Journal
NEUES JAHRBUCH FUR GEOLOGIE UND PALAONTOLOGIE-ABHANDLUNGEN
Volume 309, Issue 1, Pages 43-48Publisher
E SCHWEIZERBARTSCHE VERLAGSBUCHHANDLUNG
DOI: 10.1127/njgpa/2023/1147
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Key words; Ichnology; palaeoenvironment; carbonates; burrows; ichnofacies
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The first Oikobesalon burrow from the Upper Ordovician of Russia is described. It closely resembles O. coricaceum specimens from the Darriwilian of Estonia. The earliest records of O. coricaceum are from Baltica and have a temperate climate association, while Silurian records are associated with tropical climate. The trace makers of O. coricaceum in the Sandbian of Russia lived in a temperate sea. The trace makers of Oikobesalon tolerated different sedimentary environments in the Ordovician.
The first Oikobesalon burrow is described from the Upper Ordovician of Russia. The Rus-sian specimen closely resembles O. coricaceum specimens described from the Darriwilian of Estonia. The earliest records of O. coricaceum are from Baltica and are associated with temperate climate, whereas all Silurian records are associated with tropical climate. The trace makers of O. coricaceum in the Sandbian of Russia lived in a temperate sea. The trace-makers of Oikobesalon tolerated dif-ferent sedimentary environments in the Ordovician. Oikobesalon was produced in relatively shallow water carbonate platform environments in the Darriwilian of Estonia and Sandbian of Russia, whereas in the Middle Ordovician of Norway it occurs in distal turbidites and deeper marine deposits of the Nereites ichnofacies.
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