What is "schmalenseeia"

Schmalenseeia is genus of trilobites of uncertain affinity, that lived during the middle Middle to earliest Upper Cambrian (Tomagnostus fissus/Ptychagnostus atavus- to Agnostus pisiformis-zone). Species assigned to Schmalenseeia have been found in Norway, Sweden, Northern Siberia, Eastern China, Australia (Tasmania), India (Himalayas) and the United Kingdom.