Abstract

The small problematic mollusc Jinonicella kolebabai Pokorný, 1978 is described from the lower Silurian Laketown Dolostone at Barn Hills in Utah, USA. The associated conodonts suggest a late Telychian age for the assemblage, which makes this the oldest occurrence of this species. Previous Silurian records of Jinonicella were known from the Sheinwoodian to Ludfordian of Bohemia, the Czech Republic, Gotland, Sweden and the Carnic Alps of Austria.

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