Lagoonal to normal marine Late Silurian Early Devonian ostracode assemblages of the Eurasian Arctic

Anna F. Abushik, Irina O. Evdokimova


In the Eurasian Arctic the ostracode faunas indicate mostly normal marine environments during the Late Silurian. The Lower Devonian deposits are characterized by ostracode assemblages, which indicate the presence of marine outer shelf to lagoonal environments during the Early Devonian. The dynamics of their taxonomic diversity and some examples of the marine and lagoonal assemblages are shown. Correlation of facially mono- and heterogenous deposits is based on ostracode data.


Late Silurian, Early Devonian, Ostracodes

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