A middle Cambrian (Series 3, Stage 5) microfaunal assemblage from the Torgau-Doberlug Syncline (Central Germany) and its palaeogeographic implications for the configuration of West Gondwana

Atnisha, Abubaker

doi:10.1515/agp-2018-0005

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Tytuł artykułu

A middle Cambrian (Series 3, Stage 5) microfaunal assemblage from the Torgau-Doberlug Syncline (Central Germany) and its palaeogeographic implications for the configuration of West Gondwana

Autorzy

Atnisha Abubaker

Treść / Zawartość

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Identyfikatory

DOI

10.1515/agp-2018-0005

Warianty tytułu

Języki publikacji

Abstrakty

A microfauna of small shelly fossils (SSF) is reported here for the first time from middle Cambrian (Series 3, Stage 5) subsurface strata of the Torgau-Doberlug Syncline (TDS), Central Germany. Considering that this microfauna is strongly limited and poorly preserved the material is quite abundant and diverse. The assemblage consists of molluscs (pelagiellids, bivalves), coeloscleritophorans (chancelloriids, halkieriids), poriferids, protoconodonts, cambroclaves, hyoliths, brachiopods, and disarticulated echinoderm remains. Additionally, a probable pterobranch hemichordate is noted. The assemblage is dominated by epifaunal suspension feeders from mid- to outer shelf depositional settings. Stratigraphically it represents (together with rare trilobites) the oldest middle Cambrian (Series 3, Stage 5) fauna known from Central Germany and the entire Saxothuringian Zone. Regardless the taphonomic problems related to the SSF occurrence, close palaeobiogeographic relations are indicated with the Mediterranean shelf of West Gondwana (especially with the areas of southwestern Europe and Morocco). The reported microfauna coupled with recent trilobite and palynomorph research supports assumptions that the Cambrian succession in the TDS is by far more complete than hitherto suggested, emphasizing its importance as a region yielding Cambrian rocks in Central Europe.

Słowa kluczowe

small shelly fossils Cambrian Torgau-Doberlug Syncline Germany West Gondwana

drobna fauna skorupkowa małe skamieniałości skorupkowe kambr Torgau-Doberlug Syncline Niemcy Gondwana

Wydawca

Faculty of Geology of the University of Warsaw
Komitet Nauk Geologicznych PAN

Czasopismo

Acta Geologica Polonica

Rocznik

2019

Tom

Vol. 69, no. 1

Strony

1--25

Opis fizyczny

Bibliogr. 236 poz., rys., tab.

Twórcy

autor

Atnisha Abubaker

aatnisha1977@gmail.com

TU Bergakademie Freiberg, Geological Institute, Department of Palaeontology, Bernhard-Von-Cotta 2, Freiberg, D-09599, Germany.

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Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).

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