Full reference: R. M. Owens. 1973. Ordovician Proetidae (Trilobita) from Scandinavia. Norsk Geologisk Tidsskrift 53:117-181
Sister taxa: none
Type specimen: PMO 8831, a cephalon/head (cranidium). Its type locality is Holmesnkjæret, Holmen, which is in a Rawtheyan carbonate limestone in the Kalvsjøen Formation of Norway.
Ecology: fast-moving low-level epifaunal deposit feeder