ammonites
Blackwelderia chiawangensis Chu 1959 (trilobite)

Trilobita - Lichida - Damesellidae

Full reference: C. L. Chu. 1959. Trilobites from the Kushan Formation of north and northeastern China. Memoirs of the Institute of Palaeontology Academia Sinica 2:44-128

Belongs to Blackwelderia according to Chu 1959

Sister taxa: Blackwelderia fortis, Blackwelderia liaoningensis, Blackwelderia mui, Blackwelderia nodosaria, Blackwelderia octaspina, Blackwelderia paronai, Blackwelderia pingluensis, Blackwelderia shengi, Blackwelderia sinensis, Blackwelderia triangularis, Blackwelderia youshuica

Type specimen: Its type locality is Pangjiawa-Huamiaotsun, Jiawang, which is in a Guzhangian carbonate limestone in the Kushan Formation of China

Ecology: fast-moving low-level epifaunal carnivore