Dussiella is a genus of extinct trilobites belonging to the family Asaphidae. These trilobites lived during the Ordovician period. They are characterized by their relatively large size, smooth cephalon (head shield), and pygidium (tail shield). Fossils of Dussiella have been found in various regions, particularly in Baltoscandia and other parts of Europe.
The genus Dussiella is important for biostratigraphic correlations within the Ordovician period, aiding in the dating and correlation of rock layers across different geographic areas. Distinguishing features within the genus often involve subtle variations in the proportions of the cephalon and pygidium, as well as the number and arrangement of segments on the thorax (middle body section).
Further research into Dussiella continues to refine our understanding of the evolutionary relationships within the Asaphidae family and the paleogeography of the Ordovician period.