Trilobita - Ptychopariida - Ptychopariidae

Alternative combination: Nangaoia (Gedongaspis) oblonga

Full reference: J. L. Yuan, Y. L. Zhao, Z. Z. Wang, Z. Zhen, and X. Y. Chen. 1997. A preliminary study on Lower-Middle Cambrian boundary and trilobite fauna at Balang, Taijiang, Guizhou, south China. Acta Palaeontologica Sinica 36(4):494-524

Belongs to Gedongaspis according to P. A. Jell and J. M. Adrain 2003

Sister taxon: Gedongaspis granulosa

Type specimen: Its type locality is Balang, 10-1, which is in a Taijangian slope mudstone in the Kaili Formation of China