguel, Gilles; Kázmér, Miklós; Müller, Pál; Martin, J.P. Saint

doi:10.1016/j.palaeo.2007.05.010

Cited by 39 publications

(27 citation statements)

References 58 publications

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“…2): initial Late Badenian transgression and establishment of shallow marine environments, start of regression and environmental stress in the uppermost Late Badenian and final regression and emersion at the Badenian/Sarmatian boundary. During wet periods marginal shelf deposits of the Paratethys are characterized by coarse clastics, while the carbonate-siliciclastic complexes are known only in some intervals which were dry (Moissette et al 2007;Holcová et al 2015). Marginal facies are present at the Borovnjak locality and they are assigned to the Ammonia beccarii ecozone.…”

Section: Discussionmentioning

confidence: 99%

Shallow-water benthic foraminiferal assemblages and their response to the palaeoenvironmental changes — example from the Middle Miocene of Medvednica Mt. (Croatia, Central Paratethys)

Pezelj¹,

Sremac²,

Bermanec³

2016

Geologica Carpathica

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During the Middle Miocene, the northern Croatian Medvednica Mt. was an island within the Pannonian Basin System, situated on the SW margin of the Central Paratethys Sea. Miocene sedimentary rocks (the Late Badenian Bulimina-Bolivina Zone and Ammonia beccarii ecozone), from the SW slopes of Medvednica Mt. clearly reflect a transgressive-regressive cycle with emersion during the Badenian/Sarmatian boundary. After the initial phase of transgression, the pioneer Elphidium-Asterigerinata-Ammonia benthic foraminiferal assemblage is present in bioclastic limestones, such as those at the Borovnjak locality. This marginal marine assemblage from a highly energetic, normally saline environment is characterized by poor preservation of foraminiferal tests, low diversity and strong domination. Advanced transgression is followed by establishment of the Elphidium-Asterigerinata assemblage, which is found in biocalcsiltites from the laterally deeper and more sheltered environment at Gornje Vrapče. This diverse assemblage is typical for inner/middle shelf environment with sufficient oxygen content. A general shallowing upward trend can be recognized at both localities, followed by visible interchange of different sedimentological and biotic features. Successive and oscillatory regression in the marginal marine environment was followed by salinity fluctuations and final brackish conditions with Ammonia-Elphidium assemblage. The laterally deeper environment reacted to regressive trends on finer scale with almost regular changes of benthic foraminiferal assemblages in the laminae (Heterolepa-Bolivina assemblage/Bolivina-Cassidulina assemblage/Elphidium-Asterigerinata assemblage). It might reflect sea-level oscillations with periodically increased siliciclastic and nutrient input from land or influence of seasonality on benthic assemblages, which occurred in the advanced phase of the regression near the Badenian/Sarmatian boundary.

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Section: Discussionmentioning

confidence: 99%

Shallow-water benthic foraminiferal assemblages and their response to the palaeoenvironmental changes — example from the Middle Miocene of Medvednica Mt. (Croatia, Central Paratethys)

Pezelj¹,

Sremac²,

Bermanec³

2016

Geologica Carpathica

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“…Th e generic attribution of the species polonica to Discradisca was discussed in detail by Dulai (2013) and Bitner & Cahuzac (2013). D. polonica seems to be restricted to shallow water environments: it was described from the littoral deposits of the Korytnica Basin (Radwańska & Radwański 1984), and both Hungarian localities also refer to shallow habitats in the palaeoenvironmental reconstructions (e.g., Moissette et al 2007;Selmeczi 1996). Th e shape variability and irregularity was interpreted by Radwańska & Radwański (1984) as adaptation to the high-energy environment of the shore zone.…”

Section: Methodsmentioning

confidence: 99%

“…Bryozoa fauna of the sand was investigated by Moissette et al (2006Moissette et al ( , 2007, and on the basis of 15 species they interpreted the locality as representing the sediments deposited in a shallow-water environment on a terrigenous platform. Th e sands correspond to a beach environment where skeletal remains from various depth intervals accumulated (Moissette et al 2007). Although these layers are very fossiliferous, until recently brachiopods were not recorded from this locality.…”

