Isoxys (Arthropoda) with preserved soft anatomy from the Sirius Passet Lagerstatte, lower Cambrian of North Greenland by Stein, M, Peel, J, Siveter, D, Williams, M

“…It is possible that the animal possessed a furca. The inner lamella, lining the ventral surface of the shield is recognised in Isoxys for the first time. …”