LATE ORDOVICIAN LINGULATE BRACHIOPODS FROM ESTONIA

The lingulate brachiopod fauna from the Upper Ordovician Harju Series of southern Estonia consists of nine taxa, including the new acrotreti d species Rhinotreta laeta, Opsiconidion praecursor, and Scaphelasma s cutula. The unusual brachiopod-dominated assemblage was isolated by ac id etching, mainly from a thin aphanitic limestone unit in the lower P irgu Stage of the Viljandi core. The pitted micro-ornament on the larv al and postlarval shell and the deep emarginature (pedicle notch) of t he lingulide Rovellella minuta suggests that it belongs to the Zhanate llidae.