Ductina is a genus of extinct, small to average sized, eyeless phacopid trilobite, that lived during the Devonian. The body of Ductina is small to average...

Nephranops, and Plagiolaria, or lack eyes altogether, like Afrops, Dianops, Ductina, and Trimerocephalus. The natural fracture lines (sutures) of the head...

However, some Phacopina species lack eyes, such as the species of the genus Ductina. The natural fracture lines (sutures) of the head run along the top edges...

some Eodiscina like Weymouthia, all Agnostina, and some Phacopina such as Ductina. The marginal sutures exhibited by the harpetids and trinucleioids, are...

upper left: Confuciusornis sanctus displayed in Hong Kong Science Museum, Ductina vietnamica from the Devonian (Hunan), Protopsephurus fossil specimen excavated...

Illaenula illaenoides, which was originally described under the genus Ductina. The type locality was the Stínava-Chabicov Formation, in Moravia. Available...

Drumaspis Duamsannella Dubhglasina (=Australoharpes; =Sinoharpes) Dubovikites Ductina Dudleyaspis Dudu Duftonia Duibianaspis Dulanaspis Dunderbergia Dunderburgella...

one of several phacopid genera that is eyeless (others being Dianops, Ductina, and Trimerocephaloides). The dorsal facial sutures are not functional...