New placognath Eunicida (Polychaeta) from the Ordovician and Silurian of Poland

Abstract

Four species of placognath Eunicida (Polychaeta) represented by isolated jaws and jaw apparatuses are described from Ordovician and Silurian erratic boulders collected along the Baltic coast in Poland. One new genus (Rak-vereprion gen. n.) and two new species (Mochtyella angelini sp. n., and M. grazynae sp. n.) are erected.