Zechstein in Lithuanian–Latvian Border Region

Raczyński, Paweł; Biernacka, Julita

doi:10.6001/geologija.v56i2.2949

Cited by 5 publications

(8 citation statements)

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“…More over, Lith u a nia's coastal zone was much wider than those of the south ern parts of the ba sin (e.g., in SW Po land) as a re sult of pro longed ero sion of the plat form, and low top ographic re lief across a large ter ri tory (Raczyński and Biernacka, 2014). This pos si bly re duced cir cu la tion, which could have resulted in re stricted high-tem per a ture and low-ox y gen con ditions, which also did not fa vour con di tions for ver te brates.…”

Section: Discussionmentioning

confidence: 99%

“…Lith u a nia is lo cated in the north east ern part of the Zechstein Ba sin (Kadunas and Raczyński, 2010;Raczyński and Biernacka, 2014) and was lo cated some dis tance away from the main con nec tion be tween the Arc tic Bo real Ocean and the low lat i tude Zechstein Ba sin dur ing the Late Perm ian (SÝrensen et al, 2007;Peryt et al, 2010).…”

Section: Geological Settingmentioning

confidence: 99%

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The first microfossil record of ichthyofauna from the Naujoji Akmene Formation (Lopingian), Karpenai Quarry, northern Lithuania

Dankina

CHAHUD²,

Radzevičius

et al. 2017

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Section: Discussionmentioning

confidence: 99%

Section: Geological Settingmentioning

confidence: 99%

The first microfossil record of ichthyofauna from the Naujoji Akmene Formation (Lopingian), Karpenai Quarry, northern Lithuania

Dankina

CHAHUD²,

Radzevičius

et al. 2017

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“…The Naujoji Akmenė Formation is exposed in the south Latvia (Raczyński and Biernacka 2014). This Formation is represented here by five members: Auce, Sātiņi, Kūmas, Alši, and Pampāļi (Kuršs and Savvaitova 1986;Gailīte et al 2000;Lukševičs et al 2012).…”

Section: Geological Settingsmentioning

confidence: 99%

“…1 a Palaeogeography of the European Zechstein Basin (modified after Becker and Bechstädt 2006). b Geographical position of the Kūmas and Karpėnai quarries (modified afterRaczyński and Biernacka 2014)…”

mentioning

confidence: 99%

A late Permian ichthyofauna from the Zechstein Basin, Lithuanian–Latvian Region

et al. 2020

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The late Permian was a transformative time, which ended with one of the most significant extinction events in Earth's history. Fish assemblages are a major component of marine food webs. The macroevolution and biogeographic patterns of late Permian fish are currently insufficiently known. In this contribution, a late Permian ichthyofauna from the Kūmas quarry (southern Latvia) is described for the first time. The studied late Permian Latvian assemblage consisted of isolated chondrichthyan teeth putatively associated to ? Helodus sp., ?Acrodus sp., ? Omanoselache sp. and euselachian-type dermal denticles as well as many actinopterygian scales, numerous teeth and multiple unidentifiable microremains. This ichthyofaunal assemblage is very similar to the contemporaneous Lopingian complex of the Naujoji Akmenė formation from the Karpėnai quarry (northern Lithuania), despite the fact that the Kūmas assemblage is more diverse and abundant, in terms of fossil remains. The differences in the abundance of microremains could possibly be explained by a fresh water influx into the north-eastern Zechstein Basin margin, which probably reduced the salinity of the sea water. The new data enable a better understanding of the poorly known late Permian fish diversity from the north-eastern part of the basin. Keywords Microremains • Chondrichthyans • Actinopterygians • Histology • Permian • Baltic ResumenEl Pérmico superior fue un periodo transformador, que terminó con una de las extinciones más masivas de la historia de la Tierra. Los peces son un componente importante de las redes tróficas marinas. Los patrones macroevolutivos y biogeográficos de los peces del Pérmico superior han sido escasamente estudiados. En este trabajo describimos por primera vez la ictiofauna de la cantera de Kūmas (sur de Letonia). La asociación estudiada consiste en dientes de condrictios aislados asociados a ?Helodus sp., ? Acrodus sp., ? Omanoselache sp.; escamas de tipo Euselachii y de actinopterigios; numerosos dientes y otros microrestos no identificables. La asociación de ictiofauna descrita es muy similar a la actual del complejo

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“…The current study represents the first record of a fish assemblage from Sātiņi, Kūmas, and Alši Formations in Kūmas quarry, southern Latvia – the north-easternmost part of the Zechstein Basin, never before studied on the palaeoichthyofaunal grounds. The isolated remains of Palaeoniscidae, Platysomidae, Haplolepidae, Elonichthydae and Euselachii, Helodontidae, Acrodontidae were revealed from the carbonate deposits of Zechstein Limestone (Ca1) formed by the first cycle Werra (Z1) [27–28].…”

Section: Introductionmentioning

confidence: 99%