Evidence of Bioerosive Structures in Quaternary Glaciomarine Sediments from Southwestern Iceland |
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| Authors: | Richard Pokorný Marcel ?tofik |
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| Institution: | 1. Jan Evangelista Purkyně University, Faculty of Environment, ústí nad Labem, Czech Republic;2. Masaryk University, Faculty of Science, Department of Geological Sciences, Brno, Czech Republic;3. Jan Evangelista Purkyně University, Faculty of Science, ústí nad Labem, Czech Republic |
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| Abstract: | The Late Weichselian marine and glaciomarine sediments occurring in many places along the coast of Iceland are rich in invertebrate fossils, especially mollusks and barnacles. A diverse ichnofauna, constituted especially by bioerosional traces documenting the activity of predators and animals that use the host shell for attachment or the construction of dwellings, was identified at the localities of Ósmelur, Saurbær, and Brekkubakkar in southwestern Iceland. The ichnotaxa identified include Anellusichnus circularis (Santos, Mayoral, and Muñiz), Caulostrepsis isp., Centrichnus concentricus (Bromley and Martinell), Clionolithes isp., Finichnus peristroma (Taylor, Wilson, and Bromley), Finichnus isp., Sedilichnus asperus (Nielsen and Nielsen), Sedilichnus cf. excavatus (Donovan and Jagt), Sedilichnus gradatus (Nielsen and Nielsen), Sedilichnus smiley isp. nov., Sedilichnus ovalis (Bromley), Sedilichnus paraboloides (Bromley), Sedilichnus simplex (Bromley), and Sedilichnus spongiophilus (Müller). |
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| Keywords: | Iceland bioerosive structures Late Weichselian Praedichnia Fixichnia |
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