Section: Geological Settingsmentioning

confidence: 99%

First record of Discinidae brachiopods from the Miocene of Hungary

Dulai¹

2017

Fragm Palaeont Hung

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-Although Discinidae brachiopods are rare components of Neogene benthic assemblages, several records were published from the Miocene of the Central Paratethys (Poland, Ukraine, Czech Republic, Austria, and Bulgaria). However, until now discinid brachiopods have never been mentioned from Hungary. Recently, remains of one species, Discradisca cf. polonica (Radwańska et Radwański, 1984) were found at two Middle Miocene (Badenian) localities of the Bakony Mts. Two fragments were discovered in old washed samples (Pusztamiske Formation) from the Szabó sand pit of Várpalota in the collection of the Hungarian Natural History Museum, Budapest. Th e same species is much more numerous in a new material collected at Nyirád locality. Here hundreds of very eroded and fragmentary discinids were found in the Pusztamiske Formation, while the overlying Leitha Limestone Formation contains less, but sometimes more or less complete specimens. D. polonica seems to be restricted to shallow water environments. Th e Hungarian record is one of the most southern known occurrences of discinid brachiopods in the Central Paratethys (together with the very limited Bulgarian material). With 22 fi gures.

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“…A "lajtamészkő" ősmarad -ványokban rendszerint igen gazdag: gyakoriak a vörös -algák, foraminiferák, rákok, kagylók, csigák, moha állatok, tengeri sünök (HÁMOR 2001, GYALOG & BUDAI szerk. 2004, MOISSETTE et al 2007. A badeni klímaromlás (BÖHME ami csak a Paratethys késő-badeni korú üledékeiből ismert.…”

Section: Földtani Háttérunclassified

A Brissus genus (Echinoidea) első előfordulása a magyarországi badeniből és a Brissus mihalyi n. sp. leírása

Polonkai¹,

Kroh

Görög

et al. 2017

Földt. Közl.

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A budapesti Örs vezér téri üzletközpontok alapozása során nagy számban fordultak elő tengeri sünök is a badeni korú Lajtai Mészkő Formáció rétegeiben. Az Árkád 1 alapgödréből előkerült egy Magyarországról eddig nem ismert tengeri sün nemzetség, a Brissus. A genust eddig a Paratethys térségéből csak burgenlandi és nyugat-ukrajnai lelőhelyekről írták le. A Budapesten megtalált mindkét Brissus egyed jó megtartású. Az egyik példányt a Brissus abeli (Reidl, 1941) fajba lehetett besorolni, ami csak a Paratethys késő-badeni korú üledékeiből ismert. Ezen felül előkerült egy az egész európai-mediterrán térségben eddig ismeretlen Brissus forma, amely morfológiai bélyegeit tekintve egyik európai vagy egyéb mediterrán formával sem egyezik meg. Emellett hordoz sajátságos morfológiai elemeket is, úgy, mint az erősen anterior helyzetű apicalis lemez, az anterior szirompár által bezárt szög mértéke, valamint a periproct elhelyezkedése. Mindezek alapján a forma új fajként való elkülönítése indokolt, melynek neve – Mihály Sándor tiszteletére – Brissus mihalyi nov. sp. Maga a Brissus genus ma széles földrajzi elterjedésű, de kis egyedszámú; a ma élő együtteseket részletesen nem vizsgálták. Az európai neogénben ritka, így a magyarországi megjelenés a forma eocéntől máig zajló evolúciójának megismeréséhez is fontos információt nyújt.

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Mosaic of environments recorded by bryozoan faunas from the Middle Miocene of Hungary

Cited by 39 publications

References 58 publications

Shallow-water benthic foraminiferal assemblages and their response to the palaeoenvironmental changes — example from the Middle Miocene of Medvednica Mt. (Croatia, Central Paratethys)

Shallow-water benthic foraminiferal assemblages and their response to the palaeoenvironmental changes — example from the Middle Miocene of Medvednica Mt. (Croatia, Central Paratethys)

First record of Discinidae brachiopods from the Miocene of Hungary

A Brissus genus (Echinoidea) első előfordulása a magyarországi badeniből és a Brissus mihalyi n. sp. leírása

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