Articles

PRAGIAN-EMSIAN BRACHIOPODS FROM THE RHENISH MASSIF (GERMANY): NEW DATA ON EVOLUTION AND BIOSTRATIGRAPHY

ULRICH JANSEN

Abstract


The succession of Pragian to Emsian (Early Devonian) brachiopod faunas from the Rhenish Massif (Germany) is briefly reviewed and interpreted with reference to a changing palaeoenvironment. A series of bioevents caused partial extinction or emigration of brachiopod species and succeeding immigration and dispersal of new species and speciation. The interplay of sea-level fluctuations, subsidence history and siliciclastic input from the Old Red Continent triggered the specific suitability of potential brachiopod habitats on the Rhenish Shelf. Three new taxa are proposed: Fascistropheodonta? wiltzensis n. sp., Ingentistrophia gen. n. and Pachyschizophoria amygdalina n. sp.


Keywords

Lower Devonian; palaeontology; biodiversity; palaeoenvironment; Strophomenida; Orthotetida; Orthida.

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DOI: https://doi.org/10.13130/2039-4942/12194

NBN: http://nbn.depositolegale.it/urn%3Anbn%3Ait%3Aunimi-25434

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