Trilobita - Agnostida - Ptychagnostidae

Belongs to Ptychagnostus according to Qian 1983

Sister taxa: Ptychagnostus (Ptychagnostus), Ptychagnostus acidusus, Ptychagnostus aculeatus, Ptychagnostus aksayensis, Ptychagnostus atavus, Ptychagnostus convexus, Ptychagnostus cuyanus, Ptychagnostus intermedius, Ptychagnostus karatauensis, Ptychagnostus punctuosus, Ptychagnostus seminula, Ptychagnostus sinicus, Ptychagnostus spinosus

Ecology: nektonic suspension feeder