Trilobita - Ptychopariida - Agraulidae

Full reference: J. L. Yuan and Y. Li. 1999. Lower-Middle Cambrian boundary and trilobite fauna at Laoyingshan, Huainan, Anhui. Acta Palaeontologica Sinica 38(4):407-422

Belongs to Plesiagraulos according to J. L. Yuan and Y. Li 1999

Sister taxon: Plesiagraulos tienshihfuensis

Type specimen: Its type locality is Laoyingshan, 27C, which is in a Taijangian carbonate limestone in the Laoyingshan Formation of China

Ecology: fast-moving low-level epifaunal carnivore