Ductina is a genus of trilobites of the order Phacopida, family Phacopidae, from the Lower Devonian. These are usually small trilobites, rarely exceeding half an inch. They come from the Devonian time period and are found in Germany and China. Ductina is easily distinguishable from other genera in this family due to their lack of eyes. Some Known Species and Locations. * Ductina dunctifrons, Germany. * Ductina vietnamica, China. Image:Kolihapeltis 01 Pengo.jpg This Trilobite-related article is a stub. You can help Fossil Wiki by [ expanding it